ALDX — ALDEYRA THERAPEUTICS INC
As of Q2 2026, 24 SEC-registered investment managers reported holding ALDX (ALDEYRA THERAPEUTICS INC) in their latest 13F filings, with a combined reported value of $29.52M across 13.90M shares. That is -7.7% by share count (-1.16M shares) versus the previous quarter, while reported value moved +16.5%. Ownership is concentrated: the five largest holders account for 67.4% of reported value and the top ten for 88.2%.
Compared with the prior quarter, 3 opened new positions, 10 added to existing stakes, 11 trimmed, 6 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
ALDX is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Vanguard Group history | Q4 2025 | 3.70M | $19.16M | 0.00% | Add |
| AQR Capital Management history | Q2 2026 | 3.75M | $7.99M | 0.00% | Add |
| D. E. Shaw & Co history | Q2 2026 | 1.94M | $4.13M | 0.00% | Add |
| Marshall Wace history | Q2 2026 | 1.51M | $3.21M | 0.00% | Add |
| BlackRock Inc history | Q2 2026 | 1.26M | $2.68M | 0.00% | Reduce |
| Renaissance Technologies history | Q2 2026 | 882.00K | $1.88M | 0.00% | Add |
| Goldman Sachs Group history | Q2 2026 | 725.44K | $1.55M | 0.00% | Add |
| Morgan Stanley history | Q2 2026 | 608.32K | $1.30M | 0.00% | Add |
| Geode Capital Management history | Q2 2026 | 596.03K | $1.27M | 0.00% | Reduce |
| Citadel Advisors history | Q2 2026 | 542.74K | $1.16M | 0.00% | Add |
| Arrowstreet Capital history | Q2 2026 | 421.18K | $897.11K | 0.00% | New |
| Millennium Management history | Q2 2026 | 360.35K | $767.55K | 0.00% | Reduce |
| UBS Group AG history | Q2 2026 | 301.94K | $643.13K | 0.00% | Reduce |
| Wells Fargo & Co history | Q2 2026 | 162.34K | $345.78K | 0.00% | Reduce |
| Invesco Ltd history | Q2 2026 | 159.54K | $339.82K | 0.00% | Reduce |
| Point72 Asset Management history | Q2 2026 | 154.41K | $328.89K | 0.00% | New |
| Two Sigma Investments history | Q2 2026 | 127.85K | $272.32K | 0.00% | Reduce |
| Wellington Management Group history | Q1 2026 | 148.96K | $251.75K | 0.00% | Reduce |
| Charles Schwab Investment Management history | Q1 2026 | 139.03K | $234.96K | 0.00% | Reduce |
| Northern Trust Corp history | Q2 2026 | 108.89K | $231.93K | 0.00% | Reduce |
New Positions (Q2 2026)
- Arrowstreet Capital 421.18K sh · $897.11K
- Point72 Asset Management 154.41K sh · $328.89K
- JPMorgan Chase & Co 109.58K sh · $224.63K
Fully Exited (vs previous quarter)
- Wellington Management Group sold 148.96K sh · $251.75K
- Charles Schwab Investment Management sold 139.03K sh · $234.96K
- BNY Mellon sold 136.75K sh · $231.10K
- Deutsche Bank AG sold 50.27K sh · $84.96K
- Manulife Financial sold 16.16K sh · $27.30K
- Legal & General Investment Management America sold 4.94K sh · $8.35K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AQR Capital Management | — | — | — | 40.95K | — | — | — | 26.16K | 20.91K | — | 105.05K | 34.78K | — | 70.56K | 392.56K | 1.47M | 1.51M | 1.23M | 2.83M | 3.75M |
| D. E. Shaw & Co | 14.28K | 36.23K | 239.16K | 273.34K | 448.11K | 347.87K | 124.92K | 75.98K | 45.97K | 260.06K | 547.64K | 321.94K | 334.78K | 188.58K | 151.64K | 487.67K | 1.38M | 1.60M | 1.40M | 1.94M |
| Marshall Wace | — | — | — | 77.68K | 200.16K | 322.58K | 77.11K | 183.34K | — | — | — | — | — | — | — | — | 160.21K | — | 129.69K | 1.51M |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 3.73M | 3.79M | 3.74M | 3.85M | 3.80M | 3.85M | 3.76M | 1.26M |
| Renaissance Technologies | — | — | — | 514.10K | 378.30K | 213.50K | 247.40K | 305.36K | 221.80K | 300.00K | 727.69K | 503.30K | 107.40K | 167.10K | 116.60K | 112.80K | 197.30K | 350.00K | 863.19K | 882.00K |
| Goldman Sachs Group | 122.06K | 102.67K | 1.39M | 1.18M | 188.31K | 23.75K | 287.24K | 197.44K | 168.68K | 147.48K | 91.72K | 104.93K | 144.83K | 240.33K | 124.36K | 139.61K | 182.94K | 305.71K | 543.15K | 725.44K |
| Morgan Stanley | 55.12K | 173.20K | 353.15K | 364.96K | 302.64K | 315.25K | 1.18M | 321.03K | 249.12K | 420.07K | 349.55K | 311.40K | 520.65K | 579.72K | 555.06K | 775.04K | 1.08M | 657.03K | 518.64K | 608.32K |
| Geode Capital Management | 901.92K | 852.76K | 912.87K | 486.77K | 469.43K | 466.58K | 488.35K | 953.25K | 975.57K | 1.02M | 1.03M | 1.14M | 1.11M | 1.12M | 1.14M | 1.15M | 1.18M | 1.17M | 1.25M | 596.03K |
| Citadel Advisors | 139.23K | 468.32K | 2.54M | 2.34M | 1.75M | 878.95K | 458.84K | 326.65K | 414.40K | 156.03K | 167.95K | 130.16K | 215.25K | 234.74K | 99.10K | 126.25K | 345.45K | 352.90K | 416.84K | 542.74K |
| Arrowstreet Capital | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 421.18K |
| Millennium Management | 402.94K | 1.81M | 504.46K | 1.24M | 646.39K | 850.09K | 1.12M | 495.57K | 582.18K | 440.39K | 388.70K | 43.83K | — | 161.93K | 176.46K | 19.61K | 221.16K | 44.06K | 995.24K | 360.35K |
| UBS Group AG | 137.18K | 203.80K | 960.39K | 760.50K | 25.80K | 1.80K | 6.41K | 89.23K | 74.59K | 53.08K | 48.32K | 48.03K | 26.53K | 94.28K | 94.47K | 107.25K | 200.74K | 95.68K | 537.57K | 301.94K |
| Wells Fargo & Co | 259.46K | 236.64K | 330.54K | 331.36K | 310.41K | 317.85K | 271.84K | 339.88K | 343.27K | 345.11K | 387.30K | 395.30K | 386.31K | 393.65K | 392.53K | 364.17K | 361.47K | 369.17K | 189.73K | 162.34K |
| Invesco Ltd | 23.36K | 16.75K | 16.38K | — | 227.84K | 247.05K | 282.71K | 515.34K | 48.08K | 31.77K | 31.83K | 29.86K | 656.51K | 29.91K | 501.14K | 122.57K | 133.71K | 163.09K | 169.70K | 159.54K |
| Point72 Asset Management | — | — | — | — | — | — | 8.51K | — | — | — | — | — | — | — | — | — | — | 94.09K | — | 154.41K |
| Two Sigma Investments | 796.23K | 677.07K | 342.89K | 606.07K | 581.44K | 450.69K | 220.50K | 131.30K | 267.32K | 201.54K | 238.96K | 193.12K | 146.76K | 131.41K | 55.33K | 55.74K | 273.05K | 287.36K | 223.54K | 127.85K |
| Northern Trust Corp | 478.06K | 454.12K | 439.45K | 90.15K | 85.82K | 85.81K | 85.49K | 413.68K | 412.44K | 393.01K | 389.19K | 385.51K | 388.62K | 405.52K | 389.58K | 403.95K | 407.96K | 379.40K | 374.81K | 108.89K |
| JPMorgan Chase & Co | 17.99K | 18.82K | 22.84K | 73 | 93 | 73 | 73 | 36.43K | 31.93K | 31.68K | 19.44K | 21.93K | 23.82K | 25.39K | 27.54K | 25.70K | 27.12K | 21.99K | — | 109.58K |
| CPP Investments | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 35.50K | 47.40K | 94.30K |
| Bank of America Corp | 93.05K | 334.89K | 91.29K | 132.61K | 106.51K | 87.49K | 159.46K | 296.68K | 297.43K | 373.92K | 398.95K | 378.49K | 375.39K | 306.25K | 408.54K | 56.49K | 390.08K | 410.03K | 215.33K | 33.92K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details