Insider Transactions Reported by 21 Insiders of Prime Medicine, Inc.

Symbol
PRME on Nasdaq
Location
Cambridge, MA

Insiders trading volume in the past year

Prime Medicine, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
GV 2019 GP, L.L.C. 10%+ Owner $177,594,643 20 Jun 2023
FMR LLC Other* $126,699,612 24 Oct 2022
Robert Nelsen Director, 10%+ Owner $73,946,120 +$9,999,990 +16% 01 Aug 2025
ARCH Venture Partners X, LLC 10%+ Owner $73,876,172 +$9,999,990 +16% 01 Aug 2025
ARCH Venture Partners XII, LLC 10%+ Owner $73,876,172 +$9,999,990 +16% 01 Aug 2025
David R. Liu 10%+ Owner $50,920,145 +$163,017 +0.32% 30 Jun 2025
GV 2023 GP, L.L.C. Member of 10% Group $20,000,000 20 Feb 2024
Keith Michael Gottesdiener Exhibit 24 - Power of Attorney; Title: President and Chief Executive Officer, Director $19,020,856 08 May 2025
GV 2021 GP, L.L.C. 10%+ Owner $10,766,052 +$4,950,000 +85% 01 Aug 2025
Allan Reine Chief Executive Officer, Director $147,150 +$147,150 26 Feb 2026
Ann L. Lee Chief Technical Officer $112,999 +$113,000 23 Feb 2026
Richard Brudnick Chief Business Officer $23,790 +$23,790 20 May 2025
Jeremy Duffield Chief Scientific Officer 27 Feb 2025
Meredith Goldwasser SVP, Strategy & Corporate Ops. 27 Feb 2025
David P. Schenkein Director 01 Aug 2025
Jeffrey D. Marrazzo Director 01 Aug 2025
Michael Aaron Kelly Director 01 Aug 2025
I. Foster Cheek Director 01 Aug 2025
Carman Alenson SVP, Finance and Chief Accounting Officer 23 Feb 2026
Wendy Chung Director 01 Aug 2025
Thomas Cahill Director 01 Aug 2025

Recent Insider Transactions by Companies or Individuals for Prime Medicine, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Allan Reine PRME Stock Option (right to buy) Award 1,300,000 1,300,000 26 Feb 2026 Direct
Ann L. Lee PRME Stock Option (right to buy) Award 375,000 375,000 23 Feb 2026 Direct
Carman Alenson PRME Stock Option (right to buy) Award 140,000 140,000 23 Feb 2026 Direct
Ann L. Lee PRME Stock Option (right to buy) Award 361,990 180,995 01 Aug 2025 Direct
Ann L. Lee PRME Stock Option (right to buy) Disposed to Issuer -100% -361,990 0 01 Aug 2025 Direct
David P. Schenkein PRME Stock Option (right to buy) Award 84,062 45,000 01 Aug 2025 Direct
David P. Schenkein PRME Stock Option (right to buy) Disposed to Issuer -100% -84,062 0 01 Aug 2025 Direct
Robert Nelsen PRME Stock Option (right to buy) Award 84,062 45,000 01 Aug 2025 Direct
Robert Nelsen PRME Stock Option (right to buy) Disposed to Issuer -100% -84,062 0 01 Aug 2025 Direct
Jeffrey D. Marrazzo PRME Stock Option (right to buy) Award 387,000 250,000 01 Aug 2025 Direct
Jeffrey D. Marrazzo PRME Stock Option (right to buy) Disposed to Issuer -100% -387,000 0 01 Aug 2025 Direct
Michael Aaron Kelly PRME Stock Option (right to buy) Award 106,578 45,000 01 Aug 2025 Direct
Michael Aaron Kelly PRME Stock Option (right to buy) Disposed to Issuer -100% -106,578 0 01 Aug 2025 Direct
I. Foster Cheek PRME Stock Option (right to buy) Award 106,578 45,000 01 Aug 2025 Direct
I. Foster Cheek PRME Stock Option (right to buy) Disposed to Issuer -100% -106,578 0 01 Aug 2025 Direct
Wendy Chung PRME Stock Option (right to buy) Award 106,578 45,000 01 Aug 2025 Direct
Wendy Chung PRME Stock Option (right to buy) Disposed to Issuer -100% -106,578 0 01 Aug 2025 Direct
Thomas Cahill PRME Stock Option (right to buy) Award 84,062 45,000 01 Aug 2025 Direct
Thomas Cahill PRME Stock Option (right to buy) Disposed to Issuer -100% -84,062 0 01 Aug 2025 Direct
Allan Reine PRME Stock Option (right to buy) Award 850,000 850,000 01 Aug 2025 Direct
Allan Reine PRME Stock Option (right to buy) Disposed to Issuer -100% -850,000 0 01 Aug 2025 Direct
Carman Alenson PRME Stock Option (right to buy) Award 203,333 90,498 01 Aug 2025 Direct
Carman Alenson PRME Stock Option (right to buy) Disposed to Issuer -100% -203,333 0 01 Aug 2025 Direct
GV 2021 GP, L.L.C. PRME Common Stock Purchase 85.1% $4,950,000 $3.30 1,500,000 3,262,440 01 Aug 2025 By GV 2021, L.P.
Robert Nelsen PRME Common Stock Purchase 94.7% $9,999,990 $3.30 3,030,300 6,230,300 01 Aug 2025 By ARCH Venture Fund XII, L.P.
ARCH Venture Partners XII, LLC PRME Common Stock Purchase 94.7% $9,999,990 $3.30 3,030,300 6,230,300 01 Aug 2025 By ARCH Venture Fund XII, L.P.
ARCH Venture Partners X, LLC PRME Common Stock Purchase 94.7% $9,999,990 $3.30 3,030,300 6,230,300 01 Aug 2025 By ARCH Venture Fund XII, L.P.
David R. Liu PRME Common Stock Purchase 0.1% $52,830 $2.52 21,000 20,240,945 30 Jun 2025 Direct
David R. Liu PRME Common Stock Purchase 0.1% $45,402 $2.16 21,000 20,219,945 23 Jun 2025 Direct
David R. Liu PRME Common Stock Purchase 0.1% $31,196 $1.49 21,000 20,198,945 16 Jun 2025 Direct
David R. Liu PRME Common Stock Purchase 0.1% $33,590 $1.60 21,000 20,177,945 11 Jun 2025 Direct
David P. Schenkein PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Jeffrey D. Marrazzo PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Robert Nelsen PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Michael Aaron Kelly PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
I. Foster Cheek PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Wendy Chung PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Thomas Cahill PRME Stock Option (right to buy) Award 55,000 55,000 04 Jun 2025 Direct
Ann L. Lee PRME Common Stock Purchase $113,000 $1.13 100,000 100,000 21 May 2025 Direct
Allan Reine PRME Common Stock Purchase $147,150 $1.18 125,000 125,000 21 May 2025 Direct
Richard Brudnick PRME Common Stock Purchase $23,790 $1.19 20,000 20,000 20 May 2025 Direct
Jeffrey D. Marrazzo PRME Stock Option (right to buy) Award 800,000 800,000 19 May 2025 Direct
Allan Reine PRME Stock Option (right to buy) Award 2,000,000 2,000,000 19 May 2025 Direct
Allan Reine PRME Stock Option (right to buy) Award 9.68% 75,000 850,000 08 May 2025 Direct
Keith Michael Gottesdiener PRME Stock Option (right to buy) Award 50% 100,000 300,000 08 May 2025 Direct
Ann L. Lee PRME Stock Option (right to buy) Award 50% 80,416 241,248 08 May 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.