ALDX · Aldeyra Therapeutics, Inc. · Shareholders & Ownership
Market Cap
$39.19M
Shares
60.33M
Volume · Oct 23
821.84K
Avg daily vol (3M)
1.16M
Every disclosed holder of ALDX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns ALDX
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 36,468,175 | 60.45% |
| Insiders (Forms 3, 4, 5) | 8,021,448 | 13.30% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 15,836,798 | 26.25% |
| Registered funds (N-PORT, not summed) | 5,030,620 | 8.34% |
Shares outstanding: 60,326,421, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of ALDX
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Knoll Capital Management, LLC
13F
CIK 1325083 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,475,516 | ||
| 2 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,751,558 | ||
| 2.1 |
AQR CAPITAL MANAGEMENT LLC
13G
CIK 1167557 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
3,751,558 | ||
| 2.2 |
AQR Small Cap Momentum Style Fund
Fund
S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
|
10,953 | ||
| 3 |
KINGDON CAPITAL MANAGEMENT, L.L.C.
13F
CIK 1000097 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,652,315 | ||
| 4 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,361,796 | ||
| 5 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,940,338 | ||
| 6 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,784,433 | ||
| 7 |
|
1,721,298 | ||
| 8 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,506,974 | ||
| 9 |
683 Capital Management, LLC
13F
CIK 1404574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,450,000 | ||
| 10 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,375,115 | ||
| 11 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,257,243 | ||
| 11.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,045,764 | ||
| 11.2 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
187,530 | ||
| 11.3 |
iShares Core S&P Total U.S. Stock Market ETF
Fund
S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
93,498 | ||
| 12 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,128,803 | ||
| 13 |
ACADIAN ASSET MANAGEMENT LLC
13F
CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,063,793 | ||
| 14 |
ARDSLEY ADVISORY PARTNERS LP
13F
CIK 900529 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
975,000 | ||
| 15 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
882,000 | ||
| 16 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
794,863 | ||
| 17 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
725,444 | ||
| 17.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
74,423 | ||
| 17.2 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
|
65,611 | ||
| 18 |
JACOBS LEVY EQUITY MANAGEMENT, INC
13F
CIK 884414 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
646,840 | ||
| 19 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
608,321 | ||
| 20 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
596,029 | ||
| 21 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
529,083 | ||
| 21.1 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
140,334 | ||
| 21.2 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
28,130 | ||
| 21.3 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
11,716 | ||
| 22 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
521,515 | ||
| 23 |
GSA CAPITAL PARTNERS LLP
13F
CIK 1362033 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
472,564 | ||
| 24 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
421,178 | ||
| 25 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
379,144 | ||
| 26 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
360,350 | ||
| 27 |
VANGUARD EXPLORER FUND
Fund
S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
|
331,506 | ||
| 28 |
SMALL COMPANY GROWTH PORTFOLIO
Fund
S000004394 · Registered fund · Jun 30, 2026
VANGUARD VARIABLE INSURANCE FUNDS, not summed
|
308,146 | ||
| 29 |
|
301,940 | ||
| 30 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
298,242 | ||
| 31 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
276,801 | ||
| 32 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
254,777 | ||
| 33 |
WOODSTOCK CORP
13F
CIK 1008877 · Registered investment adviser · Sep 30, 2026
|
242,756 | ||
| 34 |
|
233,774 | ||
| 35 |
|
221,799 | ||
| 36 |
IEQ CAPITAL, LLC
13F
CIK 1779789 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
206,593 | ||
| 37 |
CANTOR FITZGERALD, L. P.
13F
CIK 1024896 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
200,000 | ||
| 38 |
|
195,000 | ||
| 39 |
Caption Management, LLC
13F
CIK 1706766 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
165,000 | ||
| 40 |
WELLS FARGO & COMPANY/MN
13F
CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
162,336 | ||
| 41 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
159,540 | ||
| 41.1 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
105,149 | ||
| 41.2 |
Invesco NASDAQ Future Gen 200 ETF
Fund
S000077288 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
14,073 | ||
| 42 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
157,248 | ||
| 43 |
Palo Alto Investors LP
13F
CIK 1306923 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
155,709 | ||
| 44 |
VANGUARD HEALTH CARE INDEX FUND
Fund
S000004450 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
154,611 | ||
| 45 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
154,408 | ||
| 46 |
Connor, Clark & Lunn Investment Management Ltd.
13F
CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
154,292 | ||
| 47 |
Man Group plc
13F
CIK 1637460 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
152,713 | ||
| 48 |
Jain Global LLC
13F
CIK 2024579 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
131,502 | ||
| 49 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
127,849 | ||
| 50 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
109,578 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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