Robert Nelsen - 05 Jun 2026 Form 4 Insider Report for Prime Medicine, Inc. (PRME)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: PRME
Reported as of: 05 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 08 Jun 2026, 16:19:02 UTC
Prior SEC filing: 05 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Ryan Brown, attorney-in-fact

Key filing fact

Robert Nelsen filed Form 4 for Prime Medicine, Inc. (PRME) on 08 Jun 2026.

Key facts

This page summarizes Robert Nelsen's Form 4 filing for Prime Medicine, Inc. (PRME).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 08 Jun 2026, 16:19.

Change

Previous filing in this sequence was filed on 05 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001219042 Primary reporting owner

NELSEN ROBERT

Relationship: Director, 10%+ Owner
Address: 8755 WEST HIGGINS ROAD, SUITE 1025, CHICAGO
Signature: /s/ Ryan Brown, attorney-in-fact
Signature date: 08 Jun 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PRME transaction Derivative

Stock Option (right to buy)

Award

Transaction value
Shares: +75,000
Change %
Price: $0.000000^*
Shares after: 75,000
Date: 05 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 75,000
Exercise price: $3.06
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The shares subject to this option shall vest in full upon the earlier of (i) June 5, 2027 or (ii) the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service to the Issuer through such vesting date.