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, Q1 2026
Institutional positions in Rein Therapeutics, Inc. as of Mar 31, 2026. 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
- 46
- +2 vs. Q4 2025
- Shares held
- 11.4M
- +1.78M (+18.6%) vs. Q4 2025
- Total value
- $14.8M
- +$3.67M (+32.9%) vs. Q4 2025
- New holders
- 11
- 14 more added
- Sold out
- 9
- 4 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Rein Therapeutics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Acadian Asset Management LLC | 17 | $0 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 3 | $4 | 0.00% | +3 | New |
| Ronald Blue Trust, Inc. | 20 | $26 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 20 | $26 | 0.00% | +20 | New |
| Newbridge Financial Services Group, Inc. | 97 | $126 | 0.00% | +97 | New |
| UBS Group AG | 1,024 | $1.33K | 0.00% | −8,492−89.2% | Reduced |
| US Bancorp | 1,250 | $1.63K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 1,590 | $2.07K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,391 | $4.41K | 0.00% | +1,434+73.3% | Added |
| Rockefeller Capital Management L.P. | 5,097 | $6.63K | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 10,000 | $13.0K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 12,774 | $16.6K | 0.00% | +12,774 | New |
| Steel Peak Wealth Management LLC | 13,000 | $16.9K | 0.00% | +13,000 | New |
| HRT Financial LP | 15,486 | $20.0K | 0.00% | −17,751−53.4% | Reduced |
| Annandale Capital, LLC | 15,026 | $20.0K | 0.00% | 00.0% | Unchanged |
| Cane Capital Partners, LLC | 18,000 | $23.4K | 0.01% | 00.0% | Unchanged |
| Ancora Advisors, LLC | 20,000 | $26.0K | 0.00% | 00.0% | Unchanged |
| Sanders Morris Harris LLC | 20,000 | $26.0K | 0.00% | +20,000 | New |
| Gleason Group, Inc. | 22,389 | $29.1K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 24,500 | $31.9K | 0.00% | +1,800+7.9% | Added |
| Americana Partners, LLC | 27,302 | $35.5K | 0.00% | +10,000+57.8% | Added |
| Meridian Wealth Advisors, LLC | 28,486 | $37.0K | 0.00% | 00.0% | Unchanged |
| Exencial Wealth Advisors, LLC | 30,528 | $39.7K | 0.00% | +30,528 | New |
| Two Sigma Securities, LLC | 31,713 | $41.2K | 0.00% | +14,459+83.8% | Added |
| XTX Topco Ltd | 32,924 | $42.8K | 0.00% | +32,924 | New |
| Mercer Global Advisors Inc | 35,461 | $46.1K | 0.00% | +17,500+97.4% | Added |
| Northwestern Mutual Wealth Management Co | 42,440 | $55.2K | 0.00% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 41,048 | $77.2K | 0.00% | +10,000+32.2% | Added |
| Northern Trust Corp | 64,136 | $83.4K | 0.00% | +23,667+58.5% | Added |
| BlackRock, Inc. | 68,528 | $89.1K | 0.00% | +13,522+24.6% | Added |
| State Street Corp | 75,904 | $98.7K | 0.00% | 00.0% | Unchanged |
| ABS Direct Equity Fund LLC | 125,000 | $162.5K | 0.12% | 00.0% | Unchanged |
| Rock Creek Group, LP | 125,000 | $162.5K | 0.02% | +25,000+25.0% | Added |
| Vanguard Fiduciary Trust Co | 154,512 | $200.9K | 0.00% | +154,512 | New |
| Palogic Value Management, L.P. | 180,000 | $234.0K | 0.10% | +180,000 | New |
| Senvest Management, LLC | 230,895 | $300.2K | 0.01% | 00.0% | Unchanged |
| Gagnon Securities LLC | 239,520 | $311.4K | 0.07% | −700−0.3% | Reduced |
| Texas Capital Bank Wealth Management Services Inc | 273,625 | $355.7K | 0.02% | +11,500+4.4% | Added |
| Geode Capital Management, LLC | 344,690 | $448.2K | 0.00% | +60,135+21.1% | Added |
| Sigma Planning Corp | 348,677 | $453.3K | 0.01% | +101,400+41.0% | Added |
| Prosight Management, LP | 411,600 | $535.1K | 0.09% | −31,000−7.0% | Reduced |
| Cable Car Capital LLC | 420,000 | $546.0K | 0.19% | 00.0% | Unchanged |
| University of Texas/Texas Am Investment Managment Co | 511,610 | $665.1K | 0.10% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 998,521 | $1.30M | 0.00% | +998,521 | New |
| BIOS Capital Management, LP | 1,982,375 | $2.58M | 4.87% | +291,624+17.2% | Added |
| Voss Capital, LLC | 4,388,362 | $5.70M | 0.33% | +144,393+3.4% | Added |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −120,083−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −61,960−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −58,995−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −41,709−100.0% | Sold out |
| KG&L Capital Management,LLC | 0 | $0 | 0.00% | −18,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −13,663−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −12,364−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| New Millennium Group LLC | – | – | – | – | Not filed |
| Motiv8 Investments LLC | – | – | – | – | Not filed |