Timothy A. Springer - 07 Apr 2025 Form 4 Insider Report for Tectonic Therapeutic, Inc. (TECX)

Role: Director, 10%+ Owner
Signature: /s/ Daniel Lochner, Attorney-in-Fact
Issuer symbol: TECX
Transactions as of: 07 Apr 2025
Net transactions value: +$8,550,000
Form type: 4
Filing time: 09 Apr 2025, 17:38:10 UTC
Previous filing: 20 Mar 2025
Next filing: 11 Apr 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TECX	Common Stock	Purchase	$1,496,250	+87,500	+2.1%	$17.10	4,313,558	07 Apr 2025	Direct
transaction	TECX	Common Stock	Purchase	$7,053,750	+412,500	+43%	$17.10	1,382,723	07 Apr 2025	By LLC	F1
holding	TECX	Common Stock						186,134	07 Apr 2025	By Spouse

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These shares are held by TAS Partners LLC ("TAS"). The Reporting Person is the sole managing member of TAS and, as such, has sole voting and dispositive power over the shares held by TAS. The Reporting Person disclaims beneficial ownership of the shares held by TAS except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

Content

These shares are held by TAS Partners LLC ("TAS"). The Reporting Person is the sole managing member of TAS and, as such, has sole voting and dispositive power over the shares held by TAS. The Reporting Person disclaims beneficial ownership of the shares held by TAS except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.