EcoR1 Capital, LLC

13F Holdings History for Tectonic Therapeutic, Inc. - Common Stock (TECX)

Symbol: TECX on Nasdaq
Investment type: Equity / Common Stock
Latest Disclosed Ownership: 935K shares
Security Ownership: 5%

Shares, Excluding Options vs Price

Value, Excluding Options

EcoR1 Capital, LLC ownership in Tectonic Therapeutic, Inc. Common Stock (TECX)

2025-05-15 - EcoR1 Capital, LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 935K shares of Tectonic Therapeutic, Inc. Common Stock (TECX). This represents 5% percent ownership of the company.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
EcoR1 Capital, LLC	5%		$15.6M	935K			$16.68	13G/A	3/31/2025	15 May 2025 14:24:51

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	1.1%		$18.6M	935K			$19.87	Q2 2025
3/31/2025	0.98%	+0.09%	$16.6M	935K	+85,978		$17.71	Q1 2025
12/31/2024	1.57%		$39.2M	849K			$46.17	Q4 2024
9/30/2024	0.88%		$25.7M	849K			$30.30	Q3 2024
6/30/2024	0.43%	+0.36%	$14M	849K	+849,143	NEW	$16.47	Q2 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.