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Buy Day today: Good (62) Broad market participation · no major macro event
RNTX

Rein Therapeutics Inc

Healthcare · Biotechnology

0.7892$ +12.4% vs. previous close Closing price · As of: Sep 17, 2026

Ownership

Ownership Structure

Who owns Rein Therapeutics Inc (RNTX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 76.3% of the shares are freely tradable; institutional investors hold 24.6%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 24.6%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 5.5%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 76.3%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 0.8%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 86Mio.

Largest Shareholders

Institutions

Institutions RNTX
Name Stake (%) Shares Change (%) Date
Voss Capital LLC 6.10 5,261,921 +19.9 06/30/2026
BIOS CAPITAL MANAGEMENT, LP 3.46 2,982,375 +50.4 06/30/2026
Great Point Partners LLC 2.98 2,575,000 +0.0 06/30/2026
Citadel Advisors Llc 2.83 2,438,711 +0.0 06/30/2026
Velan Capital Investment Management LP 1.97 1,700,000 +0.0 06/30/2026
Prosight Management, LP 1.28 1,100,000 +167.2 06/30/2026
Vanguard Capital Management, LLC 1.16 998,521 +0.0 03/31/2026
University Of Texas Investment Mgmt Co 0.59 511,610 +0.0 06/30/2026

Funds

Funds RNTX
Name Stake (%) Shares Change (%) Date
Vanguard MStar Total Stk Mkt Idx Invest 2.92 2,522,901 +0.0 07/31/2026
Vanguard Institutional Extnd Mkt Idx Tr 0.91 785,543 +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 17, 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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