StockCIK 1520262

Alkermes plc. (ALKS): Insider Trades and Fund Holdings

In the past 12 months, Alkermes plc. insiders reported 0 open-market purchases worth $0 and 4 sales worth $977K; 4 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$977KSold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 2, 2026.

Recent ALKS insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 2	Oct 2	David Joseph GaffinGeneral Counsel	General Counsel	▼ SELL10b5-1	2,034	41.03	$83K	−0.9%	Form 4 ↗
Sep 3	Sep 3	David Joseph GaffinGeneral Counsel	General Counsel	▼ SELL10b5-1	2,034	48.01	$98K	−0.9%	Form 4 ↗
Sep 1	Sep 1	Craig C. HopkinsonEVP	EVP	▼ SELL10b5-1	9,000	46.99	$423K	−12%	Form 4 ↗
Aug 17	Aug 17	Christian Todd NicholsSVP	SVP	▼ SELL10b5-1	7,576	49.23	$373K	−6.9%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

Insider	Role	Bought	Sells	Sold	Latest
David Joseph Gaffin	General Counsel	$0	2	$181K	Oct 2, 2026
Craig C. Hopkinson	EVP	$0	1	$423K	Sep 1, 2026
Christian Todd Nichols	SVP	$0	1	$373K	Aug 17, 2026

Tracked funds that report ALKS

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Renaissance Technologies	Q2 2026	6,460,928	$338.5M	0.47%	▲ +4.9%
Bridgewater Associates	Q2 2026	0	$0	0.00%	▼ Sold out

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →