TECTONIC THERAPEUTIC, INC.TECX— Latest position per institution from SEC 13F filings
15
Institutional holders
15.78M
Total shares held
459.83M
Estimated value
788.83K
Avg. position size
FMR LLC
CIK 315066
Shares
2.82M
Value
87.06M
Filed
Mar 31, 2026
DEEP TRACK CAPITAL, LP
CIK 1856083
Shares
1.40M
Value
27.86M
Filed
Jun 30, 2025
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
1.20M
Value
37.24M
Filed
Mar 31, 2026
ABERDEEN GROUP PLC
CIK 1716774
Shares
1.14M
Value
35.29M
Filed
Mar 31, 2026
VIDA VENTURES ADVISORS, LLC
CIK 1831423
Shares
1.03M
Value
47.49M
Filed
Dec 31, 2024
ECOR1 CAPITAL, LLC
CIK 1587114
Shares
935.12K
Value
18.58M
Filed
Jun 30, 2025
BLACKROCK, INC.
CIK 2012383
Shares
860.35K
Value
26.59M
Filed
Mar 31, 2026
BRAIDWELL LP
CIK 1920938
Shares
847.15K
Value
26.19M
Filed
Mar 31, 2026
FIRST LIGHT ASSET MANAGEMENT, LLC
CIK 1600004
Shares
647.74K
Value
20.02M
Filed
Mar 31, 2026
FARALLON CAPITAL MANAGEMENT LLC
CIK 909661
Shares
640K
Value
10.04M
Filed
Sep 30, 2025
BAKER BROS. ADVISORS LP
CIK 1263508
Shares
607.79K
Value
18.79M
Filed
Mar 31, 2026
5AM VENTURE MANAGEMENT, LLC
CIK 1799883
Shares
606.66K
Value
18.75M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
599.90K
Value
12.51M
Filed
Dec 31, 2025
PARADIGM BIOCAPITAL ADVISORS LP
CIK 1855655
Shares
485.11K
Value
22.40M
Filed
Dec 31, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
473.53K
Value
14.64M
Filed
Mar 31, 2026
VESTAL POINT CAPITAL, LP
CIK 1974915
Shares
328K
Value
10.14M
Filed
Mar 31, 2026
BOLLARD GROUP LLC
CIK 1556218
Shares
302.95K
Value
9.36K
Filed
Mar 31, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
293.48K
Value
9.07M
Filed
Mar 31, 2026
KENNEDY CAPITAL MANAGEMENT LLC
CIK 884589
Shares
286.68K
Value
8.86M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
268.27K
Value
8.29M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 2.82M | 87.06M | Mar 31, 2026 |
| 2 | DEEP TRACK CAPITAL, LP | 1856083 | 1.40M | 27.86M | Jun 30, 2025 |
| 3 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 1.20M | 37.24M | Mar 31, 2026 |
| 4 | ABERDEEN GROUP PLC | 1716774 | 1.14M | 35.29M | Mar 31, 2026 |
| 5 | VIDA VENTURES ADVISORS, LLC | 1831423 | 1.03M | 47.49M | Dec 31, 2024 |
| 6 | ECOR1 CAPITAL, LLC | 1587114 | 935.12K | 18.58M | Jun 30, 2025 |
| 7 | BLACKROCK, INC. | 2012383 | 860.35K | 26.59M | Mar 31, 2026 |
| 8 | BRAIDWELL LP | 1920938 | 847.15K | 26.19M | Mar 31, 2026 |
| 9 | FIRST LIGHT ASSET MANAGEMENT, LLC | 1600004 | 647.74K | 20.02M | Mar 31, 2026 |
| 10 | FARALLON CAPITAL MANAGEMENT LLC | 909661 | 640K | 10.04M | Sep 30, 2025 |
| 11 | BAKER BROS. ADVISORS LP | 1263508 | 607.79K | 18.79M | Mar 31, 2026 |
| 12 | 5AM VENTURE MANAGEMENT, LLC | 1799883 | 606.66K | 18.75M | Mar 31, 2026 |
| 13 | VANGUARD GROUP INC | 102909 | 599.90K | 12.51M | Dec 31, 2025 |
| 14 | PARADIGM BIOCAPITAL ADVISORS LP | 1855655 | 485.11K | 22.40M | Dec 31, 2024 |
| 15 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 473.53K | 14.64M | Mar 31, 2026 |
| 16 | VESTAL POINT CAPITAL, LP | 1974915 | 328K | 10.14M | Mar 31, 2026 |
| 17 | BOLLARD GROUP LLC | 1556218 | 302.95K | 9.36K | Mar 31, 2026 |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 293.48K | 9.07M | Mar 31, 2026 |
| 19 | KENNEDY CAPITAL MANAGEMENT LLC | 884589 | 286.68K | 8.86M | Mar 31, 2026 |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 268.27K | 8.29M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.