Aldeyra Therapeutics, Inc. (ALDX) Institutional Ownership & Insider Trading

108 institutions reported holding Aldeyra Therapeutics, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 3 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

ALDXAldeyra Therapeutics, Inc.Follow ALDX — free

Biotechnology · Healthcare

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Market cap: 39.2M
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 2 Nov, in 9 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

108 institutions held 60.9% of the shares. Across filers that reported both quarters, shares held changed -1.1%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	108	37	-1.1%	31	18	42	33
Mar 26	123	37	-5.9%	50	14	35	28
Dec 25	134	39	-0.7%	36	18	46	11
Sep 25	128	39	+14.2%	51	20	23	13
Jun 25	122	34	-9.0%	41	19	31	21
Mar 25	123	37	+1.3%	23	23	44	14
Dec 24	117	37	+1.7%	34	20	21	14
Sep 24	111	36	+2.2%	32	14	23	7

Aldeyra Therapeutics, Inc. — questions

Who owns Aldeyra Therapeutics, Inc. stock?: 108 institutions reported Aldeyra Therapeutics, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: Knoll Capital Management, LLC (9.1%), AQR CAPITAL MANAGEMENT LLC (6.2%), KINGDON CAPITAL MANAGEMENT, L.L.C. (4.4%).
Are Aldeyra Therapeutics, Inc. insiders buying or selling?: 3 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Aldeyra Therapeutics, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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