Aldeyra Therapeutics, Inc.
ALDX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001341235
No open-market purchases or sales by Aldeyra Therapeutics, Inc. insiders were filed in the last 90 days; 107 institutions reported holding it in 13F filings for Q2 2026, worth $77.7M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Aldeyra 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
- 128
- −5 vs. Q4 2025
- Shares held
- 37.3M
- +2.09M (+5.9%) vs. Q4 2025
- Total value
- $63.3M
- −$119.2M (−65.3%) vs. Q4 2025
- New holders
- 24
- 50 more added
- Sold out
- 29
- 37 more reduced
3 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 ALDX 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 | 107 | $77.7M |
| Q1 2026 | 128 | $63.3M |
| Q4 2025 | 136 | $201.8M |
| Q3 2025 | 131 | $204.2M |
| Q2 2025 | 122 | $130.8M |
| Q1 2025 | 126 | $215.5M |
| Q4 2024 | 119 | $185.6M |
| Q3 2024 | 112 | $196.4M |
| Q2 2024 | 103 | $116.9M |
| Q1 2024 | 101 | $115.8M |
| Q4 2023 | 105 | $123.3M |
| Q3 2023 | 120 | $252.3M |
| Q2 2023 | 119 | $327.5M |
| Q1 2023 | 109 | $353.4M |
| Q4 2022 | 96 | $237.9M |
| Q3 2022 | 89 | $197.4M |
| Q2 2022 | 95 | $147.5M |
| Q1 2022 | 111 | $171.8M |
| Q4 2021 | 115 | $146.7M |
| Q3 2021 | 117 | $348.9M |
| Q2 2021 | 136 | $512.8M |
| Q1 2021 | 108 | $376.7M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Aldeyra Therapeutics, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Knoll Capital Management, LLC | 5,475,516 | $9.25M | 5.14% | 00.0% | Unchanged |
| BlackRock, Inc. | 3,763,887 | $6.36M | 0.00% | −86,216−2.2% | Reduced |
| AQR Capital Management LLC | 2,829,875 | $4.78M | 0.00% | +1,602,953+130.6% | Added |
| Vanguard Capital Management LLC | 2,363,742 | $3.99M | 0.00% | +2,363,742 | New |
| Kingdon Capital Management, L.L.C. | 2,152,315 | $3.64M | 0.61% | +302,315+16.3% | Added |
| 683 Capital Management, LLC | 1,500,000 | $2.53M | 0.24% | −30,000−2.0% | Reduced |
| D. E. Shaw & Co., Inc. | 1,403,990 | $2.37M | 0.00% | −197,334−12.3% | Reduced |
| Geode Capital Management, LLC | 1,251,652 | $2.12M | 0.00% | +81,115+6.9% | Added |
| State Street Corp | 1,124,710 | $1.90M | 0.00% | +26,110+2.4% | Added |
| Millennium Management LLC | 995,243 | $1.68M | 0.00% | +951,184+2,158.9% | Added |
| Jane Street Group, LLC | 968,891 | $1.64M | 0.00% | +665,039+218.9% | Added |
| Ardsley Advisory Partners LP | 950,000 | $1.61M | 0.24% | −500,000−34.5% | Reduced |
| Renaissance Technologies LLC | 863,187 | $1.46M | 0.00% | +513,187+146.6% | Added |
| Acadian Asset Management LLC | 858,288 | $1.45M | 0.00% | −121,233−12.4% | Reduced |
| Vanguard Portfolio Management LLC | 807,778 | $1.37M | 0.00% | +807,778 | New |
| Jacobs Levy Equity Management, Inc | 796,816 | $1.35M | 0.01% | −171,935−17.7% | Reduced |
| Propel Bio Management, LLC | 730,606 | $1.23M | 0.78% | +730,606 | New |
| Dimensional Fund Advisors LP | 624,170 | $1.05M | 0.00% | +11,912+1.9% | Added |
| Goldman Sachs Group Inc | 543,146 | $917.9K | 0.00% | +237,440+77.7% | Added |
| UBS Group AG | 537,569 | $908.5K | 0.00% | +441,892+461.9% | Added |
| Morgan Stanley | 518,642 | $876.5K | 0.00% | −138,390−21.1% | Reduced |
| Northern Trust Corp | 374,812 | $633.4K | 0.00% | −4,593−1.2% | Reduced |
| Vanguard Fiduciary Trust Co | 338,621 | $572.3K | 0.00% | +338,621 | New |
| HRT Financial LP | 286,444 | $484.0K | 0.00% | +286,444 | New |
| Susquehanna International Group, LLP | 278,442 | $470.6K | 0.00% | +215,535+342.6% | Added |
| Woodstock Corp | 266,756 | $450.8K | 0.04% | 00.0% | Unchanged |
| Ieq Capital, LLC | 266,518 | $450.4K | 0.00% | +122,319+84.8% | Added |
| Citadel Advisors LLC | 266,340 | $450.1K | 0.00% | +266,340 | New |
| Gsa Capital Partners LLP | 247,194 | $418.0K | 0.03% | +150,277+155.1% | Added |
| Two Sigma Investments, LP | 223,537 | $377.8K | 0.00% | −63,827−22.2% | Reduced |
| Bank of America Corp | 215,332 | $363.9K | 0.00% | −194,696−47.5% | Reduced |
| Alliancebernstein L.P. | 68,140 | $353.0K | 0.00% | −7,410−9.8% | Reduced |
| Wells Fargo & Company | 189,729 | $320.6K | 0.00% | −176,440−48.2% | Reduced |
| Invesco Ltd. | 169,698 | $286.8K | 0.00% | +6,611+4.1% | Added |
| ExodusPoint Capital Management, LP | 167,604 | $283.3K | 0.00% | +75,214+81.4% | Added |
| Caption Management, LLC | 165,000 | $278.9K | 0.01% | +130,000+371.4% | Added |
| Palo Alto Investors LP | 155,709 | $263.1K | 0.04% | −69,756−30.9% | Reduced |
| Wellington Management Group LLP | 148,962 | $251.7K | 0.00% | −29,889−16.7% | Reduced |
| Charles Schwab Investment Management Inc | 139,029 | $235.0K | 0.00% | −13,758−9.0% | Reduced |
| Bank of New York Mellon Corp | 136,746 | $231.1K | 0.00% | +20,980+18.1% | Added |
| Marshall Wace, LLP | 129,693 | $219.2K | 0.00% | +129,693 | New |
| Kennedy Capital Management, Inc. | 95,862 | $162.0K | 0.00% | −1,159,976−92.4% | Reduced |
| Mariner, LLC | 91,870 | $155.3K | 0.00% | +68,994+301.6% | Added |
| CWM, LLC | 91,623 | $154.8K | 0.00% | +48,318+111.6% | Added |
| Fox Run Management, L.L.C. | 90,964 | $152.8K | 0.03% | +69,981+333.5% | Added |
| Qube Research & Technologies Ltd | 87,078 | $147.2K | 0.00% | +2,150+2.5% | Added |
| Russell Investments Group, Ltd. | 84,300 | $142.5K | 0.00% | −29,826−26.1% | Reduced |
| Cerity Partners LLC | 81,223 | $137.3K | 0.00% | +30,174+59.1% | Added |
| XTX Topco Ltd | 75,166 | $127.0K | 0.00% | +32,939+78.0% | Added |
| Price T Rowe Associates Inc | 73,772 | $125.0K | 0.00% | +9,510+14.8% | Added |
| Rhumbline Advisers | 69,205 | $116.9K | 0.00% | −1,208−1.7% | Reduced |
| STRS Ohio | 68,200 | $115.3K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Advisory Services, LLC | 61,087 | $101.4K | 0.00% | +28,404+86.9% | Added |
| Flow Traders U.S. LLC | 55,521 | $94.0K | 0.00% | +55,521 | New |
| Captrust Financial Advisors | 52,947 | $89.5K | 0.00% | +952+1.8% | Added |
| Graham Capital Management, L.P. | 51,592 | $87.2K | 0.00% | −24,773−32.4% | Reduced |
| Deutsche Bank AG | 50,271 | $85.0K | 0.00% | −267,064−84.2% | Reduced |
| Canada Pension Plan Investment Board | 47,400 | $80.1K | 0.00% | +11,900+33.5% | Added |
| Mercer Global Advisors Inc | 37,742 | $63.8K | 0.00% | +27,171+257.0% | Added |
| International Assets Investment Management, LLC | 37,360 | $62.8K | 0.00% | −10,115−21.3% | Reduced |
| AlphaCentric Advisors LLC | 37,120 | $62.7K | 0.06% | +2,208+6.3% | Added |
| Essential Partners LLC | 35,893 | $60.7K | 0.02% | +705+2.0% | Added |
| First Manhattan Co | 34,745 | $58.7K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 29,815 | $50.4K | 0.00% | −233,592−88.7% | Reduced |
| Creative Planning | 28,871 | $48.8K | 0.00% | −5,650−16.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 25,815 | $43.6K | 0.00% | +612+2.4% | Added |
| Providence Wealth Advisors, LLC | 25,000 | $43.3K | 0.03% | 00.0% | Unchanged |
| LPL Financial LLC | 23,416 | $39.6K | 0.00% | −11,500−32.9% | Reduced |
| JPMorgan Chase & Co | 23,158 | $38.9K | 0.00% | +1,169+5.3% | Added |
| Brighton Jones LLC | 22,199 | $37.5K | 0.00% | +22,199 | New |
| Colony Group, LLC | 22,098 | $37.3K | 0.00% | +22,098 | New |
| Nuveen, LLC | 21,266 | $35.9K | 0.00% | −86,954−80.3% | Reduced |
| Hikari Power Ltd | 20,020 | $34.0K | 0.00% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 19,679 | $33.3K | 0.00% | +19,679 | New |
| Chicago Partners Investment Group LLC | 19,523 | $33.2K | 0.00% | +19,523 | New |
| Police & Firemen's Retirement System of New Jersey | 18,181 | $30.7K | 0.00% | +7,460+69.6% | Added |
| Federation des caisses Desjardins du Quebec | 18,106 | $30.6K | 0.00% | +5,919+48.6% | Added |
| Vanguard Global Advisers, LLC | 17,687 | $29.9K | 0.00% | +17,687 | New |
| Letko, Brosseau & Associates Inc | 17,300 | $29.2K | 0.00% | 00.0% | Unchanged |
| Buckingham Strategic Partners | 17,026 | $28.8K | 0.00% | +6,491+61.6% | Added |
| FMR LLC | 16,503 | $27.9K | 0.00% | +9,538+136.9% | Added |
| Manufacturers Life Insurance Company, The | 16,155 | $27.3K | 0.00% | −866−5.1% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 15,805 | $26.7K | 0.00% | +1,000+6.8% | Added |
| Krilogy Financial LLC | 14,459 | $26.0K | 0.00% | +14,459 | New |
| Abel Hall, LLC | 15,142 | $25.6K | 0.01% | +15,142 | New |
| Capital Advisors Wealth Management, LLC | 15,000 | $25.4K | 0.00% | −800−5.1% | Reduced |
| Integrated Wealth Concepts LLC | 14,958 | $25.3K | 0.00% | +14,958 | New |
| Intech Investment Management LLC | 14,754 | $24.9K | 0.00% | −18,574−55.7% | Reduced |
| CIBC Bancorp USA Inc. | 13,237 | $22.4K | 0.00% | +13,237 | New |
| King Wealth | 11,900 | $20.0K | 0.00% | +1,100+10.2% | Added |
| Caerus Investment Advisors, LLC | 11,455 | $19.4K | 0.01% | +11,455 | New |
| Tower Research Capital LLC (TRC) | 11,325 | $19.1K | 0.00% | +6,320+126.3% | Added |
| Inspirion Wealth Advisors, LLC | 10,000 | $16.9K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 9,906 | $16.7K | 0.00% | −74,565−88.3% | Reduced |
| New York State Common Retirement Fund | 9,598 | $16.2K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 4,940 | $8.35K | 0.00% | −705−12.5% | Reduced |
| UBS Asset Management Americas Inc | 4,825 | $8.15K | 0.00% | +3,933+440.9% | Added |
| Nisa Investment Advisors, LLC | 4,600 | $7.77K | 0.00% | +4,503+4,642.3% | Added |
| Optiver Holding B.V. | 4,566 | $7.72K | 0.00% | +3,586+365.9% | Added |
| Farther Finance Advisors, LLC | 4,450 | $7.48K | 0.00% | +495+12.5% | Added |