Michael Thomas Henderson - 16 Apr 2026 Form 4 Insider Report for Apogee Therapeutics, Inc. (APGE)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: APGE
Reported as of: 16 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Apr 2026, 16:05:28 UTC
Prior SEC filing: 10 Apr 2026
Next SEC filing: 08 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Matthew Batters, as attorney-in-fact for Michael Henderson

Key filing fact

Michael Thomas Henderson filed Form 4 for Apogee Therapeutics, Inc. (APGE) on 20 Apr 2026.

Key facts

This page summarizes Michael Thomas Henderson's Form 4 filing for Apogee Therapeutics, Inc. (APGE).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 20 Apr 2026, 16:05.

Change

Previous filing in this sequence was filed on 10 Apr 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 0001779990 Primary reporting owner

HENDERSON MICHAEL THOMAS

Relationship: Chief Executive Officer, Director
Address: C/O APOGEE THERAPEUTICS, INC., 221 CRESCENT ST., BLDG. 17, STE. 102B, WALTHAM
Signature: /s/ Matthew Batters, as attorney-in-fact for Michael Henderson
Signature date: 20 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

APGE transaction

Common Stock

Options Exercise

Transaction value
Shares: +3,000
Change %: +0.26%
Price: $22.86^*
Shares after: 1,135,987
Date: 16 Apr 2026
Ownership: Direct

Reported derivative securities

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

APGE transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -3,000
Change %: -0.77%
Price: $0.000000^*
Shares after: 387,012
Date: 16 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,000
Exercise price: $22.86
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

This option represents the right to purchase 398,512 shares of the Issuer's common stock, which will vest in forty-eight equal monthly installments over a four-year period from the date of grant, subject to the Reporting Person's continued service to the Issuer.