Rein TherapeuticsRNTX
13F holders, Q1 2026 (March 31)46holders −2
8new positions
9sold out
1famous investor
$1.30avg. 13F price*
At the end of Q1 2026, 46 institutions reported holding Rein Therapeutics Inc. (RNTX) in their 13F filings, down 2 from Q4 2025. 8 opened new positions and 9 sold out. The largest holders were Voss Capital, LP ($5.7M), BIOS Capital Management, LP ($2.6M) and Vanguard Capital Management LLC ($1.3M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Rein Therapeutics Inc.
- CUSIP
- 00887A204
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 8 | $360K |
| Exits | 9 | $379K |
All 13F filers, Q4 2025 → Q1 2026: 1,003,006 shares bought and 384,829 shares sold, net +618,177 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 46 holders
| Voss Capital, LP | 0.33% | Add +3.4% | 4,388,362 | $5.7M |
| BIOS Capital Management, LP | 4.87% | Add +17.3% | 1,982,375 | $2.6M |
| Vanguard Capital Management LLC | 0.00% | — | 998,521 | $1.3M |
| University of Texas/Texas Am Investment Management Co. | 0.10% | No change | 511,610 | $665K |
| Cable Car Capital, LP | 0.23% | No change | 420,000 | $546K |
| Prosight Management, LP | 0.09% | Reduce -7.0% | 411,600 | $535K |
| Sigma Planning Corp | 0.01% | Add +41.0% | 348,677 | $453K |
| Geode Capital Management, LLC | 0.00% | Add +21.1% | 344,690 | $448K |
| Texas Capital Bank Wealth Management Services Inc | 0.02% | Add +4.4% | 273,625 | $356K |
| Gagnon Securities LLC | 0.07% | Reduce -0.3% | 239,520 | $311K |
| Senvest Management, LLC | 0.01% | No change | 230,895 | $300K |
| Palogic Value Management, L.P. | 0.10% | New | 180,000 | $234K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 154,512 | $201K |
| ABS Direct Equity Fund LLC | 0.12% | No change | 125,000 | $163K |
| Rock Creek Group LLC | 0.02% | Add +25.0% | 125,000 | $163K |
| State Street Corp. | 0.00% | No change | 75,904 | $99K |
| BlackRock, Inc. | 0.00% | Add +24.6% | 68,528 | $89K |
| Northern Trust Corp. | 0.00% | Add +58.5% | 64,136 | $83K |
| Chicago Partners Investment Group LLC | 0.00% | Add +32.2% | 41,048 | $77K |
| Northwestern Mutual Wealth Management Co. | 0.00% | No change | 42,440 | $55K |
| Mercer Global Advisors Inc. | 0.00% | Add +97.4% | 35,461 | $46K |
| XTX Topco Ltd | 0.00% | New | 32,924 | $43K |
| Two Sigma Securities, LLC | 0.00% | Add +83.8% | 31,713 | $41K |
| Exencial Wealth Advisors, LLC | 0.00% | New | 30,528 | $40K |
| Meridian Wealth Advisors, LLC | 0.00% | No change | 28,486 | $37K |
| Americana Partners, LLC | 0.00% | Add +57.8% | 27,302 | $35K |
| Renaissance Technologies | 0.00% | Add +7.9% | 24,500 | $32K |
| Gleason Group, Inc. | 0.00% | No change | 22,389 | $29K |
| Sanders Morris Harris LLC | 0.00% | New | 20,000 | $26K |
| Ancora Advisors LLC | 0.00% | No change | 20,000 | $26K |
| Cane Capital Partners, LLC | 0.01% | No change | 18,000 | $23K |
| Annandale Capital, LLC | 0.00% | No change | 15,026 | $20K |
| HRT Financial LP | 0.00% | Reduce -53.4% | 15,486 | $20K |
| SteelPeak Wealth, LLC | 0.00% | New | 13,000 | $17K |
| Vanguard Global Advisers, LLC | 0.00% | — | 12,774 | $17K |
| HighTower Advisors, LLC | 0.00% | No change | 10,000 | $13K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 5,097 | $7K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +73.3% | 3,391 | $4K |
| JFS Wealth Advisors, LLC | 0.00% | No change | 1,590 | $2K |
| US Bancorp \de | 0.00% | No change | 1,250 | $2K |
| UBS Group AG | 0.00% | Reduce -89.2% | 1,024 | $1K |
| NFSG Corp | 0.00% | New | 97 | $126 |
| Wells Fargo & Company | 0.00% | New | 20 | $26 |
| Blue Trust, Inc. | 0.00% | No change | 20 | $26 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 3 | $4 |
| Acadian Asset Management LLC | 0.00% | No change | 17 | $0 |
"% of holder's portfolio" is RNTX's weight in each manager's 13F, not the share of Rein Therapeutics Inc. the manager owns.