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 $78.2M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Aldeyra Therapeutics, Inc. as of Jun 30, 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
- 107
- −19 vs. Q1 2026
- Shares held
- 36.7M
- −505.9K (−1.4%) vs. Q1 2026
- Total value
- $78.2M
- +$15.0M (+23.8%) vs. Q1 2026
- New holders
- 19
- 31 more added
- Sold out
- 38
- 43 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $78.2M |
| Q1 2026 | 128 | $63.3M |
| Q4 2025 | 136 | $201.8M |
| Q3 2025 | 131 | $204.3M |
| Q2 2025 | 122 | $131.2M |
| Q1 2025 | 126 | $225.6M |
| Q4 2024 | 119 | $186.0M |
| Q3 2024 | 112 | $249.8M |
| Q2 2024 | 103 | $117.0M |
| Q1 2024 | 101 | $118.1M |
| Q4 2023 | 105 | $125.2M |
| Q3 2023 | 120 | $252.3M |
| Q2 2023 | 119 | $327.5M |
| Q1 2023 | 109 | $361.2M |
| Q4 2022 | 96 | $237.9M |
| Q3 2022 | 89 | $210.2M |
| Q2 2022 | 95 | $147.5M |
| Q1 2022 | 111 | $171.9M |
| Q4 2021 | 115 | $187.1M |
| Q3 2021 | 117 | $348.9M |
| Q2 2021 | 136 | $625.0M |
| Q1 2021 | 108 | $376.7M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Aldeyra Therapeutics, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Knoll Capital Management, LLC | 5,475,516 | $11.7M | 5.44% | 00.0% | Unchanged |
| AQR Capital Management LLC | 3,751,558 | $7.99M | 0.00% | +921,683+32.6% | Added |
| Kingdon Capital Management, L.L.C. | 2,652,315 | $5.65M | 0.76% | +500,000+23.2% | Added |
| Vanguard Capital Management LLC | 2,361,796 | $5.03M | 0.00% | −1,946−0.1% | Reduced |
| D. E. Shaw & Co., Inc. | 1,940,338 | $4.13M | 0.00% | +536,348+38.2% | Added |
| Marshall Wace, LLP | 1,506,974 | $3.21M | 0.00% | +1,377,281+1,062.0% | Added |
| 683 Capital Management, LLC | 1,450,000 | $3.09M | 0.28% | −50,000−3.3% | Reduced |
| Jane Street Group, LLC | 1,375,115 | $2.93M | 0.00% | +406,224+41.9% | Added |
| BlackRock, Inc. | 1,257,243 | $2.68M | 0.00% | −2,506,644−66.6% | Reduced |
| Qube Research & Technologies Ltd | 1,128,803 | $2.40M | 0.00% | +1,041,725+1,196.3% | Added |
| Acadian Asset Management LLC | 1,063,793 | $2.26M | 0.00% | +205,505+23.9% | Added |
| Ardsley Advisory Partners LP | 975,000 | $2.08M | 0.23% | +25,000+2.6% | Added |
| Renaissance Technologies LLC | 882,000 | $1.88M | 0.00% | +18,813+2.2% | Added |
| Vanguard Portfolio Management LLC | 794,863 | $1.69M | 0.00% | −12,915−1.6% | Reduced |
| Goldman Sachs Group Inc | 725,444 | $1.55M | 0.00% | +182,298+33.6% | Added |
| Jacobs Levy Equity Management, Inc | 646,840 | $1.38M | 0.00% | −149,976−18.8% | Reduced |
| Morgan Stanley | 608,321 | $1.30M | 0.00% | +89,679+17.3% | Added |
| Geode Capital Management, LLC | 596,029 | $1.27M | 0.00% | −655,623−52.4% | Reduced |
| Dimensional Fund Advisors LP | 529,083 | $1.13M | 0.00% | −95,087−15.2% | Reduced |
| Gsa Capital Partners LLP | 472,564 | $1.01M | 0.06% | +225,370+91.2% | Added |
| Arrowstreet Capital, Limited Partnership | 421,178 | $897.1K | 0.00% | +421,178 | New |
| Cantor Fitzgerald, L. P. | 400,000 | $852.0K | 0.01% | +400,000 | New |
| Citadel Advisors LLC | 379,144 | $807.6K | 0.00% | +112,804+42.4% | Added |
| Millennium Management LLC | 360,350 | $767.5K | 0.00% | −634,893−63.8% | Reduced |
| UBS Group AG | 301,940 | $643.1K | 0.00% | −235,629−43.8% | Reduced |
| Vanguard Fiduciary Trust Co | 298,242 | $635.3K | 0.00% | −40,379−11.9% | Reduced |
| XTX Topco Ltd | 254,777 | $542.7K | 0.01% | +179,611+239.0% | Added |
| Woodstock Corp | 242,756 | $517.1K | 0.04% | −24,000−9.0% | Reduced |
| State Street Corp | 233,774 | $497.9K | 0.00% | −890,936−79.2% | Reduced |
| Ieq Capital, LLC | 206,593 | $440.0K | 0.00% | −59,925−22.5% | Reduced |
| Caption Management, LLC | 165,000 | $351.4K | 0.01% | 00.0% | Unchanged |
| Wells Fargo & Company | 162,336 | $345.8K | 0.00% | −27,393−14.4% | Reduced |
| Invesco Ltd. | 159,540 | $339.8K | 0.00% | −10,158−6.0% | Reduced |
| BNP Paribas Arbitrage, SA | 157,248 | $334.9K | 0.00% | +127,433+427.4% | Added |
| Palo Alto Investors LP | 155,709 | $331.7K | 0.05% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 154,408 | $328.9K | 0.00% | +154,408 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 154,292 | $328.6K | 0.00% | +154,292 | New |
| Man Group plc | 152,713 | $325.3K | 0.00% | +152,713 | New |
| Jain Global LLC | 131,502 | $280.1K | 0.00% | +131,502 | New |
| Two Sigma Investments, LP | 127,849 | $272.3K | 0.00% | −95,688−42.8% | Reduced |
| Northern Trust Corp | 108,888 | $231.9K | 0.00% | −265,924−70.9% | Reduced |
| JPMorgan Chase & Co | 109,578 | $224.6K | 0.00% | +86,420+373.2% | Added |
| Kennedy Capital Management, Inc. | 97,726 | $208.2K | 0.00% | +1,864+1.9% | Added |
| Canada Pension Plan Investment Board | 94,300 | $200.9K | 0.00% | +46,900+98.9% | Added |
| Squarepoint Ops LLC | 94,048 | $200.3K | 0.00% | +94,048 | New |
| Russell Investments Group, Ltd. | 90,353 | $192.4K | 0.00% | +6,053+7.2% | Added |
| Mariner, LLC | 90,339 | $192.4K | 0.00% | −1,531−1.7% | Reduced |
| Royal Bank of Canada | 79,783 | $170.0K | 0.00% | +78,415+5,732.1% | Added |
| Cerity Partners LLC | 72,712 | $154.9K | 0.00% | −8,511−10.5% | Reduced |
| Chicago Partners Investment Group LLC | 83,984 | $130.2K | 0.00% | +64,461+330.2% | Added |
| Susquehanna International Group, LLP | 58,398 | $124.4K | 0.00% | −220,044−79.0% | Reduced |
| Captrust Financial Advisors | 51,778 | $110.3K | 0.00% | −1,169−2.2% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 47,518 | $98.4K | 0.00% | −13,569−22.2% | Reduced |
| Quadrature Capital Ltd | 46,044 | $98.1K | 0.00% | +46,044 | New |
| Graham Capital Management, L.P. | 43,556 | $92.8K | 0.00% | −8,036−15.6% | Reduced |
| International Assets Investment Management, LLC | 36,750 | $89.3K | 0.01% | −610−1.6% | Reduced |
| Creative Planning | 38,200 | $81.4K | 0.00% | +9,329+32.3% | Added |
| AlphaCentric Advisors LLC | 37,656 | $80.2K | 0.07% | +536+1.4% | Added |
| Mercer Global Advisors Inc | 36,901 | $78.6K | 0.00% | −841−2.2% | Reduced |
| Price T Rowe Associates Inc | 35,091 | $75.0K | 0.00% | −38,681−52.4% | Reduced |
| Bank of America Corp | 33,925 | $72.3K | 0.00% | −181,407−84.2% | Reduced |
| Two Sigma Securities, LLC | 32,818 | $69.9K | 0.01% | +32,818 | New |
| Simplex Trading, LLC | 28,957 | $61.7K | 0.00% | +28,957 | New |
| SRS Capital Advisors, Inc. | 28,634 | $61.0K | 0.00% | +28,158+5,915.5% | Added |
| State of Wisconsin Investment Board | 28,400 | $60.5K | 0.00% | +28,400 | New |
| Providence Wealth Advisors, LLC | 25,000 | $58.9K | 0.03% | 00.0% | Unchanged |
| Rhumbline Advisers | 26,652 | $56.8K | 0.00% | −42,553−61.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 20,920 | $44.6K | 0.00% | +20,920 | New |
| SEI Investments Co | 20,739 | $44.2K | 0.00% | +20,739 | New |
| Hikari Power Ltd | 20,020 | $43.0K | 0.01% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 18,106 | $38.6K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 17,889 | $38.1K | 0.00% | +1,386+8.4% | Added |
| Vanguard Global Advisers, LLC | 17,687 | $37.7K | 0.00% | 00.0% | Unchanged |
| Letko, Brosseau & Associates Inc | 17,300 | $36.8K | 0.00% | 00.0% | Unchanged |
| Y-Intercept (Hong Kong) Ltd | 17,084 | $36.4K | 0.00% | +17,084 | New |
| Merit Financial Group, LLC | 16,664 | $35.5K | 0.00% | −3,015−15.3% | Reduced |
| Brighton Jones LLC | 16,144 | $34.4K | 0.00% | −6,055−27.3% | Reduced |
| Virtu Financial LLC | 15,826 | $34.0K | 0.00% | +15,826 | New |
| StoneX Group Inc. | 19,296 | $33.1K | 0.00% | +19,296 | New |
| Activest Wealth Management | 15,000 | $31.9K | 0.01% | +11,000+275.0% | Added |
| Cetera Investment Advisers | 14,699 | $31.3K | 0.00% | +14,699 | New |
| Colony Group, LLC | 13,863 | $29.5K | 0.00% | −8,235−37.3% | Reduced |
| LPL Financial LLC | 13,316 | $28.4K | 0.00% | −10,100−43.1% | Reduced |
| King Wealth | 12,700 | $27.0K | 0.00% | +800+6.7% | Added |
| Inspirion Wealth Advisors, LLC | 10,000 | $24.3K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 10,863 | $23.1K | 0.00% | +10,863 | New |
| Global Retirement Partners, LLC | 10,000 | $21.3K | 0.00% | +10,000 | New |
| Barclays PLC | 5,769 | $12.3K | 0.00% | −4,137−41.8% | Reduced |
| UBS Asset Management Americas Inc | 4,825 | $10.3K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 4,497 | $9.57K | 0.00% | +47+1.1% | Added |
| EverSource Wealth Advisors, LLC | 4,027 | $8.58K | 0.00% | −189−4.5% | Reduced |
| Optiver Holding B.V. | 4,022 | $8.57K | 0.00% | −544−11.9% | Reduced |
| Essential Partners LLC | 2,070 | $4.41K | 0.00% | −33,823−94.2% | Reduced |
| Raffa Wealth Management, LLC | 1,897 | $4.04K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 1,827 | $3.89K | 0.00% | −258−12.4% | Reduced |
| The PNC Financial Services Group, Inc. | 1,575 | $3.35K | 0.00% | +1,206+326.8% | Added |
| SBI Securities Co., Ltd. | 1,423 | $3.03K | 0.00% | +1,160+441.1% | Added |
| IFP Advisors, Inc | 1,407 | $3.00K | 0.00% | −35−2.4% | Reduced |
| Rothschild Investment LLC | 355 | $756 | 0.00% | −5−1.4% | Reduced |
| Citigroup Inc | 327 | $697 | 0.00% | −2,784−89.5% | Reduced |