Rein Therapeutics, Inc.
RNTX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001420565
No open-market purchases or sales by Rein Therapeutics, Inc. insiders were filed in the last 90 days; 59 institutions reported holding it in 13F filings for Q2 2026, worth $42.3M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Rein Therapeutics, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 48
- +9 vs. Q3 2025
- Shares held
- 10.8M
- +2.33M (+27.6%) vs. Q3 2025
- Total value
- $12.5M
- +$2.84M (+29.2%) vs. Q3 2025
- New holders
- 13
- 14 more added
- Sold out
- 4
- 5 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RNTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 59 | $42.3M |
| Q1 2026 | 46 | $14.8M |
| Q4 2025 | 48 | $12.5M |
| Q3 2025 | 40 | $9.76M |
| Q2 2025 | 36 | $9.30M |
| Q1 2025 | 39 | $10.6M |
| Q4 2024 | 31 | $13.1M |
| Q3 2024 | 32 | $16.3M |
| Q2 2024 | 29 | $13.5M |
| Q1 2024 | 23 | $11.0M |
| Q4 2023 | 20 | $3.24M |
| Q3 2023 | 16 | $1.59M |
| Q2 2023 | 17 | $1.83M |
| Q1 2023 | 19 | $1.30M |
| Q4 2022 | 19 | $3.21M |
| Q3 2022 | 33 | $5.86M |
| Q2 2022 | 37 | $8.34M |
| Q1 2022 | 42 | $16.5M |
| Q4 2021 | 43 | $18.9M |
| Q3 2021 | 43 | $33.6M |
| Q2 2021 | 47 | $41.5M |
| Q1 2021 | 52 | $48.0M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Rein Therapeutics, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Voss Capital, LLC | 4,243,969 | $4.92M | 0.26% | +1,577,437+59.2% | Added |
| BIOS Capital Management, LP | 1,690,751 | $1.96M | 2.37% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,165,807 | $1.35M | 0.00% | −2,600−0.2% | Reduced |
| University of Texas/Texas Am Investment Managment Co | 511,610 | $593.5K | 0.08% | 00.0% | Unchanged |
| Prosight Management, LP | 442,600 | $513.4K | 0.11% | −125,298−22.1% | Reduced |
| Cable Car Capital LLC | 420,000 | $487.2K | 0.03% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 284,555 | $330.2K | 0.00% | +37,244+15.1% | Added |
| Texas Capital Bank Wealth Management Services Inc | 262,125 | $304.1K | 0.02% | +235,954+901.6% | Added |
| Sigma Planning Corp | 247,277 | $298.6K | 0.01% | −6,550−2.6% | Reduced |
| Gagnon Securities LLC | 240,220 | $278.7K | 0.06% | +11,528+5.0% | Added |
| Senvest Management, LLC | 230,895 | $267.8K | 0.01% | 00.0% | Unchanged |
| ABS Direct Equity Fund LLC | 125,000 | $145.0K | 0.17% | +125,000 | New |
| Citadel Advisors LLC | 120,083 | $139.3K | 0.00% | +91,882+325.8% | Added |
| Rock Creek Group, LP | 100,000 | $116.0K | 0.01% | +100,000 | New |
| State Street Corp | 75,904 | $88.0K | 0.00% | +59,900+374.3% | Added |
| Jane Street Group, LLC | 61,960 | $71.9K | 0.00% | +61,960 | New |
| Susquehanna International Group, LLP | 58,995 | $68.4K | 0.00% | +28,135+91.2% | Added |
| BlackRock, Inc. | 55,006 | $63.8K | 0.00% | +2,132+4.0% | Added |
| Northwestern Mutual Wealth Management Co | 42,440 | $49.2K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 41,709 | $48.4K | 0.00% | +41,709 | New |
| Northern Trust Corp | 40,469 | $46.9K | 0.00% | +14,706+57.1% | Added |
| Chicago Partners Investment Group LLC | 31,048 | $42.5K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 33,237 | $38.0K | 0.00% | +33,237 | New |
| Meridian Wealth Advisors, LLC | 28,486 | $33.0K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 22,700 | $26.3K | 0.00% | +4,402+24.1% | Added |
| Gleason Group, Inc. | 22,389 | $26.0K | 0.00% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 20,000 | $23.2K | 0.00% | +20,000 | New |
| Global Retirement Partners, LLC | 19,316 | $22.4K | 0.00% | +12,116+168.3% | Added |
| KG&L Capital Management,LLC | 18,000 | $20.9K | 0.01% | 00.0% | Unchanged |
| Cane Capital Partners, LLC | 18,000 | $20.9K | 0.01% | +18,000 | New |
| Mercer Global Advisors Inc | 17,961 | $20.8K | 0.00% | +7,500+71.7% | Added |
| Americana Partners, LLC | 17,302 | $20.1K | 0.00% | 00.0% | Unchanged |
| Two Sigma Securities, LLC | 17,254 | $20.0K | 0.00% | +17,254 | New |
| Annandale Capital, LLC | 15,026 | $17.0K | 0.00% | +15,026 | New |
| Virtu Financial LLC | 13,663 | $16.0K | 0.00% | +13,663 | New |
| Cetera Investment Advisers | 12,364 | $14.3K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 10,000 | $11.6K | 0.00% | +10,000 | New |
| UBS Group AG | 9,516 | $11.0K | 0.00% | +9,433+11,365.1% | Added |
| Rockefeller Capital Management L.P. | 5,097 | $5.91K | 0.00% | 00.0% | Unchanged |
| New Millennium Group LLC | 2,038 | $2.36K | 0.00% | +2,038 | New |
| Tower Research Capital LLC (TRC) | 1,957 | $2.27K | 0.00% | −3,072−61.1% | Reduced |
| JFS Wealth Advisors, LLC | 1,590 | $1.84K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 1,250 | $1.45K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 70 | $81 | 0.00% | +35+100.0% | Added |
| Bank of America Corp | 42 | $49 | 0.00% | −58−58.0% | Reduced |
| Ronald Blue Trust, Inc. | 20 | $23 | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 17 | $0 | 0.00% | 00.0% | Unchanged |
| Motiv8 Investments LLC | 25 | $0 | 0.00% | +25 | New |
| Exencial Wealth Advisors, LLC | 0 | $0 | 0.00% | −30,528−100.0% | Sold out |
| Blair William & Co | 0 | $0 | 0.00% | −23,393−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −14,984−100.0% | Sold out |
| Warberg Asset Management LLC | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| KCK Ltd. | – | – | – | – | Not filed |