Daniel Lochner - 11 Jun 2026 Form 4 Insider Report for Tectonic Therapeutic, Inc. (TECX)

Reporting relationship: Chief Financial Officer
Issuer ticker: TECX
Reported as of: 11 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Jun 2026, 16:30:38 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Daniel Lochner

Key filing fact

Daniel Lochner filed Form 4 for Tectonic Therapeutic, Inc. (TECX) on 12 Jun 2026.

Key facts

This page summarizes Daniel Lochner's Form 4 filing for Tectonic Therapeutic, Inc. (TECX).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 12 Jun 2026, 16:30.

Change

Previous filing in this sequence was filed on 05 Mar 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 0001791187 Primary reporting owner

Lochner Daniel

Relationship: Chief Financial Officer
Address: C/O TECTONIC THERAPEUTIC, INC., 490 ARSENAL WAY, SUITE 200, WATERTOWN
Signature: /s/ Daniel Lochner
Signature date: 12 Jun 2026

Reported derivative securities

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

TECX transaction Derivative

Performance Stock Option (Right to Buy)

Award

Transaction value
Shares: +7,500
Change %
Price: $0.000000^*
Shares after: 7,500
Date: 11 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 7,500
Exercise price: $16.80
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents the number of shares earned under a performance-based stock option award based on the Issuer's satisfaction of certain performance criteria. In light of the performance-based conditions of the option award, the option was not reportable under Section 16 until the performance conditions were certified by the Issuer's Board of Directors, which occurred on June 11, 2026. The option reported on this form represents 50% of the total number of shares underlying the performance option subject to the option award. The remaining 50% of the shares will be earned upon the satisfaction of additional performance criteria.

Footnote F2

The shares underlying the option are fully vested and immediately exercisable as of June 1, 2026.