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PRME · Current Report (Form 8-K) · Filed June 8, 2026

Prime Medicine Inc — Current Report (Form 8-K)

Form
8-K
Filed
June 8, 2026
Period
Jun 5, 2026
Ticker
PRME
Accession
0001628280-26-041543
Boardroom Alpha · Filing insights

Michael Kelly and David Schenkein elected as Class I directors; PwC ratified as 2026 auditor.

About Prime Medicine Inc
Market cap
$660M
1Y TSR
−11.6%
3Y TSR
−36.7%
Board grade
D
Sector
Healthcare
CEO
Allan Reine
Last annual meeting: Jun 5, 2026 · View full Prime Medicine Inc profile →
prme-20260605

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
___________________________________
FORM 8-K
___________________________________
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

June 5, 2026
Date of Report (date of earliest event reported)
___________________________________
Prime Medicine, Inc.
(Exact name of registrant as specified in its charter)
___________________________________
Delaware
001-41536
84-3097762
(State or other jurisdiction of incorporation)
(Commission File Number)
(I.R.S. Employer Identification No.)
60 First Street
Cambridge, MA
02141
(Address of principal executive offices)
(Zip code)
(617) 465-0013
(Registrant's telephone number, including area code)
(Former name or former address, if changed since last report)
___________________________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Trading symbol(s)
Name of each exchange on which registered
Common stock, par value $.00001 per share
PRME
The Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule12b-2 of the Securities Exchange Act of 1934 (§250.12b-2 of this chapter).
Emerging growth company    ☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐



Item 5.07. Submission of Matters to a Vote of Security Holders.
On June 5, 2026, Prime Medicine, Inc. (the “Company”) held its 2026 annual meeting of stockholders (the “Annual Meeting”) in a virtual meeting format via live webcast. Proxies were solicited pursuant to the Company’s definitive proxy statement (the “Proxy Statement”) filed on April 23, 2026 with the Securities and Exchange Commission under Section 14(a) of the Securities Exchange Act of 1934, as amended. As of the close of business on April 9, 2026, the record date for the Annual Meeting, the number of shares of the Company’s common stock, $0.00001 par value per share (“Common Stock”), outstanding and entitled to vote at the Annual Meeting was 180,615,889. The number of shares of Common Stock present in person or by remote communication, if applicable, or represented by valid proxy at the Annual Meeting was 140,384,724, thus establishing a quorum for the transaction of business at the Annual Meeting. Shares present virtually during the Annual Meeting were considered shares of Common Stock represented in person at the Annual Meeting. Each share of Common Stock was entitled to one vote with respect to matters submitted to the Company’s stockholders at the Annual Meeting.
At the Annual Meeting, the Company’s stockholders voted on the following matters, all of which were described in the Proxy Statement: (i) to elect Michael Kelly and David Schenkein, M.D. as Class I Directors, each to serve until the Company’s 2029 annual meeting of stockholders, and until his respective successor shall have been duly elected and qualified, or until his earlier death, resignation or removal (“Proposal 1”) and (ii) to ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 (“Proposal 2”). The final voting results are set forth below.
Proposal 1 – Each of the following nominees was elected as a Class I Director to serve until the Company’s 2029 annual meeting of stockholders, and until his respective successor shall have been duly elected and qualified, or until his earlier death, resignation or removal, based on the following votes:
Class I Director Nominee
For
Withheld
Broker Non-Votes
Michael Kelly
107,059,058
3,047,945
30,277,721
David Schenkein, M.D.
87,522,409
22,584,594
30,277,721
Proposal 2 – The appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified, based on the following votes:
For
Against
Abstentions
139,989,201
101,259
294,264




SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 8, 2026
Prime Medicine, Inc.
By:
/s/ Allan Reine
Name:
Allan Reine, M.D.
Title:
Chief Executive Officer

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Reference

Frequently asked questions

When did Prime Medicine Inc file this 8-K?
Prime Medicine Inc (PRME) filed this Current Report (Form 8-K) with the SEC on June 8, 2026. The accession number assigned by EDGAR is 0001628280-26-041543.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Michael Kelly and David Schenkein elected as Class I directors; PwC ratified as 2026 auditor. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Prime Medicine Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Prime Medicine Inc has filed under CIK 1894562, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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