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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, Q4 2021

Institutional positions in Aldeyra Therapeutics, Inc. as of Dec 31, 2021. 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
115
−2 vs. Q3 2021
Shares held
36.5M
−3.23M (−8.1%) vs. Q3 2021
Total value
$146.7M
−$202.2M (−58.0%) vs. Q3 2021
New holders
21
39 more added
Sold out
23
34 more reduced

Compare with Q3 2021: 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.

Institutional holdersQ4 2021: 115 institutions
Q1 2021: 108 institutionsQ2 2021: 136 institutionsQ3 2021: 117 institutionsQ4 2021: 115 institutionsQ1 2022: 111 institutionsQ2 2022: 95 institutionsQ3 2022: 89 institutionsQ4 2022: 96 institutionsQ1 2023: 109 institutionsQ2 2023: 119 institutionsQ3 2023: 120 institutionsQ4 2023: 105 institutionsQ1 2024: 101 institutionsQ2 2024: 103 institutionsQ3 2024: 112 institutionsQ4 2024: 119 institutionsQ1 2025: 126 institutionsQ2 2025: 122 institutionsQ3 2025: 131 institutionsQ4 2025: 136 institutionsQ1 2026: 128 institutionsQ2 2026: 107 institutions
Value heldQ4 2021: $146.7M
Q1 2021: $376.7MQ2 2021: $512.8MQ3 2021: $348.9MQ4 2021: $146.7MQ1 2022: $171.8MQ2 2022: $147.5MQ3 2022: $197.4MQ4 2022: $237.9MQ1 2023: $353.4MQ2 2023: $327.5MQ3 2023: $252.3MQ4 2023: $123.3MQ1 2024: $115.8MQ2 2024: $116.9MQ3 2024: $196.4MQ4 2024: $185.6MQ1 2025: $215.5MQ2 2025: $130.8MQ3 2025: $204.2MQ4 2025: $201.8MQ1 2026: $63.3MQ2 2026: $77.7M
Institutions holding ALDX and their total value by quarter
QuarterHoldersValue
Q2 2026107$77.7M
Q1 2026128$63.3M
Q4 2025136$201.8M
Q3 2025131$204.2M
Q2 2025122$130.8M
Q1 2025126$215.5M
Q4 2024119$185.6M
Q3 2024112$196.4M
Q2 2024103$116.9M
Q1 2024101$115.8M
Q4 2023105$123.3M
Q3 2023120$252.3M
Q2 2023119$327.5M
Q1 2023109$353.4M
Q4 202296$237.9M
Q3 202289$197.4M
Q2 202295$147.5M
Q1 2022111$171.8M
Q4 2021115$146.7M
Q3 2021117$348.9M
Q2 2021136$512.8M
Q1 2021108$376.7M

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Aldeyra Therapeutics, Inc.; share changes are against Q3 2021.

Institutions holding ALDX in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Perceptive Advisors LLC9,903,879$39.6M0.61%00.0%Unchanged
BlackRock Inc.3,228,811$12.9M0.00%−35,131−1.1%Reduced
State Street Corp3,082,352$12.3M0.00%−345,027−10.1%Reduced
Vanguard Group Inc2,813,924$11.3M0.00%+86,528+3.2%Added
Millennium Management LLC1,658,935$6.64M0.01%+1,255,992+311.7%Added
Eagle Asset Management Inc1,392,936$5.66M0.02%+46,468+3.5%Added
Verition Fund Management LLC1,366,701$5.47M0.07%+718,494+110.8%Added
Prosight Management, LP1,155,300$4.62M3.08%+420,300+57.2%Added
Geode Capital Management, LLC852,760$3.41M0.00%−49,157−5.5%Reduced
Woodline Partners LP776,234$3.10M0.05%−1,326,733−63.1%Reduced
Knoll Capital Management, LLC759,405$3.04M1.67%+190,000+33.4%Added
Two Sigma Advisers, LP689,200$2.76M0.01%−99,200−12.6%Reduced
Two Sigma Investments, LP677,072$2.71M0.01%−119,153−15.0%Reduced
Acuta Capital Partners, LLC500,000$2.00M0.84%+500,000New
Northern Trust Corp454,115$1.82M0.00%−23,943−5.0%Reduced
Johnson & Johnson394,834$1.58M0.18%00.0%Unchanged
Nuveen Asset Management, LLC236,697$1.55M0.00%−12,238−4.9%Reduced
Walleye Capital LLC355,861$1.42M0.05%+355,861New
Bank of America Corp334,889$1.34M0.00%+241,835+259.9%Added
Citadel Advisors LLC288,617$1.15M0.00%+240,484+499.6%Added
Deutsche Bank AG260,976$1.04M0.00%+1,552+0.6%Added
Dimensional Fund Advisors LP259,618$1.04M0.00%−11,766−4.3%Reduced
DLD Asset Management, LP250,000$1.00M0.08%+250,000New
Wells Fargo & Company236,640$947.0K0.00%−22,821−8.8%Reduced
Rafferty Asset Management, LLC212,975$852.0K0.00%+68,152+47.1%Added
Stonepine Capital Management, LLC200,000$800.0K0.37%+200,000New
Bank of New York Mellon Corp187,067$749.0K0.00%+3,258+1.8%Added
UBS Group AG183,800$735.0K0.00%+46,617+34.0%Added
Morgan Stanley173,204$693.0K0.00%+118,084+214.2%Added
Citigroup Inc173,062$692.0K0.00%+77,916+81.9%Added
DuPont Capital Management Corp162,134$649.0K0.02%+98,348+154.2%Added
Palo Alto Investors LP160,800$643.0K0.04%00.0%Unchanged
Jane Street Group, LLC147,256$589.0K0.00%+93,774+175.3%Added
Candriam Luxembourg S.C.A.140,000$560.0K0.00%00.0%Unchanged
Caption Management, LLC138,600$555.0K0.03%−38,679−21.8%Reduced
Susquehanna International Group, LLP131,488$526.0K0.00%−39,626−23.2%Reduced
Charles Schwab Investment Management Inc128,385$514.0K0.00%+3,699+3.0%Added
Weiss Multi-Strategy Advisers LLC127,447$510.0K0.01%−19,992−13.6%Reduced
Gsa Capital Partners LLP126,114$504.0K0.06%+22,838+22.1%Added
ClariVest Asset Management LLC123,200$493.0K0.02%+56,100+83.6%Added
Ergoteles LLC114,795$459.0K0.02%+114,795New
Goldman Sachs Group Inc102,665$410.0K0.00%−19,390−15.9%Reduced
Squarepoint Ops LLC101,479$406.0K0.00%+56,352+124.9%Added
Affinity Asset Advisors, LLC100,759$403.0K0.17%−97,000−49.0%Reduced
Simplex Trading, LLC93,739$374.0K0.01%+72,929+350.5%Added
New York Life Investments Alternatives86,730$347.0K0.23%+30,077+53.1%Added
Cubist Systematic Strategies, LLC84,342$337.0K0.00%+41,090+95.0%Added
Group One Trading, L.P.78,868$315.0K0.01%−2,453−3.0%Reduced
Engineers Gate Manager LP73,594$294.0K0.01%+73,594New
Alps Advisors Inc67,223$269.0K0.00%−3,692−5.2%Reduced
State of Wisconsin Investment Board62,700$251.0K0.00%00.0%Unchanged
Barclays PLC58,909$236.0K0.00%+15,028+34.2%Added
Gyon Technologies Capital Management, LP51,161$205.0K0.04%+51,161New
International Assets Investment Management, LLC50,325$201.0K0.04%+8,125+19.3%Added
Mesirow Financial Investment Management, Inc.48,711$195.0K0.56%00.0%Unchanged
Rhumbline Advisers42,600$170.0K0.00%−853−2.0%Reduced
Belvedere Trading LLC51,216$166.0K0.04%+36,975+259.6%Added
Price T Rowe Associates Inc37,064$148.0K0.00%+25,900+232.0%Added
D. E. Shaw & Co., Inc.36,228$145.0K0.00%+21,947+153.7%Added
Stifel Financial Corp34,577$138.0K0.00%−34,211−49.7%Reduced
First Manhattan Co34,745$138.0K0.00%00.0%Unchanged
Virtu Financial LLC32,401$130.0K0.01%+32,401New
New York State Common Retirement Fund32,203$129.0K0.00%−129−0.4%Reduced
Ameriprise Financial Inc30,800$123.0K0.00%−15,100−32.9%Reduced
Parametric Portfolio Associates LLC28,357$113.0K0.00%−2,827−9.1%Reduced
Manufacturers Life Insurance Company, The27,645$111.0K0.00%+584+2.2%Added
Assenagon Asset Management S.A.26,392$106.0K0.00%−42,827−61.9%Reduced
California State Teachers Retirement System26,203$105.0K0.00%00.0%Unchanged
American International Group, Inc.25,792$103.0K0.00%−771−2.9%Reduced
ExodusPoint Capital Management, LP25,031$100.0K0.00%−5,463−17.9%Reduced
Virtus ETF Advisers LLC24,298$97.0K0.04%+7,002+40.5%Added
Alpine Global Management, LLC22,607$90.0K0.01%+22,607New
Raymond James & Associates21,697$87.0K0.00%−24,150−52.7%Reduced
Cetera Advisor Networks LLC21,426$86.0K0.00%+21,426New
Hikari Power Ltd20,020$80.0K0.01%00.0%Unchanged
Voya Investment Management LLC18,652$75.0K0.00%−445−2.3%Reduced
JPMorgan Chase & Co18,823$75.0K0.00%+832+4.6%Added
HRT Financial LP18,933$75.0K0.00%+18,933New
MetLife Investment Management18,715$74.9K0.00%+9,298+98.7%Added
Invesco Ltd.16,753$67.0K0.00%−6,605−28.3%Reduced
Kestra Advisory Services, LLC16,809$67.0K0.00%+4,212+33.4%Added
Alliancebernstein L.P.15,200$61.0K0.00%00.0%Unchanged
CSS LLC15,000$60.0K0.00%+15,000New
SlateStone Wealth, LLC11,964$48.0K0.01%00.0%Unchanged
Tower Research Capital LLC (TRC)11,843$47.0K0.00%−8,168−40.8%Reduced
State Board of Administration of Florida Retirement System11,450$46.0K0.00%+816+7.7%Added
Federation des caisses Desjardins du Quebec11,180$44.7K0.00%00.0%Unchanged
ProShare Advisors LLC10,602$43.0K0.00%+10,602New
Royal Bank of Canada10,557$42.0K0.00%+5,997+131.5%Added
CIBC World Markets Inc.10,000$40.0K0.00%00.0%Unchanged
Graham Capital Management, L.P.10,047$40.0K0.00%+10,047New
BNP Paribas Arbitrage, SA9,936$39.7K0.00%+1,272+14.7%Added
Point72 Hong Kong Ltd7,702$31.0K0.00%+7,702New
Metropolitan Life Insurance Co5,361$21.4K0.00%−3,732−41.0%Reduced
Legal & General Group Plc4,982$20.0K0.00%−150−2.9%Reduced
Princeton Global Asset Management LLC5,000$20.0K0.01%00.0%Unchanged
Cutler Group LP4,458$17.0K0.00%−7,223−61.8%Reduced
Ameritas Investment Partners, Inc.3,805$15.0K0.00%00.0%Unchanged
Bank Julius Baer & Co. Ltd, Zurich3,500$14.0K0.00%00.0%Unchanged
HighMark Wealth Management LLC3,115$12.0K0.01%−1,442−31.6%Reduced