RNTX Institutional Ownership
Who owns Rein Therapeutics, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 60 funds reported holding RNTX at Jun 30, 2026, together owning 47.3% of the company.
- ▲38 buying vs 9 selling
- ▲Held by funds +34.1 pts
- ▲Funds holding +14
- ●Superinvestors: 1 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 60 | 46 | +30.4% |
| In funds' top 10 | 1 | 1 | 0.0% |
| 13F shares | 40.8M | 11.4M | +258.4% |
| Held by funds | 47.3% | 13.2% | +34.1 pts |
| New positions | 19 | 8 | +137.5% |
| Increased | 19 | 14 | +35.7% |
| Reduced | 3 | 4 | −25.0% |
| Sold out | 6 | 9 | −33.3% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in RNTX
All superinvestors →
Who owns RNTX
share of fund held shares- Index and passive funds13.2%
- Active managers and hedge funds84.4%
- Banks and brokers1.1%
- Pensions, insurers and other1.3%
The top 10 holders own 78.9% of all RNTX shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
7 funds changed their position- Sanders Morris Harris LLCNew+20K sh
- Certuity, LLCNew+18K sh
- Chicago Partners Investment Group LLCTrimmed−11K sh
- Prime Capital Investment Advisors, LLCTrimmed−5,000 sh
- Sigma Planning CorpAdded+3,800 sh
🔒 Free account: see all 7.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Voss Capital, LP | 6.10% | 5.3M | $5.5M | +874K |
| 2 | Cable Car Capital, LP | 6.02% | 5.2M | $5.4M | +4.8M |
| 3 | ADAR1 Capital Management, LLC | 5.22% | 4.5M | $4.7M | +4.5M |
| 4 | Vanguard Capital Management LLC | 3.92% | 3.4M | $3.5M | +2.4M |
| 5 | BIOS Capital Management, LP | 3.46% | 3M | $3.1M | +1M |
| 6 | Ikarian Capital, LLC | 3.42% | 3M | $3.1M | +3M |
| 7 | Great Point Partners LLC | 2.98% | 2.6M | $2.7M | +2.6M |
| 8 | Citadel Advisors LLC | 2.83% | 2.4M | $2.5M | +2.4M |
| 9 | Velan Capital Investment Management LP | 1.97% | 1.7M | $1.8M | +1.7M |
| 10 | Senvest Management, LLC | 1.43% | 1.2M | $1.3M | +1M |
- Cable Car Capital, LP+4.8M sh+$5M
- ADAR1 Capital Management, LLC+4.5M sh+$4.7M
- Ikarian Capital, LLC+3M sh+$3.1M
- Great Point Partners LLC+2.6M sh+$2.7M
- Citadel Advisors LLC+2.4M sh+$2.5M
- Vanguard Capital Management LLC+2.4M sh+$2.5M
- Velan Capital Investment Management LP+1.7M sh+$1.8M
- Senvest Management, LLC+1M sh+$1M
- Two Sigma Securities, LLC−32K sh−$41K
- Sanders Morris Harris LLC−20K sh−$26K
- Hrt Financial LP−15K sh−$20K
- HighTower Advisors, LLC−10K sh−$13K
- Gagnon Securities LLC−10K sh−$11K
- Renaissance Technologies LLC−5,500 sh−$6K
- Tower Research Capital LLC (TRC)−3,391 sh−$4K
- Wells Fargo & Company/mn−20 sh−$26
RNTX institutional ownership FAQ
Who owns the most RNTX stock?
In Q2 2026 13F filings the largest holder of RNTX was Voss Capital, LP, followed by Cable Car Capital, LP and ADAR1 Capital Management, LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of RNTX is owned by institutions?
Funds that file 13F reports held 47.3% of RNTX's shares at Jun 30, 2026, compared with 13.2% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying RNTX?
In Q2 2026, 38 funds bought RNTX (19 of them new positions) and 9 sold (6 sold out completely). Among well known investors, 1 added and 1 cut. Our fund sentiment for RNTX is bullish.
What is RNTX's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this RNTX ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.