David Joseph Gaffin

ALKS

David Joseph Gaffin serves as EVP, CLO, Alkermes, Inc. at Alkermes plc (ALKS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

22 trades

$3.44M

Net Position

Net Seller

$3.44M

Companies Traded

ALKS

Active Period

Feb 2021 – Feb 2026

22 total trades

Most Recent

Sell ALKS

Feb 18, 2026 · $177.1K

David Joseph Gaffin's Insider Trading at Alkermes plc (ALKS)

Buys

0 · $0.00

Sells

22 · $3.44M

Total Shares Bought

Total Shares Sold

122,353

ALKS Price Chart

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Date	Type	Shares	Avg Price	Value
Feb 18, 2026	Sell	5,533	$32.01	$177.1K
Feb 5, 2026	Sell	7,619	$33.55	$255.6K
Aug 3, 2025	Sell	895	$26.55	$23.8K
Feb 22, 2025	Sell	6,714	$35.32	$237.1K
Feb 18, 2025	Sell	2,822	$35.90	$101.3K
Feb 6, 2025	Sell	9,752	$31.39	$306.1K
Aug 3, 2024	Sell	895	$27.72	$24.8K
Feb 23, 2024	Sell	3,414	$29.57	$101.0K
Feb 22, 2024	Sell	3,300	$28.91	$95.4K
Feb 18, 2024	Sell	2,994	$30.39	$91.0K
Feb 8, 2024	Sell	8,483	$26.77	$227.1K
Aug 3, 2023	Sell	877	$27.63	$24.2K
Feb 22, 2023	Sell	3,224	$27.77	$89.5K
Feb 18, 2023	Sell	10,584	$28.01	$296.5K
Feb 18, 2022	Sell	4,204	$25.04	$105.3K
Feb 16, 2022	Sell	1,098	$26.79	$29.4K
Sep 14, 2021	Sell	4,634	$30.60	$141.8K
Jul 29, 2021	Sell	14,000	$26.00	$364.0K
Jun 10, 2021	Sell	13,500	$25.00	$337.5K
Jun 7, 2021	Sell	13,500	$24.00	$324.0K
May 14, 2021	Sell	2,250	$22.23	$50.0K
Feb 20, 2021	Sell	2,061	$19.58	$40.4K