Ben Bronstein

Insider

First SEC filing: June 11, 2026 · Latest: June 11, 2026

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

ALDX buying Sept. 17, 2019

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 35 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

35 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 9, 2026	ALDX	A	4,977	—	—	4,977 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2026	ALDX	A	5,309	—	—	5,309 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2026	ALDX	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-19)
June 10, 2025	ALDX	A	3,619	—	—	3,619 Direct	—	Acquired	(price as of 2026-08-19)
June 10, 2025	ALDX	A	62,728	—	—	62,728 Direct	—	Acquired	(price as of 2026-08-19)
June 10, 2024	ALDX	A	3,860	—	—	3,860 Direct	—	Acquired	(price as of 2026-08-19)
June 4, 2024	ALDX	A	2,778	—	—	2,778 Direct	—	Acquired	(price as of 2026-08-19)
June 4, 2024	ALDX	A	2,604	—	—	2,604 Direct	—	Acquired	(price as of 2026-08-19)
June 4, 2024	ALDX	A	40,282	—	—	40,282 Direct	—	Acquired	(price as of 2026-08-19)
June 30, 2023	ALDX	A	1,464	—	—	1,464 Direct	—	Acquired	(price as of 2026-08-19)
June 30, 2023	ALDX	A	1,372	—	—	1,372 Direct	—	Acquired	(price as of 2026-08-19)
June 30, 2023	ALDX	A	21,222	—	—	21,222 Direct	—	Acquired	(price as of 2026-08-19)
June 27, 2023	ALDX	M	9,604	—	—	0 Direct	—	Acquired	(price as of 2026-08-19)
June 27, 2023	ALDX	M	9,604	$0.55	$5,282	28,248 Direct	+51.51%	Acquired	183.8% (price as of 2026-08-19)
June 7, 2022	ALDX	A	3,711	—	—	3,711 Direct	—	Acquired	(price as of 2026-08-19)
June 7, 2022	ALDX	A	3,479	—	—	3,479 Direct	—	Acquired	(price as of 2026-08-19)
June 7, 2022	ALDX	A	53,812	—	—	53,812 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2021	ALDX	A	933	—	—	933 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2021	ALDX	A	875	—	—	875 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2021	ALDX	A	13,534	—	—	13,534 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2020	ALDX	A	1,541	—	—	1,541 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2020	ALDX	A	2,311	—	—	2,311 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2020	ALDX	A	26,503	—	—	26,503 Direct	—	Acquired	(price as of 2026-08-19)
Sept. 17, 2019	ALDX	P	1,700	$5.85	$9,945	18,644 Direct	+10.03%	Acquired	-73.3% (price as of 2026-08-19)
June 4, 2019	ALDX	A	1,102	—	—	1,102 Direct	—	Acquired	(price as of 2026-08-19)
June 4, 2019	ALDX	A	1,653	—	—	1,653 Direct	—	Acquired	(price as of 2026-08-19)
June 4, 2019	ALDX	A	18,951	—	—	18,951 Direct	—	Acquired	(price as of 2026-08-19)
June 7, 2018	ALDX	A	903	—	—	903 Direct	—	Acquired	(price as of 2026-08-19)
June 7, 2018	ALDX	A	1,354	—	—	1,354 Direct	—	Acquired	(price as of 2026-08-19)
June 7, 2018	ALDX	A	15,526	—	—	15,526 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2017	ALDX	A	1,481	—	—	1,481 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2017	ALDX	A	2,222	—	—	2,222 Direct	—	Acquired	(price as of 2026-08-19)
June 8, 2017	ALDX	A	17,776	—	—	17,776 Direct	—	Acquired	(price as of 2026-08-19)
Feb. 17, 2017	ALDX	P	4,444	$4.50	$19,998	16,944 Direct	+35.55%	Acquired	-65.3% (price as of 2026-08-19)
June 9, 2016	ALDX	A	6,083	—	—	6,083 Direct	—	Acquired	(price as of 2026-08-19)
June 9, 2015	ALDX	A	6,083	—	—	6,083 Direct	—	Acquired	(price as of 2026-08-19)
May 7, 2014	ALDX	A	12,166	—	—	12,166 Direct	—	Acquired	(price as of 2026-08-19)
May 7, 2014	ALDX	P	12,500	$8.00	$100,000	12,500 Direct	—	Acquired	-80.5% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 9, 2026	ALDX	Stock Option (Right to Buy)	Common Stock (4,977)	$1.72	June 8, 2036	4,977	Acquired
June 9, 2026	ALDX	Stock Option (Right to Buy)	Common Stock (5,309)	$1.72	June 8, 2036	5,309	Acquired
June 9, 2026	ALDX	Stock Option (Right to Buy)	Common Stock (70,000)	$1.72	June 8, 2036	70,000	Acquired
June 10, 2025	ALDX	Stock Option (Right to Buy)	Common Stock (3,619)	$2.68	June 9, 2035	3,619	Acquired
June 10, 2025	ALDX	Stock Option (Right to Buy)	Common Stock (62,728)	$2.68	June 9, 2035	62,728	Acquired
June 10, 2024	ALDX	Stock Option (Right to Buy)	Common Stock (3,860)	$2.68	June 9, 2035	3,860	Acquired
June 4, 2024	ALDX	Stock Option (Right to Buy)	Common Stock (2,778)	$4.09	June 3, 2034	2,778	Acquired
June 4, 2024	ALDX	Stock Option (Right to Buy)	Common Stock (2,604)	$4.09	June 3, 2034	2,604	Acquired
June 4, 2024	ALDX	Stock Option (Right to Buy)	Common Stock (40,282)	$4.09	June 3, 2034	40,282	Acquired
June 30, 2023	ALDX	Stock Option (Right to Buy)	Common Stock (1,464)	$8.39	June 29, 2033	1,464	Acquired
June 30, 2023	ALDX	Stock Option (Right to Buy)	Common Stock (1,372)	$8.39	June 29, 2033	1,372	Acquired
June 30, 2023	ALDX	Stock Option (Right to Buy)	Common Stock (21,222)	$8.39	June 29, 2033	21,222	Acquired
June 27, 2023	ALDX	Stock Option (Right to Buy)	Common Stock (9,604)	$0.55	Sept. 7, 2023	9,604	Acquired
June 7, 2022	ALDX	Stock Option (Right to Buy)	Common Stock (3,711)	$3.60	June 6, 2032	3,711	Acquired
June 7, 2022	ALDX	Stock Option (Right to Buy)	Common Stock (3,479)	$3.60	June 6, 2032	3,479	Acquired
June 7, 2022	ALDX	Stock Option (Right to Buy)	Common Stock (53,812)	$3.60	June 6, 2032	53,812	Acquired
June 8, 2021	ALDX	Stock Option (Right to Buy)	Common Stock (933)	$12.97	June 7, 2031	933	Acquired
June 8, 2021	ALDX	Stock Option (Right to Buy)	Common Stock (875)	$12.97	June 7, 2031	875	Acquired
June 8, 2021	ALDX	Stock Option (Right to Buy)	Common Stock (13,534)	$12.97	June 7, 2031	13,534	Acquired
June 9, 2020	ALDX	Stock Option (Right to Buy)	Common Stock (1,541)	$5.02	June 8, 2030	1,541	Acquired
June 9, 2020	ALDX	Stock Option (Right to Buy)	Common Stock (2,311)	$5.02	June 8, 2030	2,311	Acquired
June 9, 2020	ALDX	Stock Option (Right to Buy)	Common Stock (26,503)	$5.02	June 8, 2030	26,503	Acquired
June 4, 2019	ALDX	Employee Stock Option (Right to Buy)	Common Stock (1,102)	$7.06	June 3, 2029	1,102	Acquired
June 4, 2019	ALDX	Employee Stock Option (Right to Buy)	Common Stock (1,653)	$7.06	June 3, 2029	1,653	Acquired
June 4, 2019	ALDX	Employee Stock Option (Right to Buy)	Common Stock (18,951)	$7.06	June 3, 2029	18,951	Acquired
June 7, 2018	ALDX	Employee Stock Option (Right to Buy)	Common Stock (903)	$8.35	June 6, 2028	903	Acquired
June 7, 2018	ALDX	Employee Stock Option (Right to Buy)	Common Stock (1,354)	$8.35	June 6, 2028	1,354	Acquired
June 7, 2018	ALDX	Employee Stock Option (Right to Buy)	Common Stock (15,526)	$8.35	June 6, 2028	15,526	Acquired
June 8, 2017	ALDX	Stock Option (Right to Buy)	Common Stock (1,481)	$5.15	June 7, 2027	1,481	Acquired
June 8, 2017	ALDX	Stock Option (Right to Buy)	Common Stock (2,222)	$5.15	June 7, 2027	2,222	Acquired
June 8, 2017	ALDX	Stock Option (Right to Buy)	Common Stock (17,776)	$5.15	June 7, 2027	17,776	Acquired
June 9, 2016	ALDX	Employee Stock Option (Right to Buy)	Common Stock (6,083)	$5.97	June 8, 2026	6,083	Acquired
June 9, 2015	ALDX	Employee Stock Option (Right to Buy)	Common Stock (6,083)	$7.74	June 8, 2025	6,083	Acquired
May 7, 2014	ALDX	Employee Stock Option (Right to Buy)	Common Stock (12,166)	$8.00	May 6, 2024	12,166	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
May 1, 2014	ALDX	Employee Stock Option (Right to Buy)→ Common Stock (9,604)	9,604	Direct