Aldeyra Therapeutics, Inc. (ALDX) has 20 known insider and institutional holders on record. The largest holder is EDELMAN JOSEPH with 11,350,085 shares. Other notable holders include PERCEPTIVE ADVISORS LLC and Brady Todd C.
Over the last 12 months, insiders have made 14 transactions in ALDX stock — 12 buys (valued at $338.28K) and 1 sells (valued at $113.71K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ALDX Insider Ownership
Top Holder
EDELMAN JOSEPH
11,350,085 shares
Buys (12 mo)
12
$338.28K value
Sells (12 mo)
1
$113.71K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Edelman Joseph |
Director |
11,350,085 |
2022-08-11 |
|
| 2 |
Perceptive Advisors Llc |
10 Percent Owner |
5,875,851 |
2025-04-07 |
|
| 3 |
Brady Todd C |
President and CEO |
632,318 |
2026-03-31 |
|
| 4 |
Reed Joshua |
Chief Financial Officer |
250,000 |
2022-04-01 |
|
| 5 |
Mcmullin David |
Chief Commercial Officer |
250,000 |
2020-03-06 |
|
| 6 |
Machatha Stephen |
Chief Development Officer |
221,799 |
2025-08-13 |
|
| 7 |
Douglas Richard |
Director |
195,000 |
2026-03-20 |
|
| 8 |
Greenberg Bruce |
See Remarks |
126,382 |
2024-08-14 |
|
| 9 |
Clark William D |
Director |
76,760 |
2025-04-18 |
|
| 10 |
Clark David J |
Chief Medical Officer |
17,878 |
2019-09-10 |
|
| 11 |
Shah Nimesh |
10 Percent Owner |
10,358 |
2015-12-18 |
|
| 12 |
Domain Associates |
10 Percent Owner |
10,358 |
2014-05-01 |
|
| 13 |
Young Scott |
Chief Operating Officer |
10,000 |
2016-03-18 |
|
| 14 |
Alfieri Michael |
Principal Financial Officer |
7,500 |
2026-03-19 |
|
| 15 |
Clarke C. Boyd |
Director |
6,083 |
2016-06-10 |
|
| 16 |
Tulipano Stephen J |
Chief Financial Officer |
5,410 |
2018-03-08 |
|
| 17 |
Bronstein Ben |
Director |
3,860 |
2025-06-12 |
|
| 18 |
Phillips Gary M. |
Director |
3,619 |
2025-06-12 |
|
| 19 |
Miller-rich Nancy |
Director |
2,413 |
2025-06-12 |
|
| 20 |
Walker Neal |
Director |
2,413 |
2025-06-12 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-27 |
Brady Todd C |
President and CEO |
RSU Award |
632,318 |
- |
- |
| 2026-03-19 |
Douglas Richard |
Director |
Informative Buy |
70,000 |
$1.40 |
$98K |
| 2026-03-18 |
Alfieri Michael |
Principal Financial Officer |
Informative Buy |
5,000 |
$1.42 |
$7.1K |
| 2025-08-13 |
Alfieri Michael |
Principal Financial Officer |
Informative Buy |
2,500 |
$5.30 |
$13.25K |
| 2025-08-11 |
Machatha Stephen |
Chief Development Officer |
Informative Sell |
22,073 |
$5.15 |
$113.71K |
| 2025-06-10 |
Miller-rich Nancy |
Director |
RSU Award |
2,413 |
$2.69 |
$6.48K |
| 2025-06-10 |
Bronstein Ben |
Director |
RSU Award |
3,619 |
$2.69 |
$9.72K |
| 2024-06-10 |
Bronstein Ben |
Director |
RSU Award |
3,860 |
$2.69 |
$10.36K |
| 2025-06-10 |
Walker Neal |
Director |
RSU Award |
2,413 |
$2.69 |
$6.48K |
| 2025-06-10 |
Joyce Martin Joseph |
Director |
RSU Award |
1,689 |
$2.69 |
$4.53K |
| 2025-06-10 |
Phillips Gary M. |
Director |
RSU Award |
3,619 |
$2.69 |
$9.72K |
| 2025-06-10 |
Douglas Richard |
Director |
RSU Award |
1,689 |
$2.69 |
$4.53K |
| 2025-04-17 |
Clark William D |
Director |
RSU Award |
76,760 |
$2.19 |
$168.1K |
| 2025-04-17 |
Clark William D |
Officer |
Unknown |
- |
- |
- |
