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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 2021

Institutional positions in Tectonic Therapeutic, Inc. as of Mar 31, 2021. 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
99
No complete 13F data for Q4 2020
Shares held
33.4M
No complete 13F data for Q4 2020
Total value
$423.5M
No complete 13F data for Q4 2020

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 2021: 99 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 2021: $423.5M
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 2021

Shares, value and share of portfolio for each institution holding Tectonic Therapeutic, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding TECX in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
JPMorgan Chase & Co4,931,655$62.6M0.01%––
BlackRock Inc.3,489,127$44.3M0.00%––
Camber Capital Management LP3,133,333$39.8M1.58%––
State Street Corp2,285,801$29.0M0.00%––
Federated Hermes, Inc.2,280,771$28.9M0.06%––
Vanguard Group Inc1,884,686$23.9M0.00%––
GMT Capital Corp1,562,476$19.8M1.46%––
Citadel Advisors LLC1,446,235$18.4M0.02%––
Aisling Capital Management LP1,009,779$12.8M2.31%––
Emerald Mutual Fund Advisers Trust947,928$12.0M0.40%––
Emerald Advisers, LLC917,222$11.6M0.42%––
Bank of New York Mellon Corp855,348$10.9M0.00%––
Farallon Capital Management, L.L.C.740,000$9.39M0.05%––
Millennium Management LLC686,091$8.71M0.01%––
Geode Capital Management, LLC595,715$7.56M0.00%––
Morgan Stanley461,183$5.85M0.00%––
Point72 Asset Management, L.P.401,200$5.09M0.03%––
Northern Trust Corp400,931$5.09M0.00%––
Jacobs Levy Equity Management, Inc343,734$4.36M0.03%––
Goldman Sachs Group Inc336,739$4.27M0.00%––
Janus Henderson Group PLC320,993$4.07M0.00%––
New Leaf Venture Partners, L.L.C.315,550$4.00M0.93%––
SV Health Investors, LLC275,034$3.49M1.31%––
FMR LLC275,054$3.49M0.00%––
UBS Asset Management Americas Inc272,783$3.46M0.00%––
Burrage Capital Management LLC244,920$3.11M2.52%––
Charles Schwab Investment Management Inc220,346$2.80M0.00%––
Wellington Management Group LLP179,900$2.28M0.00%––
Citigroup Inc139,444$1.77M0.00%––
Nuveen Asset Management, LLC133,847$1.70M0.00%––
DekaBank Deutsche Girozentrale141,000$1.68M0.01%––
Victory Capital Management Inc130,270$1.65M0.00%––
Two Sigma Investments, LP119,871$1.52M0.00%––
Kennedy Capital Management, Inc.103,591$1.31M0.03%––
Rafferty Asset Management, LLC98,954$1.26M0.01%––
Two Sigma Advisers, LP93,400$1.19M0.00%––
Squarepoint Ops LLC90,747$1.15M0.01%––
Swiss National Bank80,100$1.02M0.00%––
Alps Advisors Inc74,994$952.0K0.01%––
Wells Fargo & Company73,388$931.0K0.00%––
Ameriprise Financial Inc71,519$908.0K0.00%––
Barclays PLC66,588$845.0K0.00%––
California Public Employees Retirement System63,400$805.0K0.00%––
Deutsche Bank AG59,567$755.0K0.00%––
Marshall Wace, LLP54,793$695.0K0.00%––
Dimensional Fund Advisors LP53,949$685.0K0.00%––
California State Teachers Retirement System53,597$680.0K0.00%––
Migdal Insurance & Financial Holdings Ltd.50,645$643.0K0.01%––
Russell Investments Group, Ltd.49,723$630.0K0.00%––
State of Wisconsin Investment Board44,000$558.0K0.00%––
Allianz Asset Management GmbH39,836$506.0K0.00%––
Rhumbline Advisers37,033$470.0K0.00%––
Gsa Capital Partners LLP35,645$452.0K0.07%––
Bank of America Corp35,048$445.0K0.00%––
Alliancebernstein L.P.28,400$360.0K0.00%––
Susquehanna International Group, LLP28,393$360.0K0.00%––
New York State Common Retirement Fund28,300$359.0K0.00%––
First Republic Investment Management, Inc.28,189$358.0K0.00%––
Group One Trading, L.P.27,967$355.0K0.01%––
Monarch Partners Asset Management LLC27,320$347.0K0.05%––
Rockefeller Capital Management L.P.26,650$338.0K0.00%––
Strategic Wealth Advisors Group, LLC25,050$318.0K0.02%––
ClariVest Asset Management LLC23,200$294.0K0.01%––
Credit Suisse AG22,715$288.0K0.00%––
Cubist Systematic Strategies, LLC22,303$283.0K0.00%––
Virtus ETF Advisers LLC22,244$282.0K0.12%––
Manufacturers Life Insurance Company, The21,855$277.0K0.00%––
American International Group, Inc.20,710$263.0K0.00%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.20,494$260.0K0.00%––
Vontobel Holding Ltd.20,000$254.0K0.00%––
Virginia Retirement Systems Et Al18,700$237.0K0.00%––
ProShare Advisors LLC15,278$194.0K0.00%––
Voya Investment Management LLC14,978$190.0K0.00%––
MetLife Investment Management13,849$175.7K0.00%––
Engineers Gate Manager LP13,660$173.0K0.01%––
Parametric Portfolio Associates LLC12,806$163.0K0.00%––
State Board of Administration of Florida Retirement System12,496$159.0K0.00%––
Arizona State Retirement System10,256$130.0K0.00%––
BNP Paribas Arbitrage, SA9,888$125.5K0.00%––
Metropolitan Life Insurance Co8,764$111.2K0.00%––
SG Americas Securities, LLC8,071$102.0K0.00%––
Legal & General Group Plc6,411$81.0K0.00%––
1623 Capital LLC6,070$77.0K0.04%––
Simplex Trading, LLC5,707$72.0K0.00%––
Royal Bank of Canada4,274$55.0K0.00%––
Great West Life Assurance Co3,172$40.0K0.00%––
Ameritas Investment Partners, Inc.2,729$35.0K0.00%––
Pacer Advisors, Inc.2,317$29.0K0.00%––
Zurcher Kantonalbank (Zurich Cantonalbank)1,951$25.0K0.00%––
Tower Research Capital LLC (TRC)1,564$20.0K0.00%––
CWM, LLC2,000$18.0K0.00%––
Bank of Montreal1,120$13.0K0.00%––
Savior LLC950$12.0K0.01%––
Penserra Capital Management LLC935$11.0K0.00%––
Macquarie Group Ltd805$10.0K0.00%––
Newbridge Financial Services Group, Inc.367$5.00K0.00%––
UBS Group AG335$4.00K0.00%––
US Bancorp188$2.00K0.00%––
Daiwa Securities Group Inc.80$1.00K0.00%––