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During the course of your relationship with Dynavax Technologies Corporation (“Dynavax”), you may receive material information that is not yet publicly available (“material nonpublic information”) about Dynavax or other publicly traded companies that Dynavax has business relationships with. Material nonpublic information may give you, or someone you pass that information on to, an advantage over others when deciding whether to buy, sell or otherwise transact in Dynavax’s securities or the securities of another publicly traded company. This policy sets forth guidelines with respect to transactions in Dynavax securities by our employees, directors and designated consultants who are advised that they are subject to this policy (“designated consultants”) and the other persons subject to this policy as described below.

3. disclose material nonpublic information to persons within Dynavax whose jobs do not require them to have that information, or outside of Dynavax to other persons, such as family, friends, business associates and investors, unless the disclosure is made in accordance with Dynavax’s policies regarding the protection or authorized external disclosure of information regarding Dynavax; or

The prohibition against insider trading is absolute. It applies even if the decision to trade is not based on such material nonpublic information. It also applies to transactions that may be necessary or justifiable for independent reasons (such as the need to raise money for an emergency expenditure) and also to very small transactions. All that matters is whether you are aware of any material nonpublic information relating to Dynavax at the time of the transaction.

The U.S. federal securities laws do not recognize any mitigating circumstances to insider trading. In addition, even the appearance of an improper transaction must be avoided to preserve Dynavax’s reputation for adhering to the highest standards of conduct. In some circumstances, you may need to forgo a planned transaction even if you planned it before becoming aware of the material nonpublic information. So, even if you believe you may suffer an economic loss or sacrifice an anticipated profit by waiting to trade, you must wait.

It is also important to note that the laws prohibiting insider trading are not limited to trading by the insider alone; advising others to trade on the basis of material nonpublic information is prohibited by law and is also squarely prohibited by this policy. Liability in such cases can extend both to the “tippee”—the person to whom the insider disclosed material nonpublic information—and to the “tipper,” the insider himself or herself. In such cases, you can be held liable for your own transactions, as well as the transactions by a tippee and even the transactions of a tippee’s tippee. For these and other reasons, it is the policy of Dynavax that no employee, director or consultant of Dynavax (or any other person subject to

this policy) may either (a) recommend to another person that they buy, hold or sell Dynavax’s securities at any time or (b) disclose material nonpublic information to persons within Dynavax whose jobs do not require them to have that information, or outside of Dynavax to other persons (unless the disclosure is made in accordance with Dynavax’s policies regarding the protection or authorized external disclosure of information regarding Dynavax).

In addition, it is the policy of Dynavax that no employee, director or designated consultant of Dynavax (or any other person subject to this policy) who, in the course of working for Dynavax, learns of or is otherwise aware of material nonpublic information about another publicly traded company with which Dynavax does business, including any customer, supplier, partner or collaborator of Dynavax, may trade in that company’s securities until the information becomes public or is no longer material.

This policy applies to all transactions in securities issued by Dynavax, as well as derivative securities that are not issued by Dynavax, such as exchange-traded put or call options or swaps relating to Dynavax’s securities. Accordingly, for purposes of this policy, the terms “trade,” “trading” and “transactions” include not only purchases and sales of Dynavax’s common stock in the public market but also any other purchases, sales, transfers or other acquisitions and dispositions of common or preferred equity, options, warrants and other securities (including debt securities) and other arrangements or transactions that affect economic exposure to changes in the prices of these securities.

This policy applies to you and all other employees, directors and designated consultants of Dynavax and its subsidiaries. This policy also applies to members of your immediate family, persons with whom you share a household, persons who are your economic dependents and any other individuals or entities whose transactions in securities you influence, direct or control (including, e.g., a venture or other investment fund, if you influence, direct or control transactions by the fund or if the fund has not implemented sufficient insider trading controls and procedures to eliminate the flow of information between you to the persons who do influence, direct or control such transactions). The foregoing persons who are deemed subject to this policy are referred to in this policy as “Related Persons.” You are responsible for making sure that your Related Persons comply with this policy.

It is not always easy to figure out whether you are aware of material nonpublic information. But there is one important factor to determine whether nonpublic information you know about a public company is material: whether the information could be expected to affect the market price of that company’s securities or to be considered important by investors who are considering trading that company’s securities. If the information makes you want to trade, or delay or avoid trading, it would probably have the same effect on others. Keep in mind that both positive and negative information can be material.

There is no bright-line standard for assessing materiality; rather, materiality is based on an assessment of all of the facts and circumstances, and is often evaluated by relevant enforcement authorities with the benefit of hindsight. Depending on the specific details, the following items may be considered material nonpublic information until publicly disclosed within the meaning of this policy. There may be other types of information that would qualify as material information as well; use this list merely as a non-exhaustive guide:

The prohibition on trading when you have material nonpublic information lifts once that information becomes publicly disseminated. But for information to be considered publicly disseminated, it must be widely disseminated through a press release, a filing with the Securities and Exchange Commission (the “SEC”), or other widely disseminated announcement. Once information is publicly disseminated, it is still necessary to afford the investing public with sufficient time to absorb the information. Generally speaking, information will be considered publicly disseminated for purposes of this policy only after one full trading day has elapsed since the information was publicly disclosed. For example, if we announce material nonpublic information before trading begins on Wednesday, then you may execute a transaction in our securities on Thursday; if we announce material nonpublic information after trading ends on Wednesday, then you may execute a transaction in our securities on Friday. Depending on the particular circumstances, Dynavax may determine that a longer waiting period should apply to the release of specific material nonpublic information.

Because our workplace culture tends to be open, odds are that the vast majority of our employees, directors and designated consultants will possess material nonpublic information at certain points during the year. To minimize even the appearance of insider trading among our employees, directors and designated consultants, we have established “quarterly trading blackout periods” during which Dynavax employees, directors, designated consultants and their Related Persons— regardless of whether they are aware of material nonpublic information or not—may not conduct any trades in Dynavax securities. That means that, except as described in this policy, all Dynavax employees, directors, designated consultants and their Related Persons will be able to trade in Dynavax securities only during limited open trading window periods that generally will begin after one full trading day has elapsed since the public dissemination of Dynavax’s annual or quarterly financial results and end at the beginning of the next quarterly trading blackout period. Of course, even during an open trading window period, you may not (unless an exception applies) conduct any trades in Dynavax securities if you are otherwise in possession of material nonpublic information.

For purposes of this policy, each “quarterly trading blackout period” will generally begin on the fifteenth day of the third month of each fiscal quarter and end after one full trading day has elapsed since the public dissemination of Dynavax’s financial results for that quarter. Please note that the quarterly trading blackout period may commence early or may be extended if, in the judgment of the Chief

Financial Officer or General Counsel (each, a “Trading Compliance Officer”), there exists undisclosed information that would make trades by Dynavax employees, directors and designated consultants inappropriate. It is important to note that the fact that the quarterly trading blackout period has commenced early or has been extended should be considered material nonpublic information that should not be communicated to any other person.

A Dynavax employee, director or designated consultant who believes that special circumstances require him or her to trade during a quarterly trading blackout period should consult the General Counsel. Permission to trade during a quarterly trading blackout period will be granted only where the circumstances are extenuating, the General Counsel concludes that the person is not in fact aware of any material nonpublic information relating to Dynavax or its securities, and there appears to be no significant risk that the trade may subsequently be questioned.

From time to time, an event may occur that is material to Dynavax and is known by only a few directors, officers and/or employees. So long as the event remains material and nonpublic, the persons designated by a Trading Compliance Officer may not trade in Dynavax’s securities. In that situation, Dynavax will notify the designated individuals that neither they nor their Related Persons may trade in the Dynavax’s securities. The existence of an event-specific trading blackout should also be considered material nonpublic information and should not be communicated to any other person. Even if you have not been designated as a person who should not trade due to an event-specific trading blackout, you should not trade while aware of material nonpublic information. Exceptions will not be granted during an event-specific trading blackout.

1.Option Exercises. This policy does not apply to the exercise of options granted under Dynavax’s equity compensation plans for cash or, where permitted under the option, by a net exercise transaction with the Company or, if permitted, by delivery to Dynavax of already-owned Dynavax stock. This policy does, however, apply to any sale of stock as part of a broker-assisted cashless exercise or any other market sale, whether or not for the purpose of generating the cash needed to pay the exercise price or pay taxes.

2.Tax Withholding Transactions. This policy does not apply to the surrender of shares directly to Dynavax to satisfy tax withholding obligations as a result of the issuance of shares upon vesting or exercise of restricted stock units, options or other equity awards granted under Dynavax’s equity compensation plans. Of course, any market sale of the stock received upon exercise or vesting of any such equity awards remains subject to all provisions of this policy whether or not for the purpose of generating the cash needed to pay the exercise price or pay taxes.

3.ESPP. This policy does not apply to the purchase of stock by employees under Dynavax’s Employee Stock Purchase Plan (“ESPP”) on periodic designated dates in accordance with the ESPP. This policy does, however, apply to any sale of stock acquired pursuant to the ESPP.

4.10b5-1 Automatic Trading Programs. Under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended (“Exchange Act”), and as permitted by Dynavax, employees, directors and consultants may establish a trading plan under which a broker is instructed to buy and sell Dynavax securities based on pre-determined criteria (a “Trading Plan”). So long as a Trading Plan is properly established, purchases and sales of Dynavax securities pursuant to that Trading Plan are not subject to this policy. To be properly established, an employee’s, director’s or consultant’s Trading Plan must be established in compliance with the requirements of Rule 10b5-1 of the Exchange Act and any applicable

5.401(k) Plan. This policy does not apply to purchases of Dynavax’s securities in Dynavax’s 401(k) plan, if presently allowed under the current 401(k) plan design, resulting from your periodic contribution of money to the plan pursuant to your payroll deduction election. This policy does apply, however, to certain elections you may make under the 401(k) plan, if allowed, including: (a) an election to increase or decrease the percentage of your periodic contributions that will be allocated to the Dynavax stock fund; (b) an election to make an intra-plan transfer of an existing account balance into or out of the Dynavax stock fund; (c) an election to borrow money against your 401(k) plan account if the loan will result in a liquidation of some or all of your Dynavax stock fund balance; and (d) an election to pre-pay a plan loan if the pre-payment will result in allocation of loan proceeds to the Dynavax stock fund.

1.Inherently Speculative Transactions. No Dynavax employee, director or designated consultant may engage in short sales, transactions in put options, call options or other derivative securities on an exchange or in any other organized market, or in any other inherently speculative transactions with respect to Dynavax’s stock.

2.Hedging Transactions. Hedging or monetization transactions are transactions that can be accomplished through a number of possible mechanisms, including through the use of financial instruments such as prepaid variable forwards, equity swaps, collars and exchange funds. Such hedging transactions may permit a Dynavax employee, director or designated consultant to continue to own Dynavax’s securities obtained through employee benefit plans or otherwise, but without the full risks and rewards of ownership. When that occurs, the Dynavax employee, director or designated consultant may no longer have the same objectives as Dynavax’s other shareholders. Therefore, Dynavax employees, directors and designated consultants are prohibited from engaging in any such transactions.

3.Margin Accounts and Pledged Securities. Securities held in a margin account as collateral for a margin loan may be sold by the broker without the customer’s consent if the customer fails to meet a margin call. Similarly, securities pledged (or hypothecated) as collateral for a loan may be sold in foreclosure if the borrower defaults on the loan. Because a margin sale or foreclosure sale may occur at a time when the pledgor is aware of material nonpublic information or otherwise is not permitted to trade in Dynavax’s securities, Dynavax employee, director and designated consultants are prohibited from holding Company Securities in a margin account or otherwise pledging Dynavax’s securities as collateral for a loan.

4.Standing and Limit Orders. Standing and limit orders (except standing and limit orders under approved Trading Plans, as discussed above) create heightened risks for insider trading violations similar to the use of margin accounts. There is no control over the timing of purchases or sales that result from standing instructions to a broker, and as a result the broker could execute a transaction when a Dynavax employee, director or designated consultant is in possession of material nonpublic information. Dynavax therefore discourages placing standing or limit orders on Dynavax’s securities. If a person subject to this policy determines that they must use a standing order or limit order (other than under an approved Trading Plan as discussed above), the order should be limited to short duration and the person using such standing order or limit order is required to cancel such instructions immediately in the event restrictions are imposed on their ability to trade pursuant to the “Quarterly Trading Blackouts” and “Event-Specific Trading Blackouts” provisions above.

In addition to the requirements above, officers, directors and other applicable members of management (“Covered Insiders”) who have been notified that they are subject to pre-clearance requirements face a further restriction: Even during an open trading window, they may not engage in any transaction in Dynavax’s securities without first obtaining pre-clearance of the transaction from a Dynavax Trading Compliance Officer, or his or her designee at least two business days in advance of the proposed transaction. The Trading Compliance Officer or his or her designee will then determine whether the transaction may proceed and, if so, will (a) provide a written pre-clearance approval and (b) assist with or direct a delegate to help comply with any required reporting requirements under Section 16(a) of the

Exchange Act. Pre-cleared transactions not completed within five business days will require new pre-clearance. Dynavax may choose to shorten this period. Approval of a pre-clearance request should not be treated as a safe-harbor from insider trading laws. Individuals remain at all times personally responsible for their own trades and compliance with applicable laws. If a person subject to pre-clearance learns of new information after a pre-clearance is approved but before a trade is executed, they must inform the Trading Compliance Officer and submit a new request.

Persons subject to pre-clearance must also give advance notice of their plans to exercise an outstanding stock option to a Trading Compliance Officer. Once any transaction takes place, the officer, director or applicable member of management must immediately notify the Trading Compliance Officer and any other individuals identified under the heading “Notification of Execution of Transaction” in Dynavax’s Section 16 Compliance Program so that Dynavax may assist in any Section 16 reporting obligations.

Officers and directors subject to the reporting obligations under Section 16 of the Exchange Act should take care to avoid short-swing transactions (within the meaning of Section 16(b) of the Exchange Act) and the restrictions on sales by control persons (Rule 144 under the Securities Act of 1933, as amended), and should file all appropriate Section 16(a) reports (Forms 3, 4 and 5), which are described in Dynavax’s Section 16 Compliance Program, and any notices of sale required by Rule 144.

No director or executive officer of Dynavax may, directly or indirectly, purchase, sell or otherwise transfer any equity security of Dynavax (other than an exempt security) during any “blackout period” (as defined in Regulation BTR under the Exchange Act) if a director or executive officer acquires or previously acquired such equity security in connection with his or her service or employment as a director or executive officer. This prohibition does not apply to any transactions that are specifically exempted, including but not limited to, purchases or sales of Dynavax’s securities made pursuant to, and in compliance with, a Trading Plan; compensatory grants or awards of equity securities pursuant to a plan that, by its terms, permits executive officers and directors to receive automatic grants or awards and specifies the terms of the grants and awards; or acquisitions or dispositions of equity securities by will or the laws of descent or pursuant to a domestic relations order. Dynavax will notify each director and executive officer of any blackout periods in accordance with the provisions of Regulation BTR. Because Regulation BTR is very complex, no director or executive officer of Dynavax should engage in any transactions in Dynavax’s securities, even if believed to be exempt from Regulation BTR, without first consulting with the General Counsel.

This policy continues to apply to your transactions in Dynavax’s securities or the securities of other public companies engaged in business transactions with Dynavax even after your relationship with Dynavax has ended. If you are aware of material nonpublic information when your relationship with Dynavax ends, you may not trade Dynavax’s securities or the securities of other applicable companies until the material nonpublic information has been publicly disseminated or is no longer material. Further, if you leave Dynavax during a trading blackout period, then you may not trade Dynavax’s securities or the securities of other applicable companies until the trading blackout period has ended.

Persons subject to this policy have ethical and legal obligations to maintain the confidentiality of information about Dynavax and to not engage in transactions in Dynavax’s securities while aware of material nonpublic information. Each individual is responsible for making sure that he or she complies

with this policy, and that any family member, household member or other person or entity whose transactions are subject to this policy, as discussed under the heading “Persons Subject to this Policy” above, also comply with this policy. In all cases, the responsibility for determining whether an individual is aware of material nonpublic information rests with that individual, and any action on the part of Dynavax or any employee or director of Dynavax pursuant to this policy (or otherwise) does not in any way constitute legal advice or insulate an individual from liability under applicable securities laws. You could be subject to severe legal penalties and disciplinary action by Dynavax for any conduct prohibited by this policy or applicable securities laws. See “Penalties” below.

Anyone who engages in insider trading or otherwise violates this policy may be subject to both civil liability and criminal penalties. Violators also risk disciplinary action by Dynavax, including termination of employment. Anyone who has questions about this policy should contact their own attorney or Dynavax’s General Counsel, at legal@dynavax.com. Please also see Frequently Asked Questions, which are attached as Exhibit A.

Dynavax is committed to continuously reviewing and updating its policies and procedures. Dynavax therefore reserves the right to amend, alter or terminate this policy at any time and for any reason. A current copy of Dynavax’s policies regarding insider trading may be obtained from our web site at https://investors.dynavax.com/corporate-governance, or by contacting legal@dynavax.com.

A: Generally speaking, insider trading is the buying or selling of stocks, bonds, futures or other securities by someone who possesses or is otherwise aware of material nonpublic information about the securities or the issuer of the securities. Insider trading also includes trading in derivatives (such as put or call options) where the price is linked to the underlying price of a company’s stock. It does not matter whether the decision to buy or sell was influenced by the material nonpublic information, how many shares you buy or sell, or whether it has an effect on the stock price. Bottom line: If you are aware of material nonpublic information about Dynavax or another publicly traded company that Dynavax has business relationships with and you trade in Dynavax’s or such other company’s securities, you have broken the law and this policy.

A: If company insiders are able to use their confidential knowledge to their financial advantage, other investors would not have confidence in the fairness and integrity of the market. This ensures that there is an even playing field by requiring those who are aware of material nonpublic information to refrain from trading.

A: Information is material if it would influence a reasonable investor whether to buy or sell a stock, bond future or other security. This could mean many things: financial results, clinical or regulatory results, potential acquisitions or major contracts to name just a few. Information is nonpublic if it has not yet been publicly disseminated within the meaning of our insider trading policy.

A: Anyone who buys or sells a security while aware of material nonpublic information, or provides material nonpublic information that someone else uses to buy or sell a security, may be guilty of insider trading. This applies to all individuals, including officers, directors and others who don’t even work at Dynavax. Regardless of who you are, if you know something material about the value of a security that not everyone knows and you trade (or convince someone else to trade) in that security, you may be found guilty of insider trading.

A: The same rules apply to U.S. and foreign employees and consultants. The Securities and Exchange Commission (the U.S. government agency in charge of investor protection) and the Financial Industry Regulatory Authority (a private regulator that oversees U.S. securities exchanges) routinely investigate trading in a company’s securities conducted by individuals and firms based abroad. In addition, as a Dynavax director, employee or designated consultant, our policies apply to you no matter where you work.

A: That is called “tipping.” You are the “tipper” and the other person is called the “tippee.” If the tippee buys or sells based on that material nonpublic information, both you and the “tippee” could be found guilty of insider trading. In fact, if you tell family members who tell others and those people then trade on the information, those family members and the “tippee” might be found guilty of insider trading too. To prevent this, you may not discuss material nonpublic information about the company with anyone outside Dynavax, including spouses, family members, friends or business associates (unless the disclosure is made in accordance with Dynavax’s policies regarding the protection or authorized external disclosure of information regarding Dynavax). This includes anonymous discussions on the internet about Dynavax or companies with which Dynavax does business.

A: That is still tipping, and you can still be responsible for insider trading. You may never recommend to another person that they buy, hold or sell Dynavax’s common stock or any derivative security related to Dynavax’s common stock, since that could be a form of tipping.

A: In addition to disciplinary action by Dynavax—which may include termination of employment—you may be liable for civil sanctions for trading on material nonpublic information. The sanctions may include return of any profit made or loss avoided as well as penalties of up to three times any profit made or any loss avoided. Persons found liable for tipping material nonpublic information, even if they did not trade themselves, may be liable for the amount of any profit gained or loss avoided by everyone in the chain of tippees as well as a penalty of up to three times that amount. In addition, anyone convicted of criminal insider trading could face prison and additional fines.

A: Possibly. U.S. insider trading laws generally restrict everyone aware of material nonpublic information about a company from trading in that company’s securities, regardless of whether the person is directly connected with that company, except in limited circumstances. Therefore, if you have material nonpublic information about another company, you should not trade in that company’s securities. You should be particularly conscious of this restriction if, through your position at Dynavax, you sometimes obtain sensitive, material information about other companies and their business dealings with Dynavax.

A: Not necessarily. Even if you do not violate U.S. law, you may still violate our policies. For example, employees and consultants may violate our policies by breaching their confidentiality obligations or by recommending Dynavax stock as an investment, even if these actions do not violate securities laws. Our policies can be stricter than the law requires so that we and our employees and consultants can avoid even the appearance of wrongdoing. Therefore, please review the entire policy carefully.

A: If you are aware of material nonpublic information, you may not buy or sell our common stock until one full trading day has elapsed since the information was publicly disclosed. At that point, the information is considered publicly disseminated for purposes of our insider trading policy. For example, if we announce material nonpublic information before trading begins on Wednesday, then you may execute a transaction in our securities on Thursday; if we announce material nonpublic information after trading ends on Wednesday, then you may execute a transaction in our securities on Friday. Even if you are not aware of any material nonpublic information, you may not trade our common stock during any trading “blackout” period. Our insider trading policy describes the quarterly trading blackout period, and additional event-driven trading blackout periods may be announced by email.

A: No, unless it is in connection with a 10b5-1 trading plan (see Question 27 below). If you have any open orders when a blackout period commences other than in connection with a 10b5-1 trading plan, it is your responsibility to cancel these orders with your broker. If you have an open order and it executes after a blackout period commences not in connection with a 10b5¬1 trading plan, you will have violated our insider trading policy and may also have violated insider trading laws.

“Derivative securities” are securities other than common stock that are speculative in nature because they permit a person to leverage their investment using a relatively small amount of money. Examples of derivative securities include “put options” and “call options.” These are different from employee options and other equity awards granted under our equity compensation plans, which are not derivative securities for purposes of our policy.

“Short selling” is profiting when you expect the price of the stock to decline, and includes transactions in which you borrow stock from a broker, sell it, and eventually buy it back on the market to return the borrowed shares to the broker. Profit is realized if the stock price decreases during the period of borrowing.

A: Many companies with volatile stock prices have adopted similar policies because of the temptation it represents to try to benefit from a relatively low-cost method of trading on short-term swings in stock prices, without actually holding the underlying common stock, and encourages speculative trading. We are dedicated to building stockholder value, and short selling our common stock conflicts with our values and would not be well-received by our stockholders.

A: Margin loans are subject to a margin call whether or not you possess material nonpublic information at the time of the call. If a margin call were to be made at a time when you were aware of material nonpublic information and you could not or did not supply other collateral, you may be liable under insider trading laws because of the sale of the securities (through the margin call). The sale would be attributed to you even though the lender made the ultimate determination to sell. The U.S. Securities and Exchange Commission takes the view that you made the determination to not supply the additional collateral and you are therefore responsible for the sale.

A: No. Pledging your shares as collateral for a personal loan could cause the pledgee to transfer your shares during a trading blackout period or when you are otherwise aware of material nonpublic information. As a result, you may not pledge your shares as collateral for a loan.

A: Hedging or monetization transactions, including through the use of financial instruments such as prepaid variable forwards, equity swaps, collars and exchange funds are prohibited by our insider trading policy. Since such hedging transactions allow you to continue to own Dynavax’s securities obtained through employee benefit plans or otherwise, but without the full risks and rewards of ownership, you may no longer have the same objectives as Dynavax’s other shareholders. Therefore, our insider trading policy prohibits you from engaging in any such transactions.

A: Yes. You may exercise the options for cash (or via net exercise transaction with the company) and receive shares, but you may not sell the shares (even to pay the exercise price or any taxes due) during a trading blackout period or any time that you are aware of material nonpublic information. To be clear, you may not effect a broker-assisted cashless exercise (these cashless exercise transactions include a market sale) during a trading blackout period or any time that you are aware of material nonpublic information

A: It depends. If your employment with Dynavax ends during a trading blackout period, you will be subject to the remainder of that trading blackout period. If your employment with Dynavax ends on a day that the trading window is open, you will not be subject to the next trading blackout period. However, even if you are not subject to our trading blackout period after you leave Dynavax, you should not trade in Dynavax securities if you are aware of material nonpublic information. That restriction stays with you as long as the information you possess is material and not publicly disseminated within the meaning of our insider trading policy.

A: Subject to the requirements discussed in our insider trading policy and any 10b5-1 trading plan guidelines, eligible persons may use a routine trading program. A routine trading program, also known as a 10b5-1 plan, allows you to set up a highly structured program with your stock broker where you specify ahead of time the date, price, and amount of securities to be traded. If you wish to create a 10b5-1 plan, please contact our legal team to confirm you are an eligible person and to obtain approval at legal@dynavax.com.


Exhibit 19.1 Dynavax Technologies Corporation Insider Trading Policy (Adopted May 25, 2023)


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