Tectonic Therapeutic, Inc. - TECX

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
FMR LLC History Added to 2,830,378 97,294 0.0% 0.0% 1 +13,884 0.49% Q2 2026 Aug 13, 2026
TCG Crossover Management, LLC History No change 1,204,891 41,418 1.0% 1.07% 2 0 0.0% Q2 2026 Aug 14, 2026
Aberdeen Group plc History No change 1,141,824 39,250 0.06% 0.06% 3 0 0.0% Q2 2026 Jul 31, 2026
BlackRock, Inc. History Added to 862,592 29,651 0.0% 0.0% 4 +2,240 0.26% Q2 2026 Aug 07, 2026
First Light Asset Management, LLC History Added to 800,726 27,524 1.67% 1.79% 5 +152,983 23.62% Q2 2026 Aug 14, 2026
BAKER BROS. ADVISORS LP History No change 607,788 20,892 0.1% 0.11% 6 0 0.0% Q2 2026 Aug 14, 2026
5AM Venture Management, LLC History No change 606,660 20,853 7.24% 5.21% 7 0 0.0% Q2 2026 Aug 14, 2026
BRAIDWELL LP History Reduced 596,900 20,518 0.76% 0.87% 8 -250,251 -29.54% Q2 2026 Aug 14, 2026
VANGUARD CAPITAL MANAGEMENT LLC History Added to 488,805 16,802 0.0% 0.0% 9 +15,273 3.23% Q2 2026 Aug 13, 2026
Vestal Point Capital, LP History Added to 425,000 14,609 0.34% 0.28% 10 +97,000 29.57% Q2 2026 Aug 14, 2026
Bollard Group LLC History No change 302,953 10,414 0.32% 0.28% 11 0 0.0% Q2 2026 Aug 12, 2026
KENNEDY CAPITAL MANAGEMENT LLC History Reduced 282,202 9,700 0.17% 0.19% 12 -4,480 -1.56% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 270,461 9,299 0.0% 0.0% 13 +2,188 0.82% Q2 2026 Aug 12, 2026
ORBIMED ADVISORS LLC History No change 226,600 7,789 0.14% 0.14% 14 0 0.0% Q2 2026 Aug 14, 2026
STATE STREET CORP History Added to 219,908 7,559 0.0% 0.0% 15 +6,403 3.0% Q2 2026 Aug 07, 2026
Ikarian Capital, LLC History Added to 205,837 7,075 0.76% 0.4% 16 +48,300 30.66% Q2 2026 Aug 14, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 187,700 6,453 0.0% 0.0% 17 -105,775 -36.04% Q2 2026 Aug 14, 2026
D. E. Shaw & Co., Inc. History Added to 186,550 6,412 0.0% 0.0% 18 +70,430 60.65% Q2 2026 Aug 14, 2026
MARSHALL WACE, LLP History Reduced 172,101 5,916 0.0% 0.01% 19 -57,494 -25.04% Q2 2026 Aug 13, 2026
MILLENNIUM MANAGEMENT LLC History Added to 165,525 5,689 0.0% 0.0% 20 +107,177 183.69% Q2 2026 Aug 14, 2026
Squarepoint Ops LLC History Reduced 145,028 4,985 0.01% 0.01% 21 -19,391 -11.79% Q2 2026 Aug 14, 2026
AMERIPRISE FINANCIAL INC History Reduced 142,448 4,896 0.0% 0.0% 22 -984 -0.69% Q2 2026 Aug 14, 2026
WELLS FARGO & COMPANY/MN History Added to 117,428 4,036 0.0% 0.0% 23 +4,764 4.23% Q2 2026 Aug 14, 2026
NORTHERN TRUST CORP History Added to 113,904 3,915 0.0% 0.0% 24 +35,551 45.37% Q2 2026 Aug 13, 2026
CITADEL ADVISORS LLC History Added to 107,393 3,691 0.0% 0.0% 25 +54,993 104.95% Q2 2026 Sep 02, 2026
Soleus Capital Management, L.P. History Reduced 101,684 3,495 0.12% 0.15% 26 -20,000 -16.44% Q2 2026 Aug 11, 2026
Woodline Partners LP History No change 100,000 3,437 0.01% 0.01% 27 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History Added to 94,414 3,245 0.0% 0.0% 28 +30,807 48.43% Q2 2026 Aug 13, 2026
GOLDMAN SACHS GROUP INC History Added to 73,924 2,541 0.0% 0.0% 29 +11,498 18.42% Q2 2026 Aug 14, 2026
RAYMOND JAMES FINANCIAL INC History Added to 72,674 2,498 0.0% 0.0% 30 +8,478 13.21% Q2 2026 Aug 14, 2026
SECTORAL ASSET MANAGEMENT INC History Added to 71,009 2,440 1.7% 0.52% 31 +51,950 272.57% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History Added to 68,394 2,351 0.0% 0.0% 32 +499 0.73% Q2 2026 Aug 13, 2026
JANE STREET GROUP, LLC History Reduced 65,821 2,262 0.0% 0.0% 33 -3,179 -4.61% Q2 2026 Aug 14, 2026
MORGAN STANLEY History Added to 65,373 2,247 0.0% 0.0% 34 +525 0.81% Q2 2026 Aug 13, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 64,940 2,232 0.0% 0.0% 35 -2,054 -3.07% Q2 2026 Aug 12, 2026
BOOTHBAY FUND MANAGEMENT, LLC History Added to 60,771 2,089 0.03% 0.02% 36 +14,634 31.72% Q2 2026 Aug 14, 2026
JPMORGAN CHASE & CO History Reduced 55,364 1,831 0.0% 0.0% 37 -3,506 -5.96% Q2 2026 Aug 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Reduced 48,001 1,651 0.0% 0.0% 38 -116,054 -70.74% Q2 2026 Aug 14, 2026
Tetragon Partners GP Ltd History Added to 46,516 1,598 0.25% 0.23% 39 +8,928 23.75% Q2 2026 Aug 12, 2026
PFM Health Sciences, LP History Reduced 45,631 1,568 0.13% 0.13% 40 -498 -1.08% Q2 2026 Aug 14, 2026
HRT FINANCIAL LP History New 44,540 1,531 0.0% 41 +44,540 New Q2 2026 Aug 14, 2026
Jump Financial, LLC History Added to 43,400 1,491 0.01% 0.02% 42 +302 0.7% Q2 2026 Aug 13, 2026
Prosight Management, LP History Reduced 39,731 1,365 0.24% 0.4% 43 -40,141 -50.26% Q2 2026 Aug 14, 2026
Trexquant Investment LP History New 36,991 1,271 0.01% 44 +36,991 New Q2 2026 Aug 14, 2026
Aldebaran Capital, LLC History Reduced 36,797 1,264 0.95% 0.88% 45 -387 -1.04% Q2 2026 Aug 14, 2026
ExodusPoint Capital Management, LP History Reduced 35,239 1,211 0.01% 0.02% 46 -48,440 -57.89% Q2 2026 Aug 14, 2026
WELLINGTON MANAGEMENT GROUP LLP History Added to 31,432 1,080 0.0% 0.0% 47 +2,192 7.5% Q2 2026 Aug 14, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Added to 30,438 1,046 0.0% 0.0% 48 +1,328 4.56% Q2 2026 Aug 14, 2026
MONIMUS CAPITAL MANAGEMENT, LP History Added to 28,143 967 0.22% 0.23% 49 +1,390 5.2% Q2 2026 Aug 14, 2026
Bank of New York Mellon Corp History Added to 25,247 867 0.0% 0.0% 50 +487 1.97% Q2 2026 Aug 06, 2026
ALPS ADVISORS INC History Added to 19,147 658 0.0% 0.0% 51 +3,861 25.26% Q2 2026 Jul 29, 2026
Fisher Asset Management, LLC History New 19,122 657 0.0% 52 +19,122 New Q2 2026 Aug 04, 2026
AMERICAN CENTURY COMPANIES INC History Added to 19,001 653 0.0% 0.0% 53 +6,467 51.6% Q2 2026 Aug 12, 2026
Quadrature Capital Ltd History New 18,067 621 0.01% 54 +18,067 New Q2 2026 Aug 06, 2026
SEI INVESTMENTS CO History Reduced 17,029 585 0.0% 0.0% 55 -19,841 -53.81% Q2 2026 Aug 14, 2026
Clearstead Advisors, LLC History Reduced 16,630 571 0.01% 0.01% 56 -10,130 -37.86% Q2 2026 Aug 06, 2026
UBS Group AG History Reduced 15,055 517 0.0% 0.0% 57 -14,932 -49.79% Q2 2026 Aug 13, 2026
ADAR1 Capital Management, LLC History Added to 14,501 498 0.02% 0.02% 58 +1,500 11.54% Q2 2026 Aug 14, 2026
RHUMBLINE ADVISERS History Reduced 13,773 473 0.0% 0.0% 59 -254 -1.81% Q2 2026 Aug 11, 2026
Nuveen, LLC History Added to 13,514 464 0.0% 0.0% 60 +1,481 12.31% Q2 2026 Aug 11, 2026
BANK OF AMERICA CORP /DE/ History Reduced 11,043 379 0.0% 0.0% 61 -423 -3.69% Q2 2026 Aug 14, 2026
Virtus Investment Advisers, LLC History Reduced 10,806 371 0.09% 0.12% 62 -2,993 -21.69% Q2 2026 Aug 11, 2026
DIMENSIONAL FUND ADVISORS LP History Added to 10,443 358 0.0% 0.0% 63 +366 3.63% Q2 2026 Aug 11, 2026
DEUTSCHE BANK AG\ History Added to 10,039 345 0.0% 0.0% 64 +694 7.43% Q2 2026 Aug 07, 2026
Brevan Howard Capital Management LP History New 9,573 329 0.0% 65 +9,573 New Q2 2026 Aug 14, 2026
BARCLAYS PLC History Added to 9,128 313 0.0% 0.0% 66 +2,422 36.12% Q2 2026 Aug 14, 2026
Creative Planning History Reduced 8,961 308 0.0% 0.0% 67 -3,485 -28.0% Q2 2026 Aug 13, 2026
FOX RUN MANAGEMENT, L.L.C. History New 8,865 304 0.05% 68 +8,865 New Q2 2026 Aug 04, 2026
Vanguard Global Advisers, LLC History Added to 8,765 301 0.0% 0.0% 69 +4,801 121.12% Q2 2026 Aug 13, 2026
GSA CAPITAL PARTNERS LLP History Reduced 8,275 284 0.02% 0.04% 70 -10,598 -56.15% Q2 2026 Aug 06, 2026
AlphaCentric Advisors LLC History Added to 6,948 238 0.2% 0.21% 71 +99 1.45% Q2 2026 Jul 24, 2026
MetLife Investment Management, LLC History No change 6,724 231 0.0% 0.0% 72 0 0.0% Q2 2026 Aug 13, 2026
ALLIANCEBERNSTEIN L.P. History New 7,460 230 0.0% 73 +7,460 New Q2 2026 Aug 14, 2026
AQR CAPITAL MANAGEMENT LLC History Reduced 6,617 227 0.0% 0.0% 74 -10,317 -60.92% Q2 2026 Aug 14, 2026
Invesco Ltd. History Reduced 6,388 219 0.0% 0.0% 75 -1,287 -16.77% Q2 2026 Aug 14, 2026
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM History New 6,060 208 0.0% 76 +6,060 New Q2 2026 Aug 10, 2026
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Reduced 5,996 206 0.0% 0.0% 77 -7,933 -56.95% Q2 2026 Sep 09, 2026
Rangeley Capital, LLC History New 6,000 206 0.19% 78 +6,000 New Q2 2026 Aug 14, 2026
Velan Capital Investment Management LP History New 6,000 206 0.13% 79 +6,000 New Q2 2026 Aug 14, 2026
Russell Investments Group, Ltd. History Added to 5,567 191 0.0% 0.0% 80 +4,716 554.17% Q2 2026 Aug 06, 2026
CITIGROUP INC History Added to 5,548 190 0.0% 0.0% 81 +4,401 383.7% Q2 2026 Aug 03, 2026
China Universal Asset Management Co., Ltd. History Reduced 5,503 189 0.01% 0.01% 82 -829 -13.09% Q2 2026 Jul 24, 2026
NISA INVESTMENT ADVISORS, LLC History Added to 5,400 185 0.0% 0.0% 83 +400 8.0% Q2 2026 Aug 10, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 5,146 176 0.0% 0.0% 84 +2,330 82.74% Q2 2026 Aug 13, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 4,694 161 0.0% 0.0% 85 -521 -9.99% Q2 2026 Aug 14, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 4,600 158 0.0% 0.0% 86 0 0.0% Q2 2026 Jul 29, 2026
Police & Firemen's Retirement System of New Jersey History No change 2,638 90 0.0% 0.0% 87 0 0.0% Q2 2026 Jul 23, 2026
Quantbot Technologies LP History New 1,819 62 0.0% 88 +1,819 New Q2 2026 Aug 12, 2026
CWM, LLC History No change 1,829 56 0.0% 0.0% 89 0 0.0% Q1 2026 May 14, 2026
Ameritas Investment Partners, Inc. History No change 1,122 38 0.0% 0.0% 90 0 0.0% Q2 2026 Aug 13, 2026
US BANCORP \DE\ History Reduced 1,080 37 0.0% 0.0% 91 -56 -4.93% Q2 2026 Aug 12, 2026
Legal & General Group Plc History No change 1,000 34 0.0% 0.0% 92 0 0.0% Q2 2026 Aug 14, 2026
Mirae Asset Global Investments Co., Ltd. History Reduced 844 29 0.0% 0.0% 93 -135 -13.79% Q2 2026 Jul 22, 2026
Chung Wu Investment Group, LLC History New 800 27 0.02% 94 +800 New Q2 2026 Jul 31, 2026
Arax Advisory Partners History New 725 24 0.0% 95 +725 New Q2 2026 Aug 10, 2026
Tower Research Capital LLC (TRC) History Reduced 661 22 0.0% 0.0% 96 -253 -27.68% Q2 2026 Aug 11, 2026
State of Wyoming History New 601 20 0.0% 98 +601 New Q2 2026 Aug 06, 2026
HighMark Wealth Management LLC History No change 587 20 0.01% 0.01% 97 0 0.0% Q2 2026 Aug 12, 2026
SIMPLEX TRADING, LLC History Reduced 439 15 0.0% 0.0% 99 -912 -67.51% Q2 2026 Aug 12, 2026
GF FUND MANAGEMENT CO. LTD. History Reduced 400 13 0.0% 0.0% 101 -15 -3.61% Q2 2026 Aug 07, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History No change 382 13 0.0% 0.0% 100 0 0.0% Q2 2026 Aug 13, 2026
Rockefeller Capital Management L.P. History No change 370 12 0.0% 0.0% 102 0 0.0% Q2 2026 Aug 13, 2026
ROYAL BANK OF CANADA History New 311 11 0.0% 103 +311 New Q2 2026 Aug 14, 2026
GAMMA Investing LLC History Reduced 290 9 0.0% 0.0% 104 -40 -12.12% Q2 2026 Jul 07, 2026
Federation des caisses Desjardins du Quebec History Reduced 250 8 0.0% 0.0% 105 -250 -50.0% Q2 2026 Aug 13, 2026
Sterling Capital Management LLC History Reduced 176 6 0.0% 0.0% 106 -137 -43.77% Q2 2026 Jul 28, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 141 4 0.0% 0.0% 107 -454 -76.3% Q2 2026 Aug 24, 2026
Axiom Investment Management LLC History New 125 4 0.0% 108 +125 New Q2 2026 Jul 30, 2026
Farther Finance Advisors, LLC History Reduced 76 2 0.0% 0.0% 109 -26 -25.49% Q2 2026 Jul 17, 2026
PNC FINANCIAL SERVICES GROUP, INC. History Added to 40 1 0.0% 110 +14 53.85% Q2 2026 Aug 07, 2026
Allworth Financial LP History Reduced 52 1 0.0% 0.0% 111 -13 -20.0% Q2 2026 Aug 11, 2026
Marshall & Sterling Wealth Advisors Inc. History No change 50 1 0.0% 0.0% 112 0 0.0% Q2 2026 Jul 21, 2026
Opaleye Management Inc. History Closed out 0 0 0.5% -123,000 -100.0% Q2 2026 Aug 14, 2026
Point72 Asset Management, L.P. History Closed out 0 0 0.0% -68,598 -100.0% Q2 2026 Aug 14, 2026
Caption Management, LLC History Closed out 0 0 0.0% -26,449 -100.0% Q2 2026 Aug 14, 2026
TD ASSET MANAGEMENT INC History Closed out 0 0 0.0% -20,400 -100.0% Q2 2026 Aug 04, 2026
XTX Topco Ltd History Closed out 0 0 0.01% -11,621 -100.0% Q2 2026 Aug 14, 2026
Essential Partners LLC History Reduced 5 0 0.0% -32 -86.49% Q2 2026 Aug 10, 2026
Global Wealth Strategies & Associates History Closed out 0 0 -18 -100.0% Q2 2026 Jul 01, 2026
Fortitude Family Office, LLC History Closed out 0 0 -15 -100.0% Q2 2026 Jul 20, 2026
EASTERN BANK History New 13 0 +13 New Q2 2026 Jul 01, 2026
EverSource Wealth Advisors, LLC History Reduced 7 0 -12 -63.16% Q2 2026 Jul 24, 2026
SBI Securities Co., Ltd. History New 11 0 +11 New Q2 2026 Jul 22, 2026
ROTHSCHILD INVESTMENT LLC History Reduced 2 0 -9 -81.82% Q2 2026 Aug 06, 2026
First Bancorp, Inc /ME/ History New 8 0 +8 New Q2 2026 Aug 11, 2026
MAI Capital Management History Closed out 0 0 -7 -100.0% Q2 2026 Aug 14, 2026
True Wealth Design, LLC History Closed out 0 0 -7 -100.0% Q2 2026 Jul 16, 2026
NATIONAL BANK OF CANADA /FI/ History New 6 0 +6 New Q2 2026 Aug 10, 2026
Root Financial Partners, LLC History Closed out 0 0 -5 -100.0% Q2 2026 Jul 29, 2026
IFP Advisors, Inc History New 2 0 +2 New Q2 2026 Jul 20, 2026
OSAIC HOLDINGS, INC. History New 2 0 +2 New Q2 2026 Aug 14, 2026
HUNTINGTON NATIONAL BANK History No change 13 0 0 0.0% Q2 2026 Aug 13, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History No change 3 0 0 0.0% Q2 2026 Aug 11, 2026
Sunbelt Securities, Inc. History No change 8 0 0 0.0% Q1 2026 May 15, 2026
Caldwell Trust Co History No change 20 0 0 0.0% Q2 2026 Aug 03, 2026