Insider · CIK 0001969821

Firestone Karen

Reports to the SEC for 1 company · CAMBRIDGE, MA

sec.gov

Transactions

Companies

Filings

CIK

0001969821

Forms 4 and 5

Insider transactions

14 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-31	AMLXAmylyx Pharmaceuticals, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+25K sh	$1.76	+$44K	91,900
2026-08-31	AMLXAmylyx Pharmaceuticals, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+25K sh	$5.05	+$126K	116,900
2026-08-31	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−25K sh	—	—	0
2026-08-31	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−25K sh	—	—	0
2026-06-04	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+24.4K sh	—	—	24,372
2026-05-21	AMLXAmylyx Pharmaceuticals, Inc.P Purchase	Director	PPurchase	+3,800 sh	$13.51	+$51.3K	66,900
2025-12-23	AMLXAmylyx Pharmaceuticals, Inc.P Purchase	Director	PPurchase	+8,100 sh	$12.45	+$101K	63,100
2025-06-05	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+25K sh	—	—	25,000
2024-09-05	AMLXAmylyx Pharmaceuticals, Inc.P Purchase	Director	PPurchase	+50K sh	$2.13	+$107K	55,000
2024-06-06	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+25K sh	—	—	25,000
2023-12-15	AMLXAmylyx Pharmaceuticals, Inc.P Purchase	Director	PPurchase	+4,000 sh	$14.97	+$59.9K	5,000
2023-06-08	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (right to buy)A Award	Director	AAward	+3,908 sh	—	—	3,908
2023-03-16	AMLXAmylyx Pharmaceuticals, Inc.P Purchase	Director	PPurchase	+1,000 sh	$31.99	+$32K	1,000
2023-03-16	AMLXAmylyx Pharmaceuticals, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+27.4K sh	—	—	27,403

Recent filings

Accepted (ET)
Sep 24
Firestone Karen0001193125-26-380152
SEC(opens sec.gov)
Jun 84
Firestone Karen0001193125-26-261641
SEC(opens sec.gov)
May 264
Firestone Karen0001193125-26-239216
SEC(opens sec.gov)
Dec 234
Firestone Karen0001193125-25-331289
SEC(opens sec.gov)
Jun 94
Firestone Karen0000950170-25-083719
SEC(opens sec.gov)
Sep 94
Firestone Karen0000950170-24-104737
SEC(opens sec.gov)
Jun 74
Firestone Karen0000950170-24-070804
SEC(opens sec.gov)
Dec 194
Firestone Karen0000950170-23-071533
SEC(opens sec.gov)
Jun 124
Firestone Karen0000899243-23-015412
SEC(opens sec.gov)
Mar 204
Firestone Karen0000899243-23-009172
SEC(opens sec.gov)

Companies

Amylyx Pharmaceuticals, Inc.DirectorAMLX

Address

C/O AMYLYX PHARMACEUTICALS, INC. 55 CAMBRIDGE PARKWAY, SUITE 6W

CAMBRIDGE, MA, 02142