TECTONIC THERAPEUTIC INC

Ticker: TECX CUSIP: 878972108 Class: Common Stock

FMR LLC's Holding History (CIK: 0000315066)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,807,442 Value ($000) $58,563 Avg Close $18.58 Range $14.60 - $26.00

Q3 2025

Shares 2,806,781 Value ($000) $44,038 Avg Close $20.64 Range $14.39 - $27.33

Q2 2025

Shares 2,800,876 Value ($000) $55,653 Avg Close $20.27 Range $13.70 - $25.75

Q1 2025

Shares 2,799,400 Value ($000) $49,577 Avg Close $32.59 Range $15.30 - $61.07

Q4 2024

Shares 1,516,335 Value ($000) $70,009 Avg Close $42.29 Range $27.21 - $53.41

Q3 2024

Shares 1,220,138 Value ($000) $36,970 Avg Close $18.28 Range $15.08 - $31.66

Q2 2024

Shares 1,077,538 Value ($000) $17,747 Avg Close $15.77 Range $1.40 - $18.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,807,442	$58,563	$18.58	$14.60 - $26.00
Q3 2025	2,806,781	$44,038	$20.64	$14.39 - $27.33
Q2 2025	2,800,876	$55,653	$20.27	$13.70 - $25.75
Q1 2025	2,799,400	$49,577	$32.59	$15.30 - $61.07
Q4 2024	1,516,335	$70,009	$42.29	$27.21 - $53.41
Q3 2024	1,220,138	$36,970	$18.28	$15.08 - $31.66
Q2 2024	1,077,538	$17,747	$15.77	$1.40 - $18.48