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DaveManuel.com · Institutional Ownership · Who Owns It

OS THERAPIES INCORPORATED (OSTX)

Institutional ownership reported to the SEC as of Q2 2026, across 9 quarters.

30
Reporting holders
$6.0M
Reported value
6.8%
Of shares outstanding
0.0%
Calls
0.0%
Puts
+0
Holder change

Institutions report 3,145,442 shares against 46,125,825 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
VANGUARD CAPITAL MANAGEMENT LLC$1.5M777,6510.00%2q+65.6%+$585.5K
HOWARD FINANCIAL SERVICES, LTD.$942.4K496,0020.05%2q+102.1%+$476.1K
CM Management, LLC$760.0K400,0000.48%8qHELD
GEODE CAPITAL MANAGEMENT, LLC$573.4K301,7940.00%4q+7.8%+$41.3K
BlackRock, Inc.$460.7K242,4790.00%7q+274.4%+$337.6K
VANGUARD FIDUCIARY TRUST CO$330.9K174,1320.00%2q+49.3%+$109.2K
STATE STREET CORP$228.2K120,1000.00%4q+31.7%+$54.9K
MARSHALL WACE, LLP$191.2K100,6400.00%newNEW
HighTower Advisors, LLC$162.5K85,5500.00%2q+462.8%+$133.7K
NORTHERN TRUST CORP$134.6K70,8170.00%4q+7.2%+$9.0K
Beacon Pointe Advisors, LLC$118.8K62,5070.00%2qHELD
BRIDGEWAY CAPITAL MANAGEMENT, LLC$85.5K45,0000.00%5q+80.0%+$38.0K
INGALLS & SNYDER LLC$70.0K36,6760.00%6qHELD
TWO SIGMA INVESTMENTS, LP$57.8K30,4140.00%4q+15.3%+$7.7K
STIFEL FINANCIAL CORP$53.0K27,9000.00%6q+86.0%+$24.5K
JANE STREET GROUP, LLC$51.3K26,9990.00%3q-33.0%-$25.3K
AXQ CAPITAL, LP$46.8K24,6230.01%newNEW
Vanguard Global Advisers, LLC$39.8K20,9580.00%2qHELD
Stratos Wealth Advisors, LLC$36.7K19,3140.00%3q+39.8%+$10.4K
Quadrature Capital Ltd$29.8K15,6620.00%newNEW
JONES FINANCIAL COMPANIES LLLP$27.3K14,5010.00%4q+12.2%+$3.0K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$25.7K13,5320.00%2q-97.0%-$826.9K
MORGAN STANLEY$24.7K13,0000.00%7q+37.0%+$6.7K
UBS Group AG$16.7K8,8130.00%5q-97.5%-$645.8K
Rockefeller Capital Management L.P.$14.2K7,5000.00%newNEW
Steward Partners Investment Advisory, LLC$10.8K5,6810.00%newNEW
BARCLAYS PLC$2.9K1,5340.00%newNEW
BFC Planning, Inc.$2.9K1,5000.00%7q+15.4%
ARMSTRONG ADVISORY GROUP, INC$1901000.00%8qHELD
Caitong International Asset Management Co., Ltd$120630.00%2q+270.6%

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-10-192026-10-15Material agreement enteredfiling
2026-10-052026-09-29Directors or officers departed or appointed Material agreement enteredfiling
2026-09-092026-09-09Directors or officers departed or appointedfiling
2026-08-212026-08-21Material agreement enteredfiling
2026-08-122026-08-06Material agreement enteredfiling
2026-08-062026-07-31Material agreement enteredfiling

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 20264$429.1K268,1571020.0%
Q2 202630$6.0M3,145,44261630.0%
Q1 202630$4.1M2,898,8708820.0%
Q4 202525$2.5M1,776,5696840.0%
Q3 202526$3.1M1,564,53413520.0%
Q2 202514$1.1M605,0277310.0%
Q1 20257$600.5K390,0862310.0%
Q4 20246$623.5K145,6862110.0%
Q3 20247$447.8K160,0437000.0%