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O

OS Therapies OSTX · USD

Health Care · US listing · 🇺🇸 United States

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0.92

-7.99%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
Einodmil LLC2.7m7.57%−142k7 May 2025
Romness (Paul A.)2.5m7.02%—28 Mar 2025
Ayala Pharmaceuticals Inc2.2m6.15%+2.2m9 Apr 2025
CM Management, LLC375k1.07%+75k30 Jun 2025
Search (Theodore F. Pharm.D.)237.9k0.68%—28 Mar 2025
Ciccio (John)237.9k0.68%—28 Mar 2025
Petit (Robert G)200k0.57%—28 Mar 2025
Acevedo (Christopher p)109.4k0.31%—28 Mar 2025
UBS Financial Services, Inc.52.8k0.15%+52.8k30 Jun 2025
Ingalls & Snyder LLC (Asset Management)36.7k0.10%—30 Jun 2025
XTX Markets LLC33.5k0.10%+33.5k30 Jun 2025
BlackRock Institutional Trust Company, N.A.26.8k0.08%−8.5k30 Jun 2025
Bridgeway Capital Management, LLC25k0.07%+25k30 Jun 2025
Auerbach (Shalom)23.4k0.07%—7 May 2025
Virtu Americas LLC21.5k0.06%+21.5k30 Jun 2025

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

2.8m

+8.7% on the period before. 2.9 days to cover.

Short volume

Share of the day's trading sold short, 5 Nov 2026

58.9%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 18 Sept 202614,528 shares
  • 16 Sept 20261,877 shares
  • 11 Sept 202610,574 shares
  • 25 Aug 20263,370 shares
  • 21 Aug 20263,400 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.