RNTX
Rein Therapeutics, Inc.
$0.99
+0.01 (+1.38%)
At close · Jul 2
Market Cap
$84.81M
Shares
85,539,032
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 46
Total Value: $14,815,488
Total Shares: 11,396,541
Institutional Ownership Trend
14 quarters
Holder Concentration
Across 46 13F filers · Δ vs Dec 31, 2025Top Holder
38.5%
−0.8 pts
Top 5
72.8%
−1.7 pts
Top 10
87.0%
−1.0 pts
HHI
1,950
Moderately concentrated−43
Quarterly Activity
vs Dec 31, 2025
New
11
Increased
13
Decreased
5
Sold Out
13
Unchanged
17
Holder count:
-2
Institutional value:
-16.4%
Shares held:
-25.4%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Micro BIOS Capital Management, LP | +291,624 | 1,982,375 | |
| Mid Sigma Planning Corp | +101,400 | 348,677 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +60,135 | 344,690 | |
| Small Rock Creek Group LLC | +25,000 | 125,000 | |
| Mega NORTHERN TRUST CORP | +23,667 | 64,136 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid Voss Capital, LP | −4,324,576 | 4,388,362 | |
| Small Prosight Management, LP | −31,000 | 411,600 | |
| Large HRT FINANCIAL LP | −17,751 | 15,486 | |
| Mega UBS Group AG | −8,492 | 1,024 | |
| Small GAGNON SECURITIES LLC | −700 | 239,520 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 998,521 | $1,298,077 | |
| Small Palogic Value Management, L.P. | 180,000 | $234,000 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 154,512 | $200,865 | |
| Mid XTX Topco Ltd | 32,924 | $42,801 | |
| Mid EXENCIAL WEALTH ADVISORS, LLC | 30,528 | $39,686 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 1,165,807 | $1,352,334 | |
| Mega CITADEL ADVISORS LLC | 120,083 | $139,296 | |
| Mega JANE STREET GROUP, LLC | 61,960 | $71,873 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 58,995 | $68,434 | |
| Mega TWO SIGMA INVESTMENTS, LP | 41,709 | $48,382 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid Voss Capital, LP | $5,704,870 | 38.51% | 4,388,362 | Shares | Sole | 2026-05-15 | ||||
| Micro BIOS Capital Management, LP | $2,577,087 | 17.39% | 1,982,375 | Shares | Other | 2026-05-13 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $1,298,077 | 8.76% | 998,521 | Shares | Defined | 2026-05-15 | ||||
| Small UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO Endowment | $665,093 | 4.49% | 511,610 | Shares | Sole | 2026-05-07 | ||||
| Small Cable Car Capital, LP | $546,000 | 3.69% | 420,000 | Shares | Sole | 2026-05-15 | ||||
| Small Prosight Management, LP | $535,080 | 3.61% | 411,600 | Shares | Sole | 2026-05-15 | ||||
| Mid Sigma Planning Corp | $453,280 | 3.06% | 348,677 | Shares | Sole | 2026-05-04 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $448,096 | 3.02% | 344,690 | Shares | Defined | 2026-05-15 | ||||
| Small Texas Capital Bank Wealth Management Services Inc Bank | $355,712 | 2.40% | 273,625 | Shares | Other | 2026-05-11 | ||||
| Small GAGNON SECURITIES LLC Broker-Dealer | $311,376 | 2.10% | 239,520 | Shares | Sole | 2026-04-22 | ||||
| Mid Senvest Management, LLC | $300,163 | 2.03% | 230,895 | Shares | Defined | 2026-05-14 | ||||
| Small Palogic Value Management, L.P. | $234,000 | 1.58% | 180,000 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $200,865 | 1.36% | 154,512 | Shares | Defined | 2026-05-08 | ||||
| Small Rock Creek Group LLC | $162,500 | 1.10% | 125,000 | Shares | Sole | 2026-05-11 | ||||
| Small ABS Direct Equity Fund LLC | $162,500 | 1.10% | 125,000 | Shares | Other | 2026-05-15 | ||||
| Mega STATE STREET CORP | $98,675 | 0.67% | 75,904 | Shares | Defined | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $89,085 | 0.60% | 68,528 | Shares | Sole | 2026-05-13 | ||||
| Mega NORTHERN TRUST CORP Bank | $83,376 | 0.56% | 64,136 | Shares | Defined | 2026-05-14 | ||||
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $55,172 | 0.37% | 42,440 | Shares | Defined | 2026-05-07 | ||||
| Mid Chicago Partners Investment Group LLC | $53,362 | 0.36% | 41,048 | Shares | Sole | 2026-05-04 | ||||
| Large MERCER GLOBAL ADVISORS INC /ADV | $46,099 | 0.31% | 35,461 | Shares | Sole | 2026-05-15 | ||||
| Mid XTX Topco Ltd | $42,801 | 0.29% | 32,924 | Shares | Defined | 2026-05-15 | ||||
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $41,226 | 0.28% | 31,713 | Shares | Sole | 2026-05-15 | ||||
| Mid EXENCIAL WEALTH ADVISORS, LLC | $39,686 | 0.27% | 30,528 | Shares | Sole | 2026-04-28 | ||||
| Small Meridian Wealth Advisors, LLC | $37,031 | 0.25% | 28,486 | Shares | Sole | 2026-05-11 | ||||
| Mid Americana Partners, LLC | $35,492 | 0.24% | 27,302 | Shares | Sole | 2026-05-12 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $31,850 | 0.21% | 24,500 | Shares | Sole | 2026-05-14 | ||||
| Micro Gleason Group, Inc. | $29,105 | 0.20% | 22,389 | Shares | Sole | 2026-05-04 | ||||
| Small SANDERS MORRIS HARRIS LLC | $26,000 | 0.18% | 20,000 | Shares | Sole | 2026-04-09 | ||||
| Mid Ancora Advisors LLC | $26,000 | 0.18% | 20,000 | Shares | Sole | 2026-05-15 | ||||
| Small Cane Capital Partners, LLC | $23,400 | 0.16% | 18,000 | Shares | Sole | 2026-04-24 | ||||
| Large HRT FINANCIAL LP | $20,131 | 0.14% | 15,486 | Shares | Defined | 2026-05-14 | ||||
| Small Annandale Capital, LLC | $19,533 | 0.13% | 15,026 | Shares | Sole | 2026-05-15 | ||||
| Mid SteelPeak Wealth, LLC | $16,900 | 0.11% | 13,000 | Shares | Sole | 2026-05-05 | ||||
| Mega Vanguard Global Advisers, LLC | $16,606 | 0.11% | 12,774 | Shares | Defined | 2026-05-08 | ||||
| Large HighTower Advisors, LLC | $13,000 | 0.09% | 10,000 | Shares | Sole | 2026-05-05 | ||||
| Large Rockefeller Capital Management L.P. | $6,626 | 0.04% | 5,097 | Shares | Defined | 2026-05-14 | ||||
| Mid Tower Research Capital LLC (TRC) | $4,407 | 0.03% | 3,391 | Shares | Other | 2026-05-15 | ||||
| Small JFS WEALTH ADVISORS, LLC | $2,067 | 0.01% | 1,590 | Shares | Sole | 2026-04-21 | ||||
| Large US BANCORP \DE\ Bank | $1,625 | 0.01% | 1,250 | Shares | Defined | 2026-05-15 | ||||
| Mega UBS Group AG | $1,331 | 0.01% | 1,024 | Shares | Defined | 2026-05-05 | ||||
| Small NFSG Corp | $126 | 0.00% | 97 | Shares | Sole | 2026-05-05 | ||||
| Mega WELLS FARGO & COMPANY/MN | $26 | 0.00% | 20 | Shares | Defined | 2026-05-11 | ||||
| Mid Blue Trust, Inc. | $26 | 0.00% | 20 | Shares | Other | 2026-04-20 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $22 | 0.00% | 17 | Shares | Defined | 2026-05-13 | ||||
| Small Caitong International Asset Management Co., Ltd | $3 | 0.00% | 3 | Shares | Sole | 2026-05-11 | ||||
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