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Buy Day today: Neutral (51) Mixed market breadth · no major macro event
JSPR

Jasper Therapeutics Inc

Healthcare · Biotechnology

0.6178$ -2.6% vs. previous close Closing price · As of: Sep 18, 2026

Ownership

Ownership Structure

Who owns Jasper Therapeutics Inc (JSPR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.2% of the shares are freely tradable; institutional investors hold 60.5%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 60.5%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 1.2%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 90.2%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 16.8%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 33Mio.

Largest Shareholders

Institutions

Institutions JSPR
Name Stake (%) Shares Change (%) Date
Velan Capital Investment Management LP 8.02 2,668,395 +0.0 06/30/2026
Kingdon Capital Management LLC 4.06 1,352,106 +0.0 06/30/2026
Morgan Stanley - Brokerage Accounts 4.01 1,333,420 -32.3 03/31/2026
Vanguard Capital Management, LLC 3.52 1,172,597 +0.0 03/31/2026
Rock Springs Capital Management LP 3.31 1,100,726 +0.0 06/30/2026
The Carlyle Group Inc 3.20 1,066,189 +0.0 06/30/2026
BOOTHBAY FUND MANAGEMENT, LLC 1.75 582,751 -26.6 03/31/2026
GSA Capital Partners LLP 1.61 534,697 +2,701.8 06/30/2026
Millennium Management LLC 1.46 486,933 -69.9 06/30/2026

Funds

Funds JSPR
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.50 833,391 +0.0 07/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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