RAPID MICRO BIOSYSTEMS, INC. — Call Transcript 2026

Good day everyone, and welcome to the 2026 Rapid Micro Biosystems Annual Meeting. Now I'll turn the meeting over to your host, Robert Spignesi, President, Chief Executive Officer, and a Director. Please go ahead, Robert. Thank you. Good morning and welcome to the 2026 virtual annual meeting of Rapid Micro Biosystems, Inc. I am Robert Spignesi, President, Chief Executive Officer, and a Director of Rapid Micro Biosystems. It's my pleasure to welcome you here today for this meeting. The meeting is now called to order. This meeting is being held in accordance with the company's bylaws and Delaware law. Our meeting today will take care of the formal business at hand, which is described in our notice and proxy statement, a copy of which was made available on or about April 8th, 2026, to all of our stockholders of record at the close of business on March 31st, 2026. During this portion of the meeting, all discussion will be limited to the official business at hand. Before proceeding to the formal business, I would like to recognize the directors of the corporation who are here with us today. Dr. Kirk D. Malloy, our Board Chair, who has served as one of our Directors since 2023. Dafni Bika, who has served as one of our directors since 2025. Richard Kollender, who has served as one of our directors since 2009 and is a director nominee who is standing for election today. Melinda Litherland, who has served as one of our directors since 2021. Inese Lowenstein, who has served as one of our directors since 2021. Natale Ricciardi, who has served as one of our directors since 2016 and whose three year term ends at this meeting today. Nat joined the board of directors in March 2016. His experience and guidance have been instrumental in the development of the company. I'd like to thank Nat for all he's done for the company and wish him well as he departs from the Board of Directors. I would also like to welcome the members of our executive team, representatives from PricewaterhouseCoopers or PwC, our independent registered public accounting firm, and representatives from Goodwin Procter, our outside counsel. Our Senior Vice President, Legal and Corporate Secretary, James Xu, will act as secretary of the meeting and will take meeting minutes. In addition, the Board of Directors has appointed Sean Wirtjes, our Chief Financial Officer and Treasurer, to act as Inspector of Election for this annual meeting, and he will tabulate the results of the voting. The Inspector of Election is with us today and has signed the oath of his office, which will be filed with the minutes of this meeting. We will now proceed to the formal business of the meeting, notice of which was sent to all stockholders of record as of the close of business on March 31st, 2016. Class A common stockholders of record on that date are entitled to vote at this meeting. We electronically posted to the virtual meeting platform a record of stockholders as of that date. A duplicate record has been on file at the principal place of business of the corporation for the last 10 days immediately prior to the date of this meeting, and has been available for inspection by any stockholder during that period at any time during normal business hours. Rules of conduct of the meeting are available on the right-hand side of the screen. Please note that only stockholders who have logged in using their 16-digit control number will be able to vote and ask questions at the meeting. If you have any questions, I encourage you to please submit them now. If any stockholder wishes to address the chair during the formal part of this meeting, please do so by submitting your question in writing through the virtual meeting platform via the link provided. Sean? 1,267,511 shares of Class A common stock entitled to vote at the meeting. A majority of shares are represented either in person or by proxy, and therefore a quorum is present. Thank you. I declare that a quorum is present. We may now proceed to transact the business for which this meeting has been called. Let me briefly describe the voting procedures. If you have previously turned in your proxy and you do not intend to change your vote, you do not need to complete another proxy or ballot. Your vote will be counted. If you are eligible to vote and have not submitted your proxy, or if you want to change your vote, you may do so by clicking on the link provided through the virtual meeting platform. In order to allow stockholders to vote through the virtual meeting platform at any time during this meeting, I declare the polls open for voting. It is now 9:05 A.M. on May 21st, 2026. I now present the matters to be voted upon. Our first item of business is the election of a Director. At this meeting, we will be voting on one nominee for Class II Director to serve for a term of three years. All as set forth in the proxy statement. In accordance with the bylaws, your Directors have nominated Richard Kollender to be elected to serve as a Class II Director. The corporation's bylaws require that a stockholder provide advanced notice to the corporation of a stockholder's intent to nominate persons as Directors. No such notice was received. Accordingly, I declare the nominations for Directors closed. The Board of Directors unanimously recommends that stockholders vote in favor of this proposal. Have we received any questions concerning the proposal? No. The second item of business is the ratification of the appointment of PwC as the corporation's independent registered public accounting firm for the fiscal year ending December 31st, 2026. The audit committee of the Board of Directors, which is comprised entirely of independent directors, has appointed PwC as the corporation's independent registered public accounting firm to audit the corporation's financial statements for the fiscal year ending December 31st, 2026. The Board of Directors has approved the selection of PwC and asked the stockholders to ratify the selection. Stockholder ratification is not required by the corporation's bylaws. The board of directors is submitting this to the stockholders for ratification as a matter of good corporate governance. If the stockholders do not approve the selection of PwC as the corporation's independent registered public accounting firm, the Board of Directors and the Audit Committee will reconsider the appointment. Have we received any questions concerning the proposal? No. Anyone who has not yet voted and desires to do so, please do so now through the virtual meeting platform. It is now 9:07 A.M. on May 21st, 2026, and the polls for each matter to be voted on at this meeting are now closed. No additional ballots, proxies, or votes, and no changes or revocations will be accepted. We have been informed by the Inspector of Election that with regard to Proposal one, a plurality of the shares present or represented and entitled to vote have been voted in favor of the election of the person nominated. With regard to Proposal two, a majority of the shares present or represented and entitled to vote have been voted in favor of the ratification of PwC as the corporation's independent registered accounting firm for the fiscal year ending December 31st, 2026. The final results of voting, including any ballots and proxies recorded during this meeting, will be set forth in the report of the Inspector of Election and will be included in the minutes of the meeting. The final results will also be included in our applicable reports filed with the SEC. At this point, I declare that all the proposals presented at this meeting have been ratified or approved by the stockholders. There being no other matters for consideration at this meeting, I hereby adjourn this meeting. This concludes our meeting. We thank you for your attendance today and for your continued support. Have a great day. That concludes our meeting today. You may now disconnect.

Speaker 1: Good day everyone, and welcome to the 2026 Rapid Micro Biosystems Annual Meeting. Now I'll turn the meeting over to your host, Robert Spignesi, President, Chief Executive Officer, and a Director. Please go ahead, Robert. Good day everyone, and welcome to the 2026 Rapid Micro Biosystems Annual Meeting. good day everyone and welcome to the 2026 rapid micro biosystems annual meeting Now I'll turn the meeting over to your host, Robert Spignesi, President, Chief Executive Officer, and a Director. now i'll turn the meeting over to your host robert spignesi president chief executive officer and a director Please go ahead, Robert. please go ahead robert

Speaker 2: Thank you. Good morning and welcome to the 2026 virtual annual meeting of Rapid Micro Biosystems, Inc. I am Robert Spignesi, President, Chief Executive Officer, and a Director of Rapid Micro Biosystems. It's my pleasure to welcome you here today for this meeting. The meeting is now called to order. This meeting is being held in accordance with the company's bylaws and Delaware law. Our meeting today will take care of the formal business at hand, which is described in our notice and proxy statement, a copy of which was made available on or about April 8th, 2026, to all of our stockholders of record at the close of business on March 31st, 2026. During this portion of the meeting, all discussion will be limited to the official business at hand. Thank you. thank you Good morning and welcome to the 2026 virtual annual meeting of Rapid Micro Biosystems, Inc. I am Robert Spignesi, President, Chief Executive Officer, and a Director of Rapid Micro Biosystems. good morning and welcome to the 2026 virtual annual meeting of rapid micro biosystems inc i am robert spignesi president chief executive officer and a director of rapid micro biosystems It's my pleasure to welcome you here today for this meeting. it's my pleasure to welcome you here today for this meeting The meeting is now called to order. the meeting is now called to order This meeting is being held in accordance with the company's bylaws and Delaware law. this meeting is being held in accordance with the company's bylaws and delaware law Our meeting today will take care of the formal business at hand, which is described in our notice and proxy statement, a copy of which was made available on or about April 8th, 2026, to all of our stockholders of record at the close of business on March 31st, 2026. our meeting today will take care of the formal business at hand which is described in our notice and proxy statement a copy of which was made available on or about april 8th 2026 to all of our stockholders of record at the close of business on march 31st 2026 During this portion of the meeting, all discussion will be limited to the official business at hand. during this portion of the meeting all discussion will be limited to the official business at hand Before proceeding to the formal business, I would like to recognize the directors of the corporation who are here with us today. Dr. Kirk D. Malloy, our Board Chair, who has served as one of our Directors since 2023. Dafni Bika, who has served as one of our directors since 2025. Richard Kollender, who has served as one of our directors since 2009 and is a director nominee who is standing for election today. Melinda Litherland, who has served as one of our directors since 2021. Inese Lowenstein, who has served as one of our directors since 2021. Natale Ricciardi, who has served as one of our directors since 2016 and whose three year term ends at this meeting today. Nat joined the board of directors in March 2016. His experience and guidance have been instrumental in the development of the company. Before proceeding to the formal business, I would like to recognize the directors of the corporation who are here with us today. before proceeding to the formal business i would like to recognize the directors of the corporation who are here with us today Dr. Kirk D. Malloy, our Board Chair, who has served as one of our Directors since 2023. dr kirk d. malloy our board chair who has served as one of our directors since 2023 Dafni Bika, who has served as one of our directors since 2025. dafni bika who has served as one of our directors since 2025 Richard Kollender, who has served as one of our directors since 2009 and is a director nominee who is standing for election today. richard kollender who has served as one of our directors since 2009 and is a director nominee who is standing for election today Melinda Litherland, who has served as one of our directors since 2021. melinda litherland who has served as one of our directors since 2021 Inese Lowenstein, who has served as one of our directors since 2021. inese lowenstein who has served as one of our directors since 2021 Natale Ricciardi, who has served as one of our directors since 2016 and whose three year term ends at this meeting today. natale ricciardi who has served as one of our directors since 2016 and whose three year term ends at this meeting today Nat joined the board of directors in March 2016. nat joined the board of directors in march 2016 His experience and guidance have been instrumental in the development of the company. his experience and guidance have been instrumental in the development of the company I'd like to thank Nat for all he's done for the company and wish him well as he departs from the Board of Directors. I would also like to welcome the members of our executive team, representatives from PricewaterhouseCoopers or PwC, our independent registered public accounting firm, and representatives from Goodwin Procter, our outside counsel. Our Senior Vice President, Legal and Corporate Secretary, James Xu, will act as secretary of the meeting and will take meeting minutes. In addition, the Board of Directors has appointed Sean Wirtjes, our Chief Financial Officer and Treasurer, to act as Inspector of Election for this annual meeting, and he will tabulate the results of the voting. The Inspector of Election is with us today and has signed the oath of his office, which will be filed with the minutes of this meeting. I'd like to thank Nat for all he's done for the company and wish him well as he departs from the Board of Directors. i'd like to thank nat for all he's done for the company and wish him well as he departs from the board of directors I would also like to welcome the members of our executive team, representatives from PricewaterhouseCoopers or PwC, our independent registered public accounting firm, and representatives from Goodwin Procter, our outside counsel. i would also like to welcome the members of our executive team representatives from pricewaterhousecoopers or pwc our independent registered public accounting firm and representatives from goodwin procter our outside counsel Our Senior Vice President, Legal and Corporate Secretary, James Xu, will act as secretary of the meeting and will take meeting minutes. our senior vice president legal and corporate secretary james xu will act as secretary of the meeting and will take meeting minutes In addition, the Board of Directors has appointed Sean Wirtjes, our Chief Financial Officer and Treasurer, to act as Inspector of Election for this annual meeting, and he will tabulate the results of the voting. in addition the board of directors has appointed sean wirtjes our chief financial officer and treasurer to act as inspector of election for this annual meeting and he will tabulate the results of the voting The Inspector of Election is with us today and has signed the oath of his office, which will be filed with the minutes of this meeting. the inspector of election is with us today and has signed the oath of his office which will be filed with the minutes of this meeting We will now proceed to the formal business of the meeting, notice of which was sent to all stockholders of record as of the close of business on March 31st, 2016. Class A common stockholders of record on that date are entitled to vote at this meeting. We electronically posted to the virtual meeting platform a record of stockholders as of that date. A duplicate record has been on file at the principal place of business of the corporation for the last 10 days immediately prior to the date of this meeting, and has been available for inspection by any stockholder during that period at any time during normal business hours. Rules of conduct of the meeting are available on the right-hand side of the screen. We will now proceed to the formal business of the meeting, notice of which was sent to all stockholders of record as of the close of business on March 31st, 2016. we will now proceed to the formal business of the meeting notice of which was sent to all stockholders of record as of the close of business on march 31st 2016 Class A common stockholders of record on that date are entitled to vote at this meeting. class a common stockholders of record on that date are entitled to vote at this meeting We electronically posted to the virtual meeting platform a record of stockholders as of that date. we electronically posted to the virtual meeting platform a record of stockholders as of that date A duplicate record has been on file at the principal place of business of the corporation for the last 10 days immediately prior to the date of this meeting, and has been available for inspection by any stockholder during that period at any time during normal business hours. a duplicate record has been on file at the principal place of business of the corporation for the last 10 days immediately prior to the date of this meeting and has been available for inspection by any stockholder during that period at any time during normal business hours Rules of conduct of the meeting are available on the right-hand side of the screen. rules of conduct of the meeting are available on the right-hand side of the screen Please note that only stockholders who have logged in using their 16-digit control number will be able to vote and ask questions at the meeting. If you have any questions, I encourage you to please submit them now. If any stockholder wishes to address the chair during the formal part of this meeting, please do so by submitting your question in writing through the virtual meeting platform via the link provided. Sean? Please note that only stockholders who have logged in using their 16-digit control number will be able to vote and ask questions at the meeting. please note that only stockholders who have logged in using their 16-digit control number will be able to vote and ask questions at the meeting If you have any questions, I encourage you to please submit them now. if you have any questions i encourage you to please submit them now If any stockholder wishes to address the chair during the formal part of this meeting, please do so by submitting your question in writing through the virtual meeting platform via the link provided. if any stockholder wishes to address the chair during the formal part of this meeting please do so by submitting your question in writing through the virtual meeting platform via the link provided Sean? sean

Speaker 3: 1,267,511 shares of Class A common stock entitled to vote at the meeting. A majority of shares are represented either in person or by proxy, and therefore a quorum is present. 1,267,511 shares of Class A common stock entitled to vote at the meeting. 1,267,511 shares of class a common stock entitled to vote at the meeting A majority of shares are represented either in person or by proxy, and therefore a quorum is present. a majority of shares are represented either in person or by proxy and therefore a quorum is present

Speaker 2: Thank you. I declare that a quorum is present. We may now proceed to transact the business for which this meeting has been called. Let me briefly describe the voting procedures. If you have previously turned in your proxy and you do not intend to change your vote, you do not need to complete another proxy or ballot. Your vote will be counted. If you are eligible to vote and have not submitted your proxy, or if you want to change your vote, you may do so by clicking on the link provided through the virtual meeting platform. In order to allow stockholders to vote through the virtual meeting platform at any time during this meeting, I declare the polls open for voting. It is now 9:05 A.M. on May 21st, 2026. I now present the matters to be voted upon. Thank you. thank you I declare that a quorum is present. i declare that a quorum is present We may now proceed to transact the business for which this meeting has been called. we may now proceed to transact the business for which this meeting has been called Let me briefly describe the voting procedures. let me briefly describe the voting procedures If you have previously turned in your proxy and you do not intend to change your vote, you do not need to complete another proxy or ballot. if you have previously turned in your proxy and you do not intend to change your vote you do not need to complete another proxy or ballot Your vote will be counted. your vote will be counted If you are eligible to vote and have not submitted your proxy, or if you want to change your vote, you may do so by clicking on the link provided through the virtual meeting platform. if you are eligible to vote and have not submitted your proxy or if you want to change your vote you may do so by clicking on the link provided through the virtual meeting platform In order to allow stockholders to vote through the virtual meeting platform at any time during this meeting, I declare the polls open for voting. in order to allow stockholders to vote through the virtual meeting platform at any time during this meeting i declare the polls open for voting It is now 9:05 A.M. on May 21st, 2026. it is now 9:05 a.m on may 21st 2026 I now present the matters to be voted upon. i now present the matters to be voted upon Our first item of business is the election of a Director. At this meeting, we will be voting on one nominee for Class II Director to serve for a term of three years. All as set forth in the proxy statement. In accordance with the bylaws, your Directors have nominated Richard Kollender to be elected to serve as a Class II Director. The corporation's bylaws require that a stockholder provide advanced notice to the corporation of a stockholder's intent to nominate persons as Directors. No such notice was received. Accordingly, I declare the nominations for Directors closed. The Board of Directors unanimously recommends that stockholders vote in favor of this proposal. Have we received any questions concerning the proposal? Our first item of business is the election of a Director. our first item of business is the election of a director At this meeting, we will be voting on one nominee for Class II Director to serve for a term of three years. at this meeting we will be voting on one nominee for class ii director to serve for a term of three years All as set forth in the proxy statement. all as set forth in the proxy statement In accordance with the bylaws, your Directors have nominated Richard Kollender to be elected to serve as a Class II Director. in accordance with the bylaws your directors have nominated richard kollender to be elected to serve as a class ii director The corporation's bylaws require that a stockholder provide advanced notice to the corporation of a stockholder's intent to nominate persons as Directors. the corporation's bylaws require that a stockholder provide advanced notice to the corporation of a stockholder's intent to nominate persons as directors No such notice was received. no such notice was received Accordingly, I declare the nominations for Directors closed. accordingly i declare the nominations for directors closed The Board of Directors unanimously recommends that stockholders vote in favor of this proposal. the board of directors unanimously recommends that stockholders vote in favor of this proposal Have we received any questions concerning the proposal? have we received any questions concerning the proposal

Speaker 1: No. No. no

Speaker 2: The second item of business is the ratification of the appointment of PwC as the corporation's independent registered public accounting firm for the fiscal year ending December 31st, 2026. The audit committee of the Board of Directors, which is comprised entirely of independent directors, has appointed PwC as the corporation's independent registered public accounting firm to audit the corporation's financial statements for the fiscal year ending December 31st, 2026. The Board of Directors has approved the selection of PwC and asked the stockholders to ratify the selection. Stockholder ratification is not required by the corporation's bylaws. The board of directors is submitting this to the stockholders for ratification as a matter of good corporate governance. If the stockholders do not approve the selection of PwC as the corporation's independent registered public accounting firm, the Board of Directors and the Audit Committee will reconsider the appointment. The second item of business is the ratification of the appointment of PwC as the corporation's independent registered public accounting firm for the fiscal year ending December 31st, 2026. the second item of business is the ratification of the appointment of pwc as the corporation's independent registered public accounting firm for the fiscal year ending december 31st 2026 The audit committee of the Board of Directors, which is comprised entirely of independent directors, has appointed PwC as the corporation's independent registered public accounting firm to audit the corporation's financial statements for the fiscal year ending December 31st, 2026. The Board of Directors has approved the selection of PwC and asked the stockholders to ratify the selection. the audit committee of the board of directors which is comprised entirely of independent directors has appointed pwc as the corporation's independent registered public accounting firm to audit the corporation's financial statements for the fiscal year ending december 31st 2026. the board of directors has approved the selection of pwc and asked the stockholders to ratify the selection Stockholder ratification is not required by the corporation's bylaws. stockholder ratification is not required by the corporation's bylaws The board of directors is submitting this to the stockholders for ratification as a matter of good corporate governance. the board of directors is submitting this to the stockholders for ratification as a matter of good corporate governance If the stockholders do not approve the selection of PwC as the corporation's independent registered public accounting firm, the Board of Directors and the Audit Committee will reconsider the appointment. if the stockholders do not approve the selection of pwc as the corporation's independent registered public accounting firm the board of directors and the audit committee will reconsider the appointment Have we received any questions concerning the proposal? Have we received any questions concerning the proposal? have we received any questions concerning the proposal

Speaker 1: No. No. no

Speaker 2: Anyone who has not yet voted and desires to do so, please do so now through the virtual meeting platform. It is now 9:07 A.M. on May 21st, 2026, and the polls for each matter to be voted on at this meeting are now closed. No additional ballots, proxies, or votes, and no changes or revocations will be accepted. We have been informed by the Inspector of Election that with regard to Proposal one, a plurality of the shares present or represented and entitled to vote have been voted in favor of the election of the person nominated. With regard to Proposal two, a majority of the shares present or represented and entitled to vote have been voted in favor of the ratification of PwC as the corporation's independent registered accounting firm for the fiscal year ending December 31st, 2026. Anyone who has not yet voted and desires to do so, please do so now through the virtual meeting platform. anyone who has not yet voted and desires to do so please do so now through the virtual meeting platform It is now 9:07 A.M. on May 21st, 2026, and the polls for each matter to be voted on at this meeting are now closed. it is now 9:07 a.m on may 21st 2026 and the polls for each matter to be voted on at this meeting are now closed No additional ballots, proxies, or votes, and no changes or revocations will be accepted. no additional ballots proxies or votes and no changes or revocations will be accepted We have been informed by the Inspector of Election that with regard to Proposal one, a plurality of the shares present or represented and entitled to vote have been voted in favor of the election of the person nominated. we have been informed by the inspector of election that with regard to proposal one a plurality of the shares present or represented and entitled to vote have been voted in favor of the election of the person nominated With regard to Proposal two, a majority of the shares present or represented and entitled to vote have been voted in favor of the ratification of PwC as the corporation's independent registered accounting firm for the fiscal year ending December 31st, 2026. with regard to proposal two a majority of the shares present or represented and entitled to vote have been voted in favor of the ratification of pwc as the corporation's independent registered accounting firm for the fiscal year ending december 31st 2026 The final results of voting, including any ballots and proxies recorded during this meeting, will be set forth in the report of the Inspector of Election and will be included in the minutes of the meeting. The final results will also be included in our applicable reports filed with the SEC. At this point, I declare that all the proposals presented at this meeting have been ratified or approved by the stockholders. There being no other matters for consideration at this meeting, I hereby adjourn this meeting. This concludes our meeting. We thank you for your attendance today and for your continued support. Have a great day. The final results of voting, including any ballots and proxies recorded during this meeting, will be set forth in the report of the Inspector of Election and will be included in the minutes of the meeting. the final results of voting including any ballots and proxies recorded during this meeting will be set forth in the report of the inspector of election and will be included in the minutes of the meeting The final results will also be included in our applicable reports filed with the SEC. the final results will also be included in our applicable reports filed with the sec At this point, I declare that all the proposals presented at this meeting have been ratified or approved by the stockholders. at this point i declare that all the proposals presented at this meeting have been ratified or approved by the stockholders There being no other matters for consideration at this meeting, I hereby adjourn this meeting. there being no other matters for consideration at this meeting i hereby adjourn this meeting This concludes our meeting. this concludes our meeting We thank you for your attendance today and for your continued support. we thank you for your attendance today and for your continued support Have a great day. have a great day

Speaker 1: That concludes our meeting today. You may now disconnect. That concludes our meeting today. that concludes our meeting today You may now disconnect. you may now disconnect