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OSTX Insider Trading

Insider Ownership Percentage: 10.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $628,209.00

OS Therapies Insider Trading History Chart

This chart shows the insider buying and selling history at OS Therapies by year and by quarter.

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OS Therapies Share Price & Price History

Current Price: $1.82
Price Change: ▲ Price Increase of +0.07 (4.00%)
As of 12/4/2025 05:10 PM ET

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

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Days: 30 | 90 | 365

OS Therapies Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/7/2025Shalom AuerbachMajor ShareholderSell82,000$2.00$164,000.002,664,199View SEC Filing Icon  
4/9/2025Shalom AuerbachMajor ShareholderSell50,012$1.35$67,516.202,756,199View SEC Filing Icon  
2/14/2025Shalom AuerbachMajor ShareholderSell100,000$2.84$284,000.002,431,211View SEC Filing Icon  
1/15/2025Shalom AuerbachMajor ShareholderSell16,720$6.74$112,692.802,531,211View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for OS Therapies (NYSEAMERICAN:OSTX)

Institutional Buying and Selling by Quarter

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

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OS Therapies Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Susquehanna International Group LLP14,961$29K0.0%N/A0.047%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV20,440$40K0.0%N/A0.065%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC93,574$0.18M0.0%N/A0.296%Search for SEC Filing on Google Icon
11/14/2025Virtu Financial LLC75,801$0.15M0.0%+252.0%0.239%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP86,247$0.17M0.0%N/A0.273%Search for SEC Filing on Google Icon
11/13/2025CM Management LLC400,000$0.78M0.6%+6.7%1.264%Search for SEC Filing on Google Icon
11/6/2025Ground Swell Capital LLC20,462$40K0.1%N/A0.065%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC25,000$47K0.0%N/A0.089%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd33,489$63K0.0%N/A0.119%Search for SEC Filing on Google Icon
5/9/2025CM Management LLC300,000$0.46M0.5%+172.6%1.385%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC29,836$0.13M0.0%-50.6%0.136%Search for SEC Filing on Google Icon
2/7/2025CM Management LLC110,044$0.47M0.4%+120.1%0.511%Search for SEC Filing on Google Icon
11/20/2024Virtu Financial LLC10,045$28K0.0%N/A0.047%Search for SEC Filing on Google Icon
Data available starting January 2016

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OS Therapies logo
OS Therapies Incorporated, a clinical stage biopharmaceutical company, focuses on the identification, development, and commercialization of treatments for osteosarcoma and other solid tumors in the United States. Its pipeline includes OST-HER2, an off-the-shelf immunotherapy for osteosarcoma patients; and OST-tunable drug conjugate (OST-tADC), an antibody-drug conjugate technology, with a plug-and-play platform that features tunable pH sensitive silicone linkers. OS Therapies Incorporated was incorporated in 2018 and is based in Rockville, Maryland.
Read More on OS Therapies

Today's Range

Now: $1.82
Low: $1.75
High: $1.82

50 Day Range

MA: $1.86
Low: $1.62
High: $2.07

52 Week Range

Now: $1.82
Low: $1.12
High: $7.00

Volume

191,336 shs

Average Volume

235,828 shs

Market Capitalization

$64.08 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

N/A

Who are the company insiders with the largest holdings of OS Therapies?

OS Therapies' top insider shareholders include:
  1. Shalom Auerbach (Major Shareholder)
Learn More about top insider investors at OS Therapies.

Who are the major institutional investors of OS Therapies?

OS Therapies' top institutional shareholders include:
  1. CM Management LLC — 1.26%
  2. Millennium Management LLC — 0.30%
  3. Two Sigma Investments LP — 0.27%
  4. Virtu Financial LLC — 0.24%
  5. Ground Swell Capital LLC — 0.06%
  6. Mercer Global Advisors Inc. ADV — 0.06%
Learn More about top institutional investors of OS Therapies stock.

Which major investors are buying OS Therapies stock?

During the previous quarter, OSTX stock was acquired by institutional investors including:
  1. Millennium Management LLC
  2. Two Sigma Investments LP
  3. Virtu Financial LLC
  4. CM Management LLC
  5. Ground Swell Capital LLC
  6. Mercer Global Advisors Inc. ADV
  7. Susquehanna International Group LLP