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Alkermes plc.

ALKS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001520262

In the last 90 days, Alkermes plc. insiders filed 0 open-market purchases and 8 sales; 425 institutions reported holding it in 13F filings for Q2 2026, worth $9.32B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Alkermes plc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
8 filings
4 insiders, $4.24M in total
Insiders trading
4
Net value
−$4.24M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Alkermes plc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Alkermes plc.
NameTitleLast reported holdingLast filingFilings, past year
Gaffin David JosephEVP, CLO, Alkermes, Inc.223,422Sep 3, 202611
Hopkinson Craig C.EVP R&D, Chief Medical Officer65,389Sep 1, 202618
Nichols Christian ToddSVP, Chief Commercial Officer102,193Aug 17, 20266
Jackson Blair CurtisPresident & CEO, Alkermes plc241,308Aug 7, 20266
snyderman nancy lynn MDDirector15,395Aug 3, 20262
Wright Christopher IDirector25,680Jun 12, 20262
Parisi Samuel JosephVP, Finance (Interim PAO)7,717May 29, 20265
McKeon Brian PDirector38,536May 22, 20261
Laurencin Cato TDirector33,769May 22, 20261
Lurker NancyDirector18,222May 22, 20262
Wilson Frank AndersDirector35,751May 22, 20261
Cooke ShaneDirector103,744May 22, 20262
Gaynor RichardDirector31,084May 22, 20261
Pops Richard FDirector and CEO, Alkermes plc1,377,740Mar 4, 20262
Reed JoshuaSVP, Chief Financial Officer–Mar 4, 20262
Brown Iain MichaelSVP, Chief Financial Officer148,196Feb 28, 20250
Alva Emily PetersonDirector27,302Jul 1, 20240
Daglio David Angelo Jr.Director27,780Jul 1, 20240
Landine Michael JSVP, Corp Dev., Alkermes, Inc.281,730Feb 27, 20240
Wysenski NancyDirector20,356Jul 10, 20230
Anstice David WDirector84,905Jun 16, 20220
Dixon Wendy LDirector53,124Jun 16, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 3, 2026 (view filing)6:32 PM ETSep 3Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$48.01−$97.7K−0.9%223.4K after10b5-1
Sep 1, 2026 (view filing)7:08 PM ETSep 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$46.99−$422.9K−12.1%65.4K after10b5-1
Aug 17, 2026 (view filing)6:53 PM ETAug 17Same dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−7.58K$49.23−$372.9K−6.9%102.2K after2 lots10b5-1
Aug 3, 2026 (view filing)7:16 PM ETAug 3Same daysnyderman nancy lynn MDDirectorSSale−44.5K$50.35−$2.24M−74.3%15.4K after
Aug 3, 2026 (view filing)7:12 PM ETAug 3Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$48.58−$437.2K−11.5%69.4K after10b5-1
Aug 3, 2026 (view filing)7:09 PM ETAug 3Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$48.58−$98.8K−0.9%225.5K after10b5-1
Jul 6, 2026 (view filing)4:48 PM ETJul 6Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$54.03−$109.9K−0.9%227.5K after10b5-1
Jul 1, 2026 (view filing)6:29 PM ETJul 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$51.51−$463.6K−10.9%73.4K after2 lots10b5-1
Jun 12, 2026 (view filing)Jun 12Same dayWright Christopher IDirectorSSale−2.00K$45.10−$90.2K−7.2%25.7K after10b5-1
Jun 4, 2026 (view filing)Jun 4Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$43.05−$87.6K−0.9%229.5K after10b5-1
Jun 1, 2026 (view filing)Jun 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$41.67−$375.0K−10.4%77.4K after10b5-1
May 29, 2026 (view filing)May 29Same dayParisi Samuel JosephVP, Finance (Interim PAO)SSale−16.2K$42.36−$687.0K−67.8%7.72K after
May 4, 2026 (view filing)May 4Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$33.20−$67.5K−0.9%231.6K after10b5-1
May 1, 2026 (view filing)May 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$33.40−$300.6K−10.0%81.4K after10b5-1
Apr 6, 2026 (view filing)Apr 6Same dayGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−2.03K$34.57−$70.3K−0.9%233.6K after10b5-1
Apr 1, 2026 (view filing)Apr 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$35.51−$319.6K−9.5%85.4K after10b5-1
Mar 4, 2026 (view filing)Mar 22 daysParisi Samuel JosephVP, Finance (Interim PAO)SSale−6.89K$29.29−$201.8K−47.2%7.72K after10b5-1
Mar 4, 2026 (view filing)Mar 22 daysNichols Christian ToddSVP, Chief Commercial OfficerSSale−6.00K$30.00−$180.0K−5.2%109.8K after10b5-1
Mar 4, 2026 (view filing)Mar 22 daysHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$29.72−$267.5K−9.1%89.4K after10b5-1
Mar 4, 2026 (view filing)Mar 2-32 daysGaffin David JosephEVP, CLO, Alkermes, Inc.SSale−4.07K$29.53−$120.1K−1.7%235.6K after2 lots10b5-1
Feb 2, 2026 (view filing)Feb 2Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$33.93−$305.4K−13.5%57.7K after2 lots10b5-1
Feb 2, 2026 (view filing)Feb 2Same dayCooke ShaneDirectorSSale−61.2K$34.57−$2.12M−37.1%103.7K after2 lots10b5-1
Jan 8, 2026 (view filing)Jan 8Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−5.00K$30.00−$150.0K−7.5%61.7K after10b5-1
Jan 2, 2026 (view filing)Jan 2Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−4.00K$28.00−$112.0K−6.1%61.7K after10b5-1
Dec 5, 2025 (view filing)Dec 32 daysHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−3.75K$30.00−$112.4K−5.4%65.7K after10b5-1
Dec 1, 2025 (view filing)Dec 1Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−4.00K$29.30−$117.2K−5.7%65.7K after10b5-1
Nov 3, 2025 (view filing)Nov 3Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$30.38−$273.4K−11.4%69.7K after10b5-1
Oct 15, 2025 (view filing)Oct 15Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.00K$31.53−$283.8K−10.9%73.7K after10b5-1
Jun 10, 2025 (view filing)Jun 9-101 dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−6.67K$31.52−$210.1K−7.2%86.2K after2 lots10b5-1
Feb 28, 2025 (view filing)Feb 28Same dayParisi Samuel JosephVP, Finance (Interim PAO)SSale−1.94K$34.00−$65.9K−20.1%7.72K after10b5-1
Feb 25, 2025 (view filing)Feb 25Same dayParisi Samuel JosephVP, Finance (Interim PAO)SSale−3.74K$35.26−$132.0K−32.7%7.72K after10b5-1
Feb 20, 2025 (view filing)Feb 20Same dayParisi Samuel JosephVP, Finance (Interim PAO)SSale−1.33K$35.69−$47.4K−14.7%7.72K after10b5-1
Feb 14, 2025 (view filing)Feb 12-132 daysHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−349.3K$33.92−$11.8M−85.8%57.9K after4 lots10b5-1
Jan 31, 2025 (view filing)Jan 301 dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−100.9K$32.05−$3.23M−69.5%44.3K after10b5-1
Dec 9, 2024 (view filing)Dec 9Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−61.2K$32.07−$1.96M−56.2%47.6K after10b5-1
Dec 9, 2024 (view filing)Dec 9Same dayLaurencin Cato TDirectorSSale−2.69K$31.85−$85.7K−10.5%23.0K after10b5-1
Dec 5, 2024 (view filing)Dec 5Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−9.22K$31.50−$290.5K−13.4%59.7K after10b5-1
Dec 4, 2024 (view filing)Dec 4Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−14.3K$30.77−$441.5K−17.2%69.0K after10b5-1
Nov 27, 2024 (view filing)Nov 27Same dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−5.21K$29.15−$151.8K−7.9%60.7K after10b5-1
Nov 12, 2024 (view filing)Nov 111 dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−59.0K$30.08−$1.77M−41.5%83.3K after10b5-1
Nov 6, 2024 (view filing)Nov 6Same dayHopkinson Craig C.EVP R&D, Chief Medical OfficerSSale−10.5K$29.53−$309.2K−9.5%99.2K after10b5-1
Mar 18, 2024 (view filing)Mar 18Same dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−10.4K$28.10−$292.7K−13.6%65.9K after10b5-1
Feb 27, 2024 (view filing)Feb 27Same dayParisi Samuel JosephVP, Finance (Interim PAO)SSale−2.56K$29.65−$75.9K−24.9%7.72K after
Feb 16, 2024 (view filing)Feb 151 dayLaurencin Cato TDirectorSSale−2.69K$31.85−$85.7K−15.1%15.2K after10b5-1
Jun 8, 2023 (view filing)Jun 8Same dayLaurencin Cato TDirectorSSale−2.64K$31.85−$84.0K−26.1%7.48K after10b5-1
Jun 7, 2023 (view filing)Jun 7Same dayLaurencin Cato TDirectorSSale−2.80K$31.50−$88.2K−27.2%7.48K after10b5-1
May 30, 2023 (view filing)May 30Same dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−27.1K$28.93−$785.0K−39.8%41.0K after10b5-1
May 10, 2023 (view filing)May 91 dayWysenski NancyDirectorSSale−41.3K$31.24−$1.29M−72.3%15.8K after10b5-1
Nov 16, 2022 (view filing)Nov 142 daysDaglio David Angelo Jr.DirectorPPurchase+35.0K$23.31+$815.9K+77.8%80.0K after
Jun 21, 2022 (view filing)Jun 21Same dayNichols Christian ToddSVP, Chief Commercial OfficerSSale−7.47K$28.26−$211.2K−26.2%21.0K after