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TECX Insider Trading

Insider Ownership Percentage: 38.00%
Insider Buying (Last 12 Months): $1,835,373.86
Insider Selling (Last 12 Months): $566,551.48

Tectonic Therapeutic Insider Trading History Chart

This chart shows the insider buying and selling history at Tectonic Therapeutic by year and by quarter.

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Tectonic Therapeutic Share Price & Price History

Current Price: $29.35
Price Change: ▼ Price Decrease of -1.41 (-4.58%)
As of 03/27/2026 05:00 PM ET

This chart shows the closing price history over time for TECX up to the past year.

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Days: 30 | 90 | 365

Tectonic Therapeutic Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
3/6/2026Marcella K RuddyInsiderSell10,000$30.00$300,000.0069,747View SEC Filing Icon  
3/6/2026Peter McnamaraInsiderSell6,262$30.17$188,924.5455,285View SEC Filing Icon  
3/4/2026Peter McnamaraInsiderSell1,650$25.00$41,250.0058,832View SEC Filing Icon  
3/3/2026Peter McnamaraInsiderSell1,649$22.06$36,376.9437,482View SEC Filing Icon  
2/10/2026Daniel LochnerCFOBuy6,000$21.61$129,660.0032,044View SEC Filing Icon  
4/11/2025Timothy A SpringerDirectorBuy9,478$16.31$154,586.184,334,846View SEC Filing Icon  
4/9/2025Timothy A SpringerDirectorBuy3,718$14.76$54,877.684,317,276View SEC Filing Icon  
4/7/2025Timothy A SpringerDirectorBuy87,500$17.10$1,496,250.004,313,558View SEC Filing Icon  
2/5/2025Daniel LochnerCFOBuy4,617$54.14$249,964.384,617View SEC Filing Icon  
2/5/2025Timothy A SpringerDirectorBuy129,294$54.14$6,999,977.164,226,058View SEC Filing Icon  
10/22/2024Timothy A SpringerDirectorBuy300,000$33.59$10,077,000.004,096,764View SEC Filing Icon  
9/26/2024Timothy A SpringerDirectorBuy50,000$28.82$1,441,000.003,796,764View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Tectonic Therapeutic (NASDAQ:TECX)

62.63% of Tectonic Therapeutic stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at TECX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Tectonic Therapeutic Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Vestal Point Capital LP328,000$6.84M0.2%N/A1.752%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC13,462$0.28M0.1%+165.5%0.072%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd10,014$0.21M0.0%-61.9%0.053%Search for SEC Filing on Google Icon
2/18/2026Orbimed Advisors LLC574,600$11.99M0.3%N/A3.069%Search for SEC Filing on Google Icon
2/18/2026Opaleye Management Inc.214,747$4.48M0.6%N/A1.147%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC300,820$6.28M0.0%+26.3%1.607%Search for SEC Filing on Google Icon
2/18/2026Baker BROS. Advisors LP903,400$18.85M0.1%+803.4%4.826%Search for SEC Filing on Google Icon
2/18/20265AM Venture Management LLC606,660$12.66M4.0%+18.6%3.241%Search for SEC Filing on Google Icon
2/17/2026ADAR1 Capital Management LLC30,007$0.63M0.0%-46.4%0.160%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC39,109$0.82M0.0%N/A0.209%Search for SEC Filing on Google Icon
2/17/2026Braidwell LP927,524$19.35M0.6%+25.9%4.955%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC39,500$0.82M0.0%N/A0.211%Search for SEC Filing on Google Icon
2/17/2026Kotler Kevin80,000$1.67M0.4%N/A0.427%Search for SEC Filing on Google Icon
2/17/2026Monimus Capital Management LP26,594$0.56M0.4%+11.3%0.142%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP111,188$2.32M0.0%+754.2%0.594%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC199,646$4.17M0.0%+205.1%1.066%Search for SEC Filing on Google Icon
2/16/2026Kennedy Capital Management LLC209,225$4.36M0.1%+0.2%1.118%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC22,443$0.47M0.0%+24.8%0.120%Search for SEC Filing on Google Icon
2/13/2026Prosight Management LP235,000$4.90M1.0%-38.0%1.255%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP30,918$0.65M0.0%+23.3%0.165%Search for SEC Filing on Google Icon
2/13/2026State Street Corp209,125$4.36M0.0%+26.3%1.117%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN120,411$2.51M0.0%+17.5%0.643%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC19,321$0.40M0.0%-32.7%0.103%Search for SEC Filing on Google Icon
2/12/2026Aldebaran Capital LLC37,353$0.78M0.7%-3.0%0.200%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP10,075$0.21M0.0%N/A0.054%Search for SEC Filing on Google Icon
2/12/2026AlphaCentric Advisors LLC6,476$0.14M0.1%N/A0.035%Search for SEC Filing on Google Icon
2/12/2026Marex Group plc12,501$0.26M0.0%N/A0.067%Search for SEC Filing on Google Icon
2/12/2026Alps Advisors Inc.15,369$0.32M0.0%N/A0.082%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG7,589$0.16M0.0%N/A0.041%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC6,410$0.13M0.0%N/A0.034%Search for SEC Filing on Google Icon
2/11/2026BIT Capital GmbH30,000$0.63M0.0%N/A0.160%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.92,703$1.93M0.0%-4.3%0.495%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC263,560$5.50M0.0%-2.2%1.408%Search for SEC Filing on Google Icon
2/9/2026Sectoral Asset Management Inc.42,255$0.88M0.7%-78.1%0.226%Search for SEC Filing on Google Icon
2/9/2026Clearstead Advisors LLC6,500$0.14M0.0%+333.3%0.035%Search for SEC Filing on Google Icon
2/6/2026GSA Capital Partners LLP63,276$1.32M0.1%N/A0.338%Search for SEC Filing on Google Icon
1/29/2026China Universal Asset Management Co. Ltd.6,050$0.13M0.0%-12.1%0.032%Search for SEC Filing on Google Icon
1/21/2026Palumbo Wealth Management LLC13,046$0.27M0.1%N/A0.070%Search for SEC Filing on Google Icon
1/16/2026Aberdeen Group plc1,141,824$23.82M0.0%+220.6%6.101%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.5,924$93K0.0%-9.5%0.032%Search for SEC Filing on Google Icon
11/19/2025Caitong International Asset Management Co. Ltd3,966$62K0.0%+451.6%0.021%Search for SEC Filing on Google Icon
11/17/2025Woodline Partners LP200,000$3.14M0.0%-37.8%1.069%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC238,170$3.74M0.0%+218.0%1.273%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.5,134$81K0.0%-14.6%0.027%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC71,504$1.12M0.0%N/A0.382%Search for SEC Filing on Google Icon
11/17/2025Farallon Capital Management LLC640,000$10.04M0.0%-25.0%3.420%Search for SEC Filing on Google Icon
11/17/2025First Light Asset Management LLC202,393$3.18M0.3%N/A1.081%Search for SEC Filing on Google Icon
11/17/2025Citadel Advisors LLC298,388$4.68M0.0%+80.8%1.594%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE6,365$100K0.0%-8.0%0.034%Search for SEC Filing on Google Icon
11/17/2025Braidwell LP736,867$11.56M0.3%N/A3.937%Search for SEC Filing on Google Icon
11/17/2025Ally Bridge Group NY LLC138,595$2.18M1.3%-15.3%0.741%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.51,931$0.82M0.0%+141.0%0.277%Search for SEC Filing on Google Icon
11/14/2025ADAR1 Capital Management LLC56,007$0.88M0.1%-23.8%0.299%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC65,435$1.03M0.0%-23.4%0.350%Search for SEC Filing on Google Icon
11/14/2025Prosight Management LP379,254$5.95M1.4%-14.2%2.026%Search for SEC Filing on Google Icon
11/13/2025Kennedy Capital Management LLC208,776$3.28M0.1%N/A1.115%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG66,460$1.04M0.0%+94.1%0.355%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets2,422$38K0.0%-85.2%0.013%Search for SEC Filing on Google Icon
11/13/2025DLD Asset Management LP15,000$0.24M0.0%N/A0.080%Search for SEC Filing on Google Icon
11/10/2025Aldebaran Capital LLC38,502$0.60M0.6%-4.4%0.206%Search for SEC Filing on Google Icon
11/10/2025China Universal Asset Management Co. Ltd.6,880$0.11M0.0%+83.5%0.037%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.569,480$8.94M0.0%-2.6%3.044%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.5,924$93K0.0%-9.5%0.032%Search for SEC Filing on Google Icon
11/7/2025Aberdeen Group plc356,176$5.59M0.0%N/A1.904%Search for SEC Filing on Google Icon
11/3/2025AlphaQuest LLC7,299$0.12M0.0%+208.6%0.039%Search for SEC Filing on Google Icon
8/28/2025China Universal Asset Management Co. Ltd.3,750$75K0.0%+26.7%0.020%Search for SEC Filing on Google Icon
8/27/2025Squarepoint Ops LLC85,369$1.70M0.0%+61.4%0.456%Search for SEC Filing on Google Icon
8/15/2025Monimus Capital Management LP23,894$0.48M0.3%+29.4%0.128%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets16,314$0.32M0.0%+528.4%0.087%Search for SEC Filing on Google Icon
8/15/2025Boothbay Fund Management LLC45,077$0.90M0.0%-43.3%0.241%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC12,383$0.25M0.0%-15.6%0.066%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE6,922$0.14M0.0%-89.5%0.037%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.21,544$0.43M0.0%+15.0%0.115%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.6,012$0.12M0.0%N/A0.032%Search for SEC Filing on Google Icon
8/14/2025TFG Asset Management GP Ltd228,832$4.55M0.7%+22.0%1.223%Search for SEC Filing on Google Icon
8/14/2025Squarepoint Ops LLC85,369$1.70M0.0%+61.4%0.456%Search for SEC Filing on Google Icon
8/14/2025Stempoint Capital LP40,000$0.80M0.3%N/A0.214%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP10,678$0.21M0.0%-80.0%0.057%Search for SEC Filing on Google Icon
8/13/2025New York State Common Retirement Fund5,000$99K0.0%N/A0.027%Search for SEC Filing on Google Icon
8/13/2025Virtus Investment Advisers LLC4,190$83K0.0%+18.3%0.022%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers15,975$0.32M0.0%+15,875.0%0.086%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.6,548$0.13M0.0%+483.6%0.035%Search for SEC Filing on Google Icon
8/11/2025Knott David M Jr74,000$1.47M0.7%+85.0%0.396%Search for SEC Filing on Google Icon
8/8/2025Police & Firemen s Retirement System of New Jersey2,638$52K0.0%N/A0.014%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC272,257$5.41M0.0%+242.5%1.458%Search for SEC Filing on Google Icon
8/7/2025Monaco Asset Management SAM10,500$0.21M0.0%N/A0.056%Search for SEC Filing on Google Icon
8/7/2025Connor Clark & Lunn Investment Management Ltd.35,708$0.71M0.0%+3.1%0.191%Search for SEC Filing on Google Icon
7/31/2025AlphaQuest LLC2,365$47K0.0%+919.4%0.013%Search for SEC Filing on Google Icon
5/19/2025Jane Street Group LLC47,145$0.84M0.0%+58.7%0.252%Search for SEC Filing on Google Icon
5/16/2025Woodline Partners LP302,215$5.35M0.0%+132.3%1.618%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.104,793$1.86M0.0%+331.1%0.561%Search for SEC Filing on Google Icon
5/16/2025Millennium Management LLC237,938$4.21M0.0%+726.4%1.274%Search for SEC Filing on Google Icon
5/16/2025EcoR1 Capital LLC935,121$16.56M1.0%+10.1%5.008%Search for SEC Filing on Google Icon
5/16/2025Ally Bridge Group NY LLC132,222$2.34M2.1%N/A0.708%Search for SEC Filing on Google Icon
5/16/20255AM Venture Management LLC511,660$9.06M3.4%-14.2%2.740%Search for SEC Filing on Google Icon
5/16/2025Adage Capital Partners GP L.L.C.100,000$1.77M0.0%N/A0.536%Search for SEC Filing on Google Icon
5/16/2025ADAR1 Capital Management LLC62,603$1.11M0.2%+6.6%0.335%Search for SEC Filing on Google Icon
5/15/2025Baker BROS. Advisors LP100,000$1.77M0.0%N/A0.536%Search for SEC Filing on Google Icon
5/14/2025Jump Financial LLC21,126$0.37M0.0%N/A0.113%Search for SEC Filing on Google Icon
5/14/2025Wellington Management Group LLP19,660$0.35M0.0%N/A0.105%Search for SEC Filing on Google Icon
Data available starting January 2016

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Tectonic Therapeutic logo
Tectonic Therapeutic, Inc. engages in discovery and development of therapeutic proteins & antibodies. The company was founded by Timothy A. Springer and Andrew Kruse in 2019 and is headquartered in Watertown, MA.
Read More on Tectonic Therapeutic

Today's Range

Now: $29.35
Low: $29.23
High: $31.05

50 Day Range

MA: $24.99
Low: $18.80
High: $35.87

52 Week Range

Now: $29.35
Low: $13.70
High: $36.03

Volume

157,683 shs

Average Volume

383,369 shs

Market Capitalization

$551.10 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

3.76

Who are the company insiders with the largest holdings of Tectonic Therapeutic?

Tectonic Therapeutic's top insider investors include:
  1. Timothy A Springer (Director)
  2. Marcella K Ruddy (Insider)
  3. Peter Mcnamara (Insider)
  4. Daniel Lochner (CFO)
Learn More about top insider investors at Tectonic Therapeutic.

Who are the major institutional investors of Tectonic Therapeutic?

Tectonic Therapeutic's top institutional investors include:
  1. Aberdeen Group plc — 6.10%
  2. Braidwell LP — 4.95%
  3. Baker BROS. Advisors LP — 4.83%
  4. 5AM Venture Management LLC — 3.24%
  5. Orbimed Advisors LLC — 3.07%
  6. Vestal Point Capital LP — 1.75%
Learn More about top institutional investors of Tectonic Therapeutic stock.

Which institutional investors are selling Tectonic Therapeutic stock?

In the previous quarter, TECX stock was sold by these institutional investors:
  1. Sectoral Asset Management Inc.
  2. Prosight Management LP
  3. ADAR1 Capital Management LLC
  4. Quadrature Capital Ltd
  5. Jane Street Group LLC
  6. Geode Capital Management LLC
  7. Goldman Sachs Group Inc.
  8. Aldebaran Capital LLC
During the previous year, company insiders that have sold Tectonic Therapeutic company stock include:
  1. Timothy A Springer (Director)
  2. Marcella K Ruddy (Insider)
Learn More investors selling Tectonic Therapeutic stock.

Which institutional investors are buying Tectonic Therapeutic stock?

During the previous quarter, TECX stock was purchased by institutional investors including:
  1. Baker BROS. Advisors LP
  2. Aberdeen Group plc
  3. Orbimed Advisors LLC
  4. Vestal Point Capital LP
  5. Opaleye Management Inc.
  6. Braidwell LP
  7. Squarepoint Ops LLC
  8. ExodusPoint Capital Management LP
Within the previous year, these company insiders have bought Tectonic Therapeutic stock:
  1. Timothy A Springer (Director)
  2. Marcella K Ruddy (Insider)
Learn More investors buying Tectonic Therapeutic stock.

Tectonic Therapeutic Active Insiders

Daniel Lochner
Daniel Lochner (Age 43)
CFO
1 recent trades
Timothy A Springer
Timothy A Springer
Director
Marcella K Ruddy
Marcella K Ruddy
Insider
1 recent trades
Peter Mcnamara
Peter Mcnamara (Age 54)
Insider
3 recent trades