ALDX

Aldeyra Therapeutics Inc$1.72 10.42%
Health CareUSCUSIP 01438T106· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
104
-4 QoQ
13F Value (tracked)
$58.2M
Insider Net · 180d
$524K
3↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)26 adding · 15 trimming
Insider net (180d)+$524K

Price & smart-money activity

$1.72 10.42%5Y -81.8%
$0.44$3.35$6.27$9.19$12.10202120222023202420252026622101281421610101312141416142022141921823412165151121511191416202023311524212272824
Hover for who · click for detailEnd-of-day closing prices52w $1.24 – $5.89

Top institutional holders

104 tracked 13F filers
1 source-reported value row is withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1Knoll Capital Management, LLC
$9.3M
5.5M
Held
Q1 2026
2BlackRock, Inc.
$6.4M
3.8M
−2.2%
Reduced · −86K sh
Q1 2026
3AQR CAPITAL MANAGEMENT LLC
$4.8M
2.8M
+131%
Added · +1.6M sh
Q1 2026
4VANGUARD CAPITAL MANAGEMENT LLC
$4.0M
2.4M
New
+2.4M sh
Q1 2026
5KINGDON CAPITAL MANAGEMENT, L.L.C.
$3.6M
2.2M
+16%
Added · +302K sh
Q1 2026
6683 Capital Management, LLC
$2.5M
1.5M
−2.0%
Reduced · −30K sh
Q1 2026
7D. E. Shaw & Co., Inc.
$2.4M
1.4M
−12%
Reduced · −197K sh
Q1 2026
8GEODE CAPITAL MANAGEMENT, LLC
$2.1M
1.3M
+6.9%
Added · +81K sh
Q1 2026
9STATE STREET CORP
$1.9M
1.1M
+2.4%
Added · +26K sh
Q1 2026
10MILLENNIUM MANAGEMENT LLC
$1.7M
995K
23×
Added · +951K sh
Q1 2026
11ARDSLEY ADVISORY PARTNERS LP
$2.1M
975K
+2.6%
Added · +25K sh
Q2 2026
12JANE STREET GROUP, LLC
$1.6M
969K
+219%
Added · +665K sh
Q1 2026
13RENAISSANCE TECHNOLOGIES LLC
$1.5M
863K
+147%
Added · +513K sh
Q1 2026
14VANGUARD PORTFOLIO MANAGEMENT LLC
$1.4M
808K
New
+808K sh
Q1 2026
15JACOBS LEVY EQUITY MANAGEMENT, INC
$1.3M
797K
−18%
Reduced · −172K sh
Q1 2026
16DIMENSIONAL FUND ADVISORS LP
$1.1M
624K
+1.9%
Added · +12K sh
Q1 2026
17GOLDMAN SACHS GROUP INC
$918K
543K
+78%
Added · +237K sh
Q1 2026
18UBS Group AG
$908K
538K
+462%
Added · +442K sh
Q1 2026
19MORGAN STANLEY
$877K
519K
−21%
Reduced · −138K sh
Q1 2026
20NORTHERN TRUST CORP
$633K
375K
−1.2%
Reduced · −5K sh
Q1 2026
21VANGUARD FIDUCIARY TRUST CO
$572K
339K
New
+339K sh
Q1 2026
22SUSQUEHANNA INTERNATIONAL GROUP, LLP
$471K
278K
+343%
Added · +216K sh
Q1 2026
23IEQ CAPITAL, LLC
$450K
267K
+85%
Added · +122K sh
Q1 2026
24CITADEL ADVISORS LLC
$450K
266K
Added
Added · +266K sh
Q1 2026
25TWO SIGMA INVESTMENTS, LP
$378K
224K
−22%
Reduced · −64K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
8
funds
Added
18
funds
Reduced
15
funds
Exited
0
funds

Funds that own ALDX also own

CompanyCo-held byCombined value
AMAZON.COM INCAMZN36 funds$10.1B
ELI LILLY & COLLY36 funds$2.7B
MICROSOFT CORPMSFT35 funds$12.5B
ALPHABET INC-CL AGOOGL35 funds$7.2B
BROADCOM INCAVGO35 funds$6.4B
META PLATFORMS INC-CLASS AMETA35 funds$5.7B
COSTCO WHOLESALE CORPCOST35 funds$2.7B
UNITEDHEALTH GROUP INCUNH35 funds$1.7B
ARISTA NETWORKS INCANET35 funds$1.3B
CAPITAL ONE FINANCIAL CORPCOF35 funds$1.1B
DANAHER CORPDHR35 funds$1.0B
ELEVANCE HEALTH INCELV35 funds$703.7M

Ranked by how many of ALDX's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$524K
3 insiders
Sells · 180d
$0
0 insiders
Net
$524K
3 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Jun 3, 2026Brady Todd CPresident and CEO, DirectorBuy (P)250K$418K
Mar 19, 2026DOUGLAS RICHARDDirectorBuy (P)70K$98K
Mar 18, 2026Alfieri MichaelPrincipal Financial OfficerBuy (P)5K$7K
Aug 13, 2025Alfieri MichaelPrincipal Financial OfficerBuy (P)3K$13K
Aug 11, 2025Machatha StephenChief Development OfficerSell (S)22K$114K
Apr 3, 2025PERCEPTIVE LIFE SCIENCES MASTER FUND LTD10% OwnerSell (S)3.4M$4.8M
Aug 12, 2024Greenberg BruceSee RemarksSell (S)11K$51K
Aug 12, 2024Machatha StephenChief Development OfficerSell (S)16K$76K
Apr 5, 2024EDELMAN JOSEPH10% OwnerBuy (P)38K$179K
Apr 4, 2024EDELMAN JOSEPH10% OwnerBuy (P)140K$655K
Apr 3, 2024PERCEPTIVE LIFE SCIENCES MASTER FUND LTD10% OwnerBuy (P)310K$1.3M
Apr 2, 2024PERCEPTIVE LIFE SCIENCES MASTER FUND LTD10% OwnerBuy (P)186K$640K

Institutional ownership over time

104 funds+27 since Q3 2024
054108Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $57.7M · 1 values withheld

Recent filings

15 shown

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Ask your agent what changed in ALDX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/ALDX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for ALDX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ALDX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.