Massivemarkets

OSTX

OS Therapies Incorporated

NYSE American · usd

$1.24-0.06 (-4.62%)
At close · 15-minute delayed
$1.24+0.02 (+1.61%)
As of 8:00:00 PM EDT on Oct 30, 2026 · After hours

OS Therapies Incorporated (OSTX) trades at $1.24 (-4.62%) as of 8:00:00 PM EDT on Oct 30, 2026, -22.98% over the past month. Market cap is $58.04M, with 2.9 days to cover in short interest.

Stock performance

How OS Therapies Incorporated (OSTX) stock has performed from one day to one year, with its 52-week range.

-3.08%
-$0.04 over 1D
$1.22$1.26$1.30$1.334:00 AM10:50 AM12:45 PM2:40 PM8:00 PM$1.26
1D
-4.62%
1W
-0.80%
1M
-22.98%
YTD
-11.43%
1Y
-33.69%
52-wk range
$1.15 – $2.25

Key statistics

Today's trading snapshot for OSTX: day range, open, previous close, volume and market cap.

Day range
$1.21 – $1.28
Open
$1.27
Prev close
$1.30
Volume
321.73K
Market cap
$58.04M
Shares out
4.59M

Valuation and profitability ratios: P/E, P/S, ROE

Valuation and profitability ratios for OS Therapies Incorporated: P/E, P/S, P/B, ROE and more.

P/E
—
P/S
—
P/B
-4.87
P/FCF
—
ROE
330.4%
ROA
-397.8%
Debt/Equity
-0.01
Div yield
0.00%

As of Oct 30, 2026

8-K filings

Material corporate events OS Therapies Incorporated has disclosed to the SEC on Form 8-K.

  • Warrant or conversionOct 19, 2026

    On October 15, 2026, the Company completed an initial Closing of the Inducement Offer, at which seven Holders exercised, or pre-funded the exercise of, Existing Warrants to purchase an aggregate of 5,517,253 shares of the Company's common stock and, in exchange, the Company issued to such Holders New Warrants to purchase up to an aggregate of 5,517,253 shares of the Company's common stock.

  • Executive compensation changeOct 5, 2026

    In connection with Mr. Clem's appointment as Chief Commercial Officer, the Company entered into an employment agreement with Mr. Clem setting forth the terms of his employment and initial compensation.

  • Annual meeting resultsSep 9, 2026

    The stockholders ratified the appointment of MaloneBailey, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026, which required the affirmative vote of the majority of shares of stock present, in person or by proxy, and entitled to vote.

  • Underwriting agreementAug 21, 2026

    On August 21, 2026, OS Therapies Incorporated (the "Company") entered into an Open Market Sale Agreement℠ (the "Sales Agreement") with Jefferies LLC (the "Sales Agent"), pursuant to which the Company may offer and sell shares of its common stock from time to time through or to the Sales Agent in connection with the Company's "at the market offering" program (the "ATM Offering").

  • Debt issuanceAug 12, 2026

    senior secured convertible promissory notes in an aggregate subscription amount of up to $10,000,000... The Notes bear interest at a rate of 9.0% per annum... Each tranche of the Note matures on the date that is nine months following the applicable advance date.

OSTX short interest

How heavily OSTX is shorted: shares short, days to cover and average daily volume.

Days to cover
2.9
Short interest
2.82M
Avg volume
963.53K

As of · reported to FINRA twice monthly.

OSTX news

The latest news and headlines about OS Therapies Incorporated (OSTX).

Frequently asked questions

What is the OS Therapies Incorporated (OSTX) stock price today?

OS Therapies Incorporated (OSTX) is trading at $1.24 (-4.62% on the day) as of 8:00:00 PM EDT on Oct 30, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

What is OS Therapies Incorporated?

OS Therapies Inc is a clinical stage biopharmaceutical company focused on the identification, development and commercialization of treatments for Osteosarcoma (OS) and other solid tumors.

What is the short interest in OSTX?

As of Oct 15, 2026, OSTX has 2.82M shares short and 2.9 days to cover.

What exchange is OSTX listed on?

OS Therapies Incorporated (OSTX) trades on NYSE American in USD, in the PHARMACEUTICAL PREPARATIONS industry.

Build with AI

Build an analysis of OSTX with your agent

Point Claude or ChatGPT at the Massive MCP server and recreate this page from live data.

Connect the Massive MCP server (API reference: massive.com/docs/llms.txt) and build a OSTX analysis: the latest quote, key ratios (P/E, P/S, ROE), short interest, recent insider activity and the latest news.

Live market data from the Massive API and MCP.Get a free API key

Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.