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Equibles

TECX

Tectonic Therapeutic, Inc.
$37.93 +5.19 (+15.85%) At close · Jul 2
Market Cap
$715.71M
Shares
18,869,186

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 112
Total Value: $438,042,395
Total Shares: 14,171,544
Showing 1–100 of 115 holdings by value · page 1 of 2

Institutional Ownership Trend

9 quarters

Holder Concentration

Across 112 13F filers
Top Holder
19.9%
Jun 2024 → Mar 2026 · range 17.0% – 24.9%
of institutional value
Top 5
48.5%
Jun 2024 → Mar 2026 · range 45.0% – 64.9%
of institutional value
Top 10
67.3%
Jun 2024 → Mar 2026 · range 60.9% – 86.3%
of institutional value
HHI
715
Jun 2024 → Mar 2026 · range 681 – 1,075
Broadly held
Showing 100 of 115
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega FMR LLC $87,057,829 19.87% 2,816,494
Mid TCG Crossover Management, LLC $37,243,180 8.50% 1,204,891
Large Aberdeen Group plc $35,293,779 8.06% 1,141,824
Mega BlackRock, Inc. $26,593,475 6.07% 860,352
Mid BRAIDWELL LP $26,185,437 5.98% 847,151
Mid First Light Asset Management, LLC $20,021,736 4.57% 647,743
Large BAKER BROS. ADVISORS LP $18,786,727 4.29% 607,788
Small 5AM Venture Management, LLC $18,751,860 4.28% 606,660
Mega VANGUARD CAPITAL MANAGEMENT LLC $14,636,874 3.34% 473,532
Mid Vestal Point Capital, LP $10,138,480 2.31% 328,000
Mid Bollard Group LLC $9,364,277 2.14% 302,953
Mid KENNEDY CAPITAL MANAGEMENT LLC $8,861,340 2.02% 286,682
Mega GEODE CAPITAL MANAGEMENT, LLC $8,292,317 1.89% 268,273
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $7,943,870 1.81% 257,000
Large MARSHALL WACE, LLP $7,096,780 1.62% 229,595
Mid ORBIMED ADVISORS LLC $7,004,206 1.60% 226,600
Mega STATE STREET CORP $6,599,439 1.51% 213,505
Large Squarepoint Ops LLC $5,082,191 1.16% 164,419
Mega PRICE T ROWE ASSOCIATES INC /MD/ $5,070,939 1.16% 164,055
Mid Ikarian Capital, LLC $4,869,468 1.11% 157,537
Mega AMERIPRISE FINANCIAL INC $4,433,482 1.01% 143,432
Small Opaleye Management Inc. $3,801,930 0.87% 123,000
Mid Soleus Capital Management, L.P. $3,761,252 0.86% 121,684
Mega D. E. Shaw & Co., Inc. $3,589,269 0.82% 116,120
Mega WELLS FARGO & COMPANY/MN $3,482,442 0.80% 112,664
Large Woodline Partners LP $3,091,000 0.71% 100,000
Large ExodusPoint Capital Management, LP $2,586,517 0.59% 83,679
Small Prosight Management, LP $2,468,843 0.56% 79,872
Mega NORTHERN TRUST CORP Bank $2,421,890 0.55% 78,353
Mega JANE STREET GROUP, LLC $2,132,790 0.49% 69,000
Large Point72 Asset Management, L.P. $2,120,364 0.48% 68,598
Mega VANGUARD FIDUCIARY TRUST CO Bank $2,098,634 0.48% 67,895
Large Connor, Clark & Lunn Investment Management Ltd. $2,070,784 0.47% 66,994
Mega MORGAN STANLEY $2,004,449 0.46% 64,848
Mega RAYMOND JAMES FINANCIAL INC $1,984,297 0.45% 64,196
Mega GOLDMAN SACHS GROUP INC $1,929,587 0.44% 62,426
Mega JPMORGAN CHASE & CO $1,819,671 0.42% 58,870
Mega MILLENNIUM MANAGEMENT LLC $1,803,536 0.41% 58,348
Mega CITADEL ADVISORS LLC $1,619,684 0.37% 52,400
Mid BOOTHBAY FUND MANAGEMENT, LLC $1,426,094 0.33% 46,137
Small PFM Health Sciences, LP $1,425,847 0.33% 46,129
Mid Jump Financial, LLC $1,332,158 0.30% 43,098
Small Tetragon Partners GP Ltd $1,161,845 0.27% 37,588
Small Aldebaran Capital, LLC $1,149,357 0.26% 37,184
Large SEI INVESTMENTS CO $1,139,651 0.26% 36,870
Mega UBS Group AG $926,897 0.21% 29,987
Mega WELLINGTON MANAGEMENT GROUP LLP $903,807 0.21% 29,240
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $899,790 0.21% 29,110
Mid Clearstead Advisors, LLC $827,151 0.19% 26,760
Small MONIMUS CAPITAL MANAGEMENT, LP $826,935 0.19% 26,753
Large Caption Management, LLC $772,750 0.18% 25,000
Mega Bank of New York Mellon Corp Bank $765,329 0.17% 24,760
Mega TD Asset Management Inc $630,564 0.14% 20,400
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $627,473 0.14% 20,300
Small SECTORAL ASSET MANAGEMENT INC $589,113 0.13% 19,059
Mid GSA CAPITAL PARTNERS LLP $583,364 0.13% 18,873
Mega AQR CAPITAL MANAGEMENT LLC $523,427 0.12% 16,934
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $499,969 0.11% 16,175
Large ALPS ADVISORS INC $472,490 0.11% 15,286
Mega RHUMBLINE ADVISERS $433,574 0.10% 14,027
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $430,545 0.10% 13,929
Small Virtus Investment Advisers, LLC $426,527 0.10% 13,799
Mid ADAR1 Capital Management, LLC $401,860 0.09% 13,001
Mega AMERICAN CENTURY COMPANIES INC $387,425 0.09% 12,534
Large Creative Planning $384,705 0.09% 12,446
Mega Nuveen, LLC $371,940 0.08% 12,033
Mid XTX Topco Ltd $359,205 0.08% 11,621
Mega BANK OF AMERICA CORP /DE/ Bank $354,414 0.08% 11,466
Mega DIMENSIONAL FUND ADVISORS LP $311,479 0.07% 10,077
Mega DEUTSCHE BANK AG\ Bank $288,853 0.07% 9,345
Mega Invesco Ltd. $237,233 0.05% 7,675
Micro AlphaCentric Advisors LLC $211,702 0.05% 6,849
Large MetLife Investment Management, LLC $207,838 0.05% 6,724
Mega BARCLAYS PLC $207,281 0.05% 6,706
Mid China Universal Asset Management Co., Ltd. $195,722 0.04% 6,332
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $161,195 0.04% 5,215
Large NISA INVESTMENT ADVISORS, LLC $154,550 0.04% 5,000
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $142,186 0.03% 4,600
Mega Vanguard Global Advisers, LLC $122,527 0.03% 3,964
Mega BNP PARIBAS ARBITRAGE, SA $87,042 0.02% 2,816
Large Police & Firemen's Retirement System of New Jersey Pension $81,540 0.02% 2,638
Large CWM, LLC $56,534 0.01% 1,829
Large Caption Management, LLC $44,788 0.01% 1,449
Mid SIMPLEX TRADING, LLC $41,759 0.01% 1,351
Mega CITIGROUP INC $35,453 0.01% 1,147
Large US BANCORP \DE\ Bank $35,113 0.01% 1,136
Mid Ameritas Investment Partners, Inc. $34,681 0.01% 1,122
Mega Legal & General Group Plc $30,910 0.01% 1,000
Large Mirae Asset Global Investments Co., Ltd. $30,260 0.01% 979
Mid Tower Research Capital LLC (TRC) $28,250 0.01% 914
Large Russell Investments Group, Ltd. $26,304 0.01% 851
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $18,391 0.00% 595
Micro HighMark Wealth Management LLC $18,144 0.00% 587
Large Federation des caisses Desjardins du Quebec $15,455 0.00% 500
Mid GF FUND MANAGEMENT CO. LTD. $12,827 0.00% 415
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $11,807 0.00% 382
Large Rockefeller Capital Management L.P. $11,436 0.00% 370
Mid GAMMA Investing LLC $10,200 0.00% 330
Mid Sterling Capital Management LLC $9,674 0.00% 313
Mid Farther Finance Advisors, LLC $3,152 0.00% 102
Key facts CIK 1681087 CUSIP 878972108 13F (30d) 1 filings 1 filers Visit website Investor relations

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