FMR LLC

Position in TECX — Tectonic Therapeutic, Inc.

CIK 315066 BOSTON, MA

Position in TECX

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$97,308,394

+$10,250,565 QoQ

Shares Held

2,830,378

+0.5% QoQ

Ownership

14.5%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

of 122 holders

Holding Since

Jun 2024

9 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

FMR LLC holds $61,424,667,385 across 370 Biotechnology names. TECX ranks #95 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ARGX	Argenx SE	5,231,452	$4,853,584,218
2	ALNY	Alnylam Pharmaceuticals, Inc.	15,023,962	$4,522,663,276
3	MRNA	Moderna, Inc.	51,859,891	$3,631,748,165
4	ROIV	Roivant Sciences Ltd.	81,020,390	$2,867,311,601
5	RVMD	Revolution Medicines, Inc.	12,200,422	$2,284,895,029
6	IONS	Ionis Pharmaceuticals Inc	24,631,956	$1,953,067,789
7	INSM	INSMED Inc	16,143,583	$1,721,228,815
8	KRYS	Krystal Biotech, Inc.	4,418,197	$1,642,111,277

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$97,308,394	2,830,378	+0.5%	Shares	Defined	2026-08-13
2026-03-31	$87,057,829	2,816,494	+0.3%	Shares	Defined	2026-05-15
2025-12-31	$58,563,238	2,807,442	+0.0%	Shares	Defined	2026-02-17
2025-09-30	$44,038,392	2,806,781	+0.2%	Shares	Defined	2025-11-13
2025-06-30	$55,653,405	2,800,876	+0.1%	Shares	Defined	2025-08-14
2025-03-31	$49,577,372	2,799,400	+84.6%	Shares	Defined	2025-05-12
2024-12-31	$70,009,186	1,516,335	+24.3%	Shares	Defined	2025-02-13
2024-09-30	$36,970,181	1,220,138	+13.2%	Shares	Defined	2024-11-13
2024-06-30	$17,747,050	1,077,538	—	Shares	Defined	2024-08-13
No filing history on record for this holder in this stock.