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Amylyx Pharmaceuticals Insider Trading Activity

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Last update: Dec 18, 11:22 AM

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Amylyx Pharmaceuticals Insider Trading Activity | NASDAQ:AMLX | Benzinga

Track the latest Amylyx Pharmaceuticals insider trading activity. Stay informed on recent buys, sells, and market impact for Amylyx Pharmaceuticals stock.

What is Insider Activity?

Insider trading activity involves company insiders, such as executives, directors, and employees, engaging in transactions of their own company's stock. Insiders' buy and sell transactions provide valuable insights into their confidence in the company's future performance.

What are Amylyx Pharmaceuticals Inc Insiders Doing?

At Amylyx Pharmaceuticals Inc, recent insider activity has drawn attention. Over the last 30 days, insiders have reported selling a total of 6.58K shares worth $94.42K, meanwhile, insiders have report no purchases in the last 30 days.

Notable Recent Insider Buys and Sales

On December 3, 2025, Camille Bedrosian, the company's CHIEF MEDICAL OFFICER sold 6.58K shares for $14.35 each.
On October 2, 2025, Gina Mazzariello, the company's CHIEF LEGAL OFFICER sold 8.83K shares for $14.58 each.
On October 2, 2025, JAMES FRATES, the company's CHIEF FINANCIAL OFFICER sold 10.56K shares for $14.65 each.

Ownership Statistics for Amylyx Pharmaceuticals Inc

Shares Outstanding

106.667M

Insider Shares Owned

8.654M

Insider Percentage Owned

7.88%

Institutional Shares Held

38.293M

Institutional Percentage Held

34.9%


Dec 03, 2025	Camille Bedrosian	CHIEF MEDICAL OFFICER	-6.58K	$14.35	-$94.42K	SELL	-3.61%	175.76K	Dec 01	View
Oct 02, 2025	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-29.98K	$14.38	-$430.95K	SELL	-0.89%	3.33M	Sep 30	View
Oct 02, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-8.83K	$14.58	-$128.67K	SELL	-5.62%	148.14K	Sep 30	View
Oct 02, 2025	JAMES FRATES	CHIEF FINANCIAL OFFICER	-10.56K	$14.65	-$154.65K	SELL	-3.50%	291.50K	Sep 30	View
Oct 02, 2025	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-29.93K	$14.35	-$429.47K	SELL	-0.89%	3.33M	Sep 30	View
Oct 02, 2025	Camille Bedrosian	CHIEF MEDICAL OFFICER	-12.04K	$14.58	-$175.52K	SELL	-6.19%	182.34K	Sep 30	View
Aug 14, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-30.00K	$8.20	-$246.15K	SELL	-16.05%	156.97K	Aug 12 - Aug 13	View
Apr 02, 2025	JAMES FRATES	CHIEF FINANCIAL OFFICER	-10.90K	$3.47	-$37.81K	SELL	-3.48%	302.06K	Mar 31	View
Apr 02, 2025	Camille Bedrosian	CHIEF MEDICAL OFFICER	-12.43K	$3.47	-$43.08K	SELL	-6.01%	194.38K	Mar 31	View
Apr 02, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-9.19K	$3.48	-$31.95K	SELL	-4.66%	187.97K	Mar 31	View
Apr 02, 2025	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-21.49K	$3.47	-$74.48K	SELL	-0.64%	3.36M	Mar 31	View
Apr 02, 2025	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-21.49K	$3.46	-$74.45K	SELL	-0.64%	3.36M	Mar 31	View
Mar 24, 2025	Bernhardt Zeiher	—	10.00K	$3.70	$37.01K	BUY	∞	10.00K	Mar 20	View
Mar 05, 2025	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-4.59K	$3.15	-$14.48K	SELL	-0.14%	3.20M	Mar 03	View
Mar 05, 2025	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-4.59K	$3.17	-$14.55K	SELL	-0.14%	3.20M	Mar 03	View
Mar 05, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-1.61K	$3.12	-$5.02K	SELL	-1.19%	133.31K	Mar 03	View
Feb 26, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-4.17K	$3.15	-$13.14K	SELL	-3.00%	134.92K	Feb 24	View
Feb 05, 2025	Gina Mazzariello	CHIEF LEGAL OFFICER	-3.68K	$3.49	-$12.84K	SELL	-2.58%	139.09K	Feb 03	View
Feb 05, 2025	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-11.85K	$3.47	-$41.11K	SELL	-0.37%	3.20M	Feb 03	View
Feb 05, 2025	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-11.86K	$3.47	-$41.10K	SELL	-0.37%	3.16M	Feb 03	View
Jan 08, 2025	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-7.47K	$4.04	-$30.20K	SELL	-0.23%	3.18M	Jan 06	View
Jan 08, 2025	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-7.47K	$4.05	-$30.23K	SELL	-0.23%	3.21M	Jan 06	View
Dec 03, 2024	Camille Bedrosian	CHIEF MEDICAL OFFICER	-5.42K	$5.54	-$30.01K	SELL	-3.77%	138.38K	Dec 02	View
Oct 02, 2024	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-18.59K	$3.20	-$59.43K	SELL	-0.59%	3.12M	Sep 30	View
Oct 02, 2024	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-18.59K	$3.20	-$59.41K	SELL	-0.57%	3.22M	Sep 30	View
Oct 02, 2024	Camille Bedrosian	CHIEF MEDICAL OFFICER	-11.44K	$3.20	-$36.56K	SELL	-7.37%	143.80K	Sep 30	View
Oct 02, 2024	Gina Mazzariello	CHIEF LEGAL OFFICER	-8.71K	$3.20	-$27.84K	SELL	-5.75%	142.77K	Sep 30	View
Sep 16, 2024	JAMES FRATES	CHIEF FINANCIAL OFFICER	40.00K	$2.53	$101.37K	BUY	19.56%	244.54K	Sep 12	View
Sep 09, 2024	Karen Firestone	—	50.00K	$2.13	$106.59K	BUY	1000.00%	55.00K	Sep 05	View
Sep 05, 2024	GEORGE MILNE JR	—	100.00K	$2.20	$219.80K	BUY	13.18%	858.57K	Sep 03	View
May 16, 2024	Daphne Quimi	—	5.00K	$1.89	$9.44K	BUY	∞	5.00K	May 14 - May 15	View
May 16, 2024	Gina Mazzariello	CHIEF LEGAL OFFICER	-10.46K	$1.88	-$19.65K	SELL	-6.46%	151.48K	May 15	View
Mar 07, 2024	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-4.13K	$18.73	-$77.44K	SELL	-0.14%	3.02M	Mar 05	View
Mar 07, 2024	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-4.13K	$18.73	-$77.44K	SELL	-0.14%	2.96M	Mar 05	View
Mar 07, 2024	JAMES FRATES	CHIEF FINANCIAL OFFICER	-1.79K	$18.73	-$33.56K	SELL	-1.21%	145.86K	Mar 05	View
Mar 07, 2024	Gina Mazzariello	CHIEF LEGAL OFFICER	-1.54K	$18.73	-$28.84K	SELL	-1.86%	81.37K	Mar 05	View
Feb 27, 2024	Gina Mazzariello	CHIEF LEGAL OFFICER	-2.84K	$18.76	-$53.23K	SELL	-5.78%	46.24K	Feb 23	View
Jan 11, 2024	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-5.84K	$16.33	-$95.37K	SELL	-0.21%	2.84M	Jan 09	View
Jan 11, 2024	JAMES FRATES	CHIEF FINANCIAL OFFICER	-2.72K	$16.33	-$44.35K	SELL	-2.16%	123.11K	Jan 09	View
Jan 11, 2024	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-5.84K	$16.33	-$95.37K	SELL	-0.20%	2.90M	Jan 09	View
Jan 11, 2024	Patrick Yeramian	CHIEF MEDICAL OFFICER	-2.81K	$16.33	-$45.91K	SELL	-1.35%	205.60K	Jan 09	View
Dec 19, 2023	Karen Firestone	—	4.00K	$14.97	$59.88K	BUY	400.00%	5.00K	Dec 15	View
Aug 17, 2023	Gina Mazzariello	CHIEF LEGAL OFFICER	-6.16K	$20.88	-$128.69K	SELL	-11.16%	49.08K	Aug 15	View
May 18, 2023	JAMES FRATES	CHIEF FINANCIAL OFFICER	0.00	$16.91	-$651.85K	SELL-OPTIONS	0.00%	75.16K	May 16	View
May 17, 2023	Patrick Yeramian	CHIEF MEDICAL OFFICER	0.00	$17.36	-$279.37K	SELL-OPTIONS	0.00%	208.42K	May 15	View
Apr 19, 2023	Patrick Yeramian	CHIEF MEDICAL OFFICER	0.00	$15.76	-$1.46M	SELL-OPTIONS	0.00%	208.42K	Apr 17	View
Mar 31, 2023	Morningside Venture Investments Ltd	10% OWNER	-29.05K	$30.45	-$884.51K	SELL	-0.41%	7.00M	Mar 29	View
Mar 29, 2023	Morningside Venture Investments Ltd	10% OWNER	-160.96K	$30.42	-$4.90M	SELL	-2.24%	7.03M	Mar 27 - Mar 28	View
Mar 23, 2023	Morningside Venture Investments Ltd	10% OWNER	-63.45K	$31.91	-$2.02M	SELL	-0.88%	7.19M	Mar 21	View
Mar 20, 2023	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	-50.00K	$31.86	-$3.19M	SELL	-1.73%	2.84M	Mar 16	View
Mar 20, 2023	GEORGE MILNE JR	DIRECTOR	-35.00K	$31.89	-$1.12M	SELL	-3.90%	862.02K	Mar 16	View
Mar 20, 2023	Patrick Yeramian	CHIEF MEDICAL OFFICER	-45.46K	$31.87	-$1.74M	SELL	-22.25%	158.84K	Mar 16	View
Mar 20, 2023	Karen Firestone	DIRECTOR	1.00K	$31.99	$31.99K	BUY	∞	1.00K	Mar 16	View
Mar 20, 2023	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	-50.00K	$31.86	-$3.19M	SELL	-1.73%	2.84M	Mar 16	View
Mar 20, 2023	JAMES FRATES	CHIEF FINANCIAL OFFICER	-10.83K	$31.89	-$1.04M	SELL	-31.85%	23.18K	Mar 16	View
Mar 17, 2023	Morningside Venture Investments Ltd	10% OWNER	-9.12K	$32.55	-$296.92K	SELL	-0.13%	7.25M	Mar 16	View
Mar 16, 2023	Morningside Venture Investments Ltd	10% OWNER	-220.71K	$33.68	-$7.43M	SELL	-2.95%	7.26M	Mar 14 - Mar 15	View
Mar 06, 2023	Morningside Venture Investments Ltd	10% OWNER	-50.00K	$33.75	-$1.69M	SELL	-0.66%	7.48M	Mar 02	View
Feb 28, 2023	Gina Mazzariello	CHIEF LEGAL OFFICER	-3.59K	$34.49	-$123.67K	SELL	-8.75%	37.41K	Feb 24	View
Feb 28, 2023	Morningside Venture Investments Ltd	10% OWNER	-50.00K	$34.73	-$1.74M	SELL	-0.66%	7.53M	Feb 22	View
Feb 24, 2023	Morningside Venture Investments Ltd	10% OWNER	-100.00K	$35.78	-$3.58M	SELL	-1.30%	7.58M	Feb 22 - Feb 23	View
Jan 10, 2023	Patrick Yeramian	CHIEF MEDICAL OFFICER	2.03K	$36.30	$73.83K	s	1.01%	204.30K	Jan 06	View
Jan 10, 2023	Joshua B Cohen	CO-CHIEF EXECUTIVE OFFICER	5.97K	$36.30	$216.63K	s	0.21%	2.89M	Jan 06	View
Jan 10, 2023	JAMES FRATES	CHIEF FINANCIAL OFFICER	2.66K	$36.30	$96.48K	s	8.48%	34.01K	Jan 06	View
Jan 10, 2023	Margaret Olinger	CHIEF COMMERCIAL OFFICER	2.40K	$36.30	$87.23K	s	1.13%	214.35K	Jan 06	View
Jan 10, 2023	Justin Klee	CO-CHIEF EXECUTIVE OFFICER	5.97K	$36.30	$216.63K	s	0.21%	2.89M	Jan 06	View
Sep 09, 2022	VIKING GLOBAL INVESTORS LP Viking Global Opportunities Illiquid Investments SubMaster LP Viking Global Opportunities Portfolio GP LLC Viking Global Opportunities GP LLC Viking Global Opportunities Parent GP LLC ANDREAS OLE HALVORSEN David Ott Sharon Rose Shabet DRAGSA LLC	—	-1.40M	$29.80	-$41.72M	SELL	-43.06%	1.85M	Sep 08 - Sep 09	View
Jul 08, 2022	ALS Invest BV	10% OWNER	-60.61K	$20.70	-$1.25M	SELL	-1.02%	5.90M	Jul 06	View
Jan 25, 2022	Morningside Venture Investments Ltd	10% OWNER	10.68M	$19.00	$5.00M	BUY	∞	10.68M	Jan 11	View
Jan 13, 2022	VIKING GLOBAL INVESTORS LP Viking Global Opportunities Illiquid Investments SubMaster LP Viking Global Opportunities Portfolio GP LLC Viking Global Opportunities GP LLC Viking Global Opportunities Parent GP LLC ANDREAS OLE HALVORSEN David Ott Sharon Rose Shabet	—	7.17M	$19.00	$43.70M	BUY	∞	2.30M	Jan 11	View
Jan 10, 2022	Paul Fonteyne	DIRECTOR	3.95K	$19.00	$74.99K	BUY	∞	3.95K	Jan 06	View
Jan 10, 2022	Isaac Cheng	DIRECTOR	10.42M	$19.00	$124.98K	BUY	∞	6.58K	Jan 06	View
Jan 10, 2022	George Mclean Milne	DIRECTOR	26.32K	$19.00	$499.99K	BUY	13.49%	221.40K	Jan 06	View
Jan 10, 2022	Margaret Olinger	CHIEF COMMERCIAL OFFICER	35.17K	$19.00	$130.00K	BUY	19.37%	216.76K	Jan 06	View

FAQ

Is insider trading legal?

Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.

What are some examples of market manipulation?

Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.

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