What does CUSIP 01438T106 represent in this 13F holders report?

CUSIP 01438T106 is the security identifier for ALDX - Aldeyra Therapeutics, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held ALDX - Aldeyra Therapeutics, Inc. - Common Stock in Q4 2018?

75 institutional investors reported ALDX - Aldeyra Therapeutics, Inc. - Common Stock for Q4 2018. Use the holders table for investor-level position and value details.

Aldeyra Therapeutics, Inc. - Common Stock (ALDX)

CUSIP: 01438T106

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Common Stock
Shares outstanding: 59,794,743
Total 13F shares: 17,157,946
Share change: -905,997
Total reported value: $141,481,000
Put/Call ratio: 21%
Price per share: $8.30
Number of holders: 75
Value change: -$15,993,709
Number of buys: 44
Number of sells: 42

Quarterly Holders Quick Answers

What is CUSIP 01438T106?
CUSIP 01438T106 identifies ALDX - Aldeyra Therapeutics, Inc. - Common Stock in SEC institutional holdings data.

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Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2019
Previous quarter: Q3 2018

Recent filing periods for CUSIP 01438T106:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ALDX - Aldeyra Therapeutics, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
PERCEPTIVE ADVISORS LLC	13F	Company	5.2%	3,085,458	$42,579,000	—	30 Sep 2018	13F
FMR LLC	13F	Company	4.3%	2,564,333	$35,388,000	—	30 Sep 2018	13F
683 Capital Management, LLC	13F	Company	2.3%	1,350,000	$18,630,000	—	30 Sep 2018	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	1.9%	1,142,089	$15,761,000	—	30 Sep 2018	13F
CITIGROUP INC	13F	Company	1.7%	1,021,222	$14,093,000	—	30 Sep 2018	13F
VANGUARD GROUP INC	13F	Company	1.6%	947,876	$13,081,000	—	30 Sep 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	1.6%	947,225	$13,072,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	1.3%	796,788	$10,996,000	—	30 Sep 2018	13F
MANGROVE PARTNERS IM, LLC	13F	Company	1.2%	707,746	$9,767,000	—	30 Sep 2018	13F
Knoll Capital Management, LLC	13F	Company	0.81%	484,096	$6,317,000	—	30 Sep 2018	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.65%	391,000	$5,396,000	—	30 Sep 2018	13F
Informed Momentum Co LLC	13F	Company	0.52%	312,092	$4,307,000	—	30 Sep 2018	13F
STATE STREET CORP	13F	Company	0.41%	246,790	$3,406,000	—	30 Sep 2018	13F
GILDER GAGNON HOWE & CO LLC	13F	Company	0.36%	218,081	$3,010,000	—	30 Sep 2018	13F
NORTHERN TRUST CORP	13F	Company	0.34%	205,082	$2,831,000	—	30 Sep 2018	13F
CVI Holdings, LLC	13F	Company	0.33%	200,000	$2,760,000	—	30 Sep 2018	13F
Laurion Capital Management LP	13F	Company	0.33%	200,000	$2,760,000	—	30 Sep 2018	13F
Kepos Capital LP	13F	Company	0.32%	188,850	$2,606,000	—	30 Sep 2018	13F
Weiss Multi-Strategy Advisers LLC	13F	Company	0.31%	185,000	$2,553,000	—	30 Sep 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.26%	156,335	$2,157,000	—	30 Sep 2018	13F
Russell Investments Group, Ltd.	13F	Company	0.25%	151,873	$2,098,000	—	30 Sep 2018	13F
Stonepine Capital Management, LLC	13F	Company	0.24%	145,000	$2,001,000	—	30 Sep 2018	13F
Bank of New York Mellon Corp	13F	Company	0.22%	130,015	$1,795,000	—	30 Sep 2018	13F
Alyeska Investment Group, L.P.	13F	Company	0.21%	125,000	$1,725,000	—	30 Sep 2018	13F
Hikari Power Ltd	13F	Company	0.18%	107,858	$1,488,000	—	30 Sep 2018	13F
Marshall Wace North America L.P.	13F	Company	0.17%	100,878	$1,392,000	—	30 Sep 2018	13F
SG Americas Securities, LLC	13F	Company	0.16%	94,269	$1,301,000	—	30 Sep 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.15%	89,911	$1,241,000	—	30 Sep 2018	13F
Global IMC LLC	13F	Company	0.14%	86,614	$1,195,000	—	30 Sep 2018	13F
ALKEON CAPITAL MANAGEMENT LLC	13F	Company	0.14%	85,000	$1,173,000	—	30 Sep 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.14%	82,882	$1,144,000	—	30 Sep 2018	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.13%	77,518	$1,070,000	—	30 Sep 2018	13F
MOORE CAPITAL MANAGEMENT, LP	13F	Company	0.13%	75,000	$1,035,000	—	30 Sep 2018	13F
OXFORD ASSET MANAGEMENT LLP	13F	Company	0.13%	75,446	$1,027,000	—	30 Sep 2018	13F
Virtu Financial LLC	13F	Company	0.12%	73,023	$1,008,000	—	30 Sep 2018	13F
Maven Securities LTD	13F	Company	0.12%	72,464	$989,000	—	30 Sep 2018	13F
Endurant Capital Management LP	13F	Company	0.12%	70,000	$966,000	—	30 Sep 2018	13F
WOODSTOCK CORP	13F	Company	0.11%	67,759	$935,000	—	30 Sep 2018	13F
SIMPLEX TRADING, LLC	13F	Company	0.1%	58,745	$810,000	—	30 Sep 2018	13F
ARDSLEY ADVISORY PARTNERS LP	13F	Company	0.09%	55,000	$759,000	—	30 Sep 2018	13F
COWEN INC.	13F	Company	0.07%	43,500	$600,000	—	30 Sep 2018	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.07%	40,929	$565,000	—	30 Sep 2018	13F
DRW Securities, LLC	13F	Company	0.07%	40,681	$561,000	—	30 Sep 2018	13F
Trexquant Investment LP	13F	Company	0.06%	38,736	$535,000	—	30 Sep 2018	13F
DEUTSCHE BANK AG\	13F	Company	0.06%	38,361	$530,000	—	30 Sep 2018	13F
Mesirow Financial Investment Management, Inc.	13F	Company	0.06%	38,097	$526,000	—	30 Sep 2018	13F
MORGAN STANLEY	13F	Company	0.06%	36,226	$500,000	—	30 Sep 2018	13F
FNY Investment Advisers, LLC	13F	Company	0.05%	30,405	$419,000	—	30 Sep 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.05%	29,700	$410,000	—	30 Sep 2018	13F
FALCON POINT CAPITAL, LLC	13F	Company	0.05%	28,772	$397,000	—	30 Sep 2018	13F

Institutional Holders of Aldeyra Therapeutics, Inc. - Common Stock (ALDX) as of Q4 2018

As of 31 Dec 2018, Aldeyra Therapeutics, Inc. - Common Stock (ALDX) was held by 75 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 17,157,946 shares. The largest 10 holders included PERCEPTIVE ADVISORS LLC, FMR LLC, 683 Capital Management, LLC, BlackRock Inc., SPHERA FUNDS MANAGEMENT LTD., Vanguard Group Inc, MANGROVE PARTNERS, MILLENNIUM MANAGEMENT LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., and Knoll Capital Management, LP. This page lists 75 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

Q4 2018 holders

Holder diff

-15

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.