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Tectonic Therapeutic, Inc.

TECX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001681087

In the last 90 days, Tectonic Therapeutic, Inc. insiders filed 0 open-market purchases and 3 sales; 122 institutions reported holding it in 13F filings for Q2 2026, worth $479.9M in total; no superinvestor holds it.

13F holders, Q1 2022

Institutional positions in Tectonic Therapeutic, Inc. as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
81
−13 vs. Q4 2021
Shares held
29.4M
−5.70M (−16.3%) vs. Q4 2021
Total value
$38.8M
−$96.1M (−71.2%) vs. Q4 2021
New holders
11
23 more added
Sold out
24
30 more reduced

Compare with Q4 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TECX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2022: 81 institutions
Q1 2021: 99 institutionsQ2 2021: 97 institutionsQ3 2021: 101 institutionsQ4 2021: 94 institutionsQ1 2022: 81 institutionsQ2 2022: 64 institutionsQ3 2022: 54 institutionsQ4 2022: 45 institutionsQ1 2023: 48 institutionsQ2 2023: 41 institutionsQ3 2023: 48 institutionsQ4 2023: 45 institutionsQ1 2024: 47 institutionsQ2 2024: 40 institutionsQ3 2024: 53 institutionsQ4 2024: 70 institutionsQ1 2025: 78 institutionsQ2 2025: 82 institutionsQ3 2025: 99 institutionsQ4 2025: 105 institutionsQ1 2026: 111 institutionsQ2 2026: 122 institutions
Value heldQ1 2022: $38.8M
Q1 2021: $423.5MQ2 2021: $287.7MQ3 2021: $166.5MQ4 2021: $134.9MQ1 2022: $38.8MQ2 2022: $23.8MQ3 2022: $15.7MQ4 2022: $14.8MQ1 2023: $22.8MQ2 2023: $18.9MQ3 2023: $39.9MQ4 2023: $32.2MQ1 2024: $35.2MQ2 2024: $88.1MQ3 2024: $217.4MQ4 2024: $354.9MQ1 2025: $198.8MQ2 2025: $240.7MQ3 2025: $189.9MQ4 2025: $288.1MQ1 2026: $426.8MQ2 2026: $479.9M
Institutions holding TECX and their total value by quarter
QuarterHoldersValue
Q2 2026122$479.9M
Q1 2026111$426.8M
Q4 2025105$288.1M
Q3 202599$189.9M
Q2 202582$240.7M
Q1 202578$198.8M
Q4 202470$354.9M
Q3 202453$217.4M
Q2 202440$88.1M
Q1 202447$35.2M
Q4 202345$32.2M
Q3 202348$39.9M
Q2 202341$18.9M
Q1 202348$22.8M
Q4 202245$14.8M
Q3 202254$15.7M
Q2 202264$23.8M
Q1 202281$38.8M
Q4 202194$134.9M
Q3 2021101$166.5M
Q2 202197$287.7M
Q1 202199$423.5M

Institutions, Q1 2022

Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc.; share changes are against Q4 2021.

Institutions holding TECX in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Atlas Venture Life Science Advisors, LLC4,520,863$5.97M0.75%00.0%Unchanged
BlackRock Inc.3,788,727$5.00M0.00%+332,639+9.6%Added
GMT Capital Corp2,594,914$3.42M0.22%00.0%Unchanged
Federated Hermes, Inc.2,449,015$3.23M0.01%−146,438−5.6%Reduced
JPMorgan Chase & Co1,994,391$2.63M0.00%−2,542,040−56.0%Reduced
Vanguard Group Inc1,073,168$1.42M0.00%−605,939−36.1%Reduced
Aisling Capital Management LP1,009,779$1.33M0.72%00.0%Unchanged
Acadian Asset Management LLC913,457$1.20M0.00%+564,504+161.8%Added
Renaissance Technologies LLC885,100$1.17M0.00%+564,100+175.7%Added
Geode Capital Management, LLC745,681$984.0K0.00%+95,474+14.7%Added
Farallon Capital Management, L.L.C.740,000$977.0K0.01%00.0%Unchanged
Two Sigma Advisers, LP675,800$892.0K0.00%+262,000+63.3%Added
Two Sigma Investments, LP672,433$888.0K0.00%+200,499+42.5%Added
MPM Oncology Impact Management LP647,918$855.0K0.23%00.0%Unchanged
State Street Corp625,811$826.0K0.00%−212,691−25.4%Reduced
Citadel Advisors LLC618,028$816.0K0.00%+95,619+18.3%Added
Millennium Management LLC524,439$692.0K0.00%−111,938−17.6%Reduced
AQR Capital Management LLC497,978$657.0K0.00%+422,207+557.2%Added
D. E. Shaw & Co., Inc.481,251$635.0K0.00%+421,782+709.2%Added
Morgan Stanley467,658$617.0K0.00%+169,054+56.6%Added
Gsa Capital Partners LLP338,422$447.0K0.06%+120,285+55.1%Added
Northern Trust Corp321,962$425.0K0.00%−23,076−6.7%Reduced
New Leaf Venture Partners, L.L.C.315,550$417.0K0.21%00.0%Unchanged
Eversept Partners, LP295,369$389.9K0.04%−9,620−3.2%Reduced
Goldman Sachs Group Inc271,749$359.0K0.00%−1,110,009−80.3%Reduced
Bridgeway Capital Management, LLC233,100$308.0K0.01%+80,000+52.3%Added
Walleye Capital LLC198,926$263.0K0.01%+53,767+37.0%Added
Nuveen Asset Management, LLC137,908$218.0K0.00%+3,781+2.8%Added
Connor, Clark & Lunn Investment Management Ltd.150,752$199.0K0.00%+30,934+25.8%Added
Bank of New York Mellon Corp145,476$192.0K0.00%−3,405−2.3%Reduced
Susquehanna Fundamental Investments, LLC92,296$122.0K0.00%+59,894+184.8%Added
Wells Fargo & Company89,570$118.0K0.00%−2,372−2.6%Reduced
Charles Schwab Investment Management Inc84,117$112.0K0.00%−13,368−13.7%Reduced
Parametric Portfolio Associates LLC84,127$111.0K0.00%+17,043+25.4%Added
Barclays PLC61,271$81.0K0.00%−39,835−39.4%Reduced
Deutsche Bank AG55,565$73.0K0.00%−2,438−4.2%Reduced
Algert Global LLC55,200$73.0K0.00%+45,130+448.2%Added
Rhumbline Advisers46,582$61.0K0.00%−4,678−9.1%Reduced
Penn Mutual Asset Management, LLC37,306$49.0K0.06%+37,306New
Mirabella Financial Services LLP31,500$42.0K0.00%+31,500New
Alliancebernstein L.P.30,300$40.0K0.00%−2,800−8.5%Reduced
XTX Topco Ltd23,289$31.0K0.01%+134+0.6%Added
Cubist Systematic Strategies, LLC22,496$30.0K0.00%−2,078−8.5%Reduced
Dimensional Fund Advisors LP20,842$28.0K0.00%−25,165−54.7%Reduced
American International Group, Inc.18,810$25.0K0.00%−1,324−6.6%Reduced
HSBC Holdings PLC18,687$25.0K0.00%00.0%Unchanged
Colonial River Wealth Management, LLC17,636$23.0K0.01%+17,636New
Prelude Capital Management, LLC16,800$22.0K0.00%−3,500−17.2%Reduced
California State Teachers Retirement System16,541$22.0K0.00%−2,962−15.2%Reduced
State Board of Administration of Florida Retirement System14,939$20.0K0.00%00.0%Unchanged
Voya Investment Management LLC13,617$18.0K0.00%−38,129−73.7%Reduced
Tower Research Capital LLC (TRC)13,662$18.0K0.00%−13,102−49.0%Reduced
Occudo Quantitative Strategies LP13,372$18.0K0.00%+13,372New
Bank of America Corp12,568$17.0K0.00%−11,266−47.3%Reduced
ProShare Advisors LLC11,620$16.0K0.00%−2,803−19.4%Reduced
New York State Common Retirement Fund12,320$16.0K0.00%00.0%Unchanged
Invesco Ltd.11,429$15.0K0.00%+39+0.3%Added
ExodusPoint Capital Management, LP10,519$14.0K0.00%−2,759−20.8%Reduced
Needham Investment Management LLC10,513$14.0K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC10,000$14.0K0.00%+10,000New
Running Point Capital Advisors, LLC10,000$13.0K0.01%+10,000New
Quantbot Technologies LP5,300$6.00K0.00%+500+10.4%Added
Amalgamated Bank4,561$6.00K0.00%+4,561New
Amalgamated Financial Corp.4,561$6.00K0.00%+4,561New
Royal Bank of Canada4,192$5.00K0.00%−5,248−55.6%Reduced
BNP Paribas Arbitrage, SA3,113$4.11K0.00%−7,034−69.3%Reduced
Group One Trading, L.P.3,007$4.00K0.00%−500−14.3%Reduced
Legal & General Group Plc3,029$4.00K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,729$4.00K0.00%00.0%Unchanged
Point72 Hong Kong Ltd3,209$4.00K0.00%+226+7.6%Added
Citigroup Inc2,578$3.00K0.00%−8,354−76.4%Reduced
UBS Group AG2,476$3.00K0.00%−2,511−50.4%Reduced
CWM, LLC2,000$3.00K0.00%00.0%Unchanged
Aquatic Capital Management LLC2,000$3.00K0.00%+2,000New
FMR LLC1,242$2.00K0.00%+742+148.4%Added
Simplex Trading, LLC2,146$2.00K0.00%+2,146New
RPg Family Wealth Advisory, LLC270$3560.00%+270New
Raffa Wealth Management, LLC166$2190.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.367$00.00%00.0%Unchanged
Toronto Dominion Bank4$00.00%00.0%Unchanged
Daiwa Securities Group Inc.80$00.00%00.0%Unchanged
Camber Capital Management LP0$00.00%−1,633,333−100.0%Sold out
Deep Track Capital, LP0$00.00%−1,050,132−100.0%Sold out
Janus Henderson Group PLC0$00.00%−732,832−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−150,000−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−133,448−100.0%Sold out
Maven Securities LTD0$00.00%−102,041−100.0%Sold out
Kennedy Capital Management, Inc.0$00.00%−97,597−100.0%Sold out
Ameriprise Financial Inc0$00.00%−83,690−100.0%Sold out
Nomura Holdings Inc0$00.00%−76,884−100.0%Sold out
PDT Partners, LLC0$00.00%−59,700−100.0%Sold out
HRT Financial LP0$00.00%−54,975−100.0%Sold out
Marshall Wace, LLP0$00.00%−46,711−100.0%Sold out
Caxton Associates LP0$00.00%−36,725−100.0%Sold out
Russell Investments Group, Ltd.0$00.00%−33,725−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−21,749−100.0%Sold out
Manufacturers Life Insurance Company, The0$00.00%−21,176−100.0%Sold out
Walleye Trading LLC0$00.00%−20,428−100.0%Sold out
First Republic Investment Management, Inc.0$00.00%−20,000−100.0%Sold out
Raymond James & Associates0$00.00%−14,883−100.0%Sold out