NASDAQ:ALKS

Alkermes Stock Insider Trading

Healthcare > Biotechnology

Buy ALKS

*Your capital is at risk

$42.76

+1.44 (+3.48%)

At Close: Jun 03, 2026

Alkermes Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 10.04. In total, the insiders bought 1.09M and sold 104.2K ALKS shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	10.04
● Buy	1.09M shares
● Sell	104.2K shares
73% Buy Activity Moderate Positive Correlation
Buy Signal Medium Confidence Mar 02, 2026 Analysis Breakdown: Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
May 01, 2026 Sell	Ordinary Shares S-Sale	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	9 000 Value: $300.6K
May 01, 2026 Buy	Employee Stock Option (Right to Buy) M-Exempt	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	5 000 Value: $96.7K
Apr 11, 2026 Buy	Ordinary Shares M-Exempt	Lurker Nancy Director	Director	3 751 Value: $160.4K
Apr 11, 2026 Sell	Ordinary Shares F-InKind	Lurker Nancy Director	Director	901 Value: $30.1K
Apr 11, 2026 Buy	Restricted Stock Unit Award M-Exempt	Lurker Nancy Director	Director	3 751 Value: $160.4K
Apr 06, 2026 Sell	Ordinary Shares S-Sale	Gaffin David Joseph EVP, Clo, Alkermes, Inc.	Officer	2 034 Value: $70.3K
Apr 01, 2026 Buy	Ordinary Shares M-Exempt	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	5 000 Value: $96.7K
Apr 01, 2026 Sell	Ordinary Shares S-Sale	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	9 000 Value: $319.6K
Apr 01, 2026 Buy	Employee Stock Option (Right to Buy) M-Exempt	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	5 000 Value: $96.7K
Mar 03, 2026 Sell	Ordinary Shares S-Sale	Gaffin David Joseph EVP, Clo, Alkermes, Inc.	Officer	2 034 Value: $60.5K
Mar 02, 2026 Buy	Restricted Stock Unit Award A-Award	Reed Joshua SVP, Chief Financial Officer	C-Suite Officer	30 854 Value: $933.3K
Mar 02, 2026 Buy	Restricted Stock Unit Award A-Award	Gaffin David Joseph EVP, Clo, Alkermes, Inc.	Officer	36 364 Value: $1.10M
Mar 02, 2026 Sell	Ordinary Shares S-Sale	Gaffin David Joseph EVP, Clo, Alkermes, Inc.	Officer	2 034 Value: $59.6K
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Gaffin David Joseph EVP, Clo, Alkermes, Inc.	Officer	78 292 Value: $2.37M
Mar 02, 2026 Buy	Restricted Stock Unit Award A-Award	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	38 568 Value: $1.17M
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	83 037 Value: $2.51M
Mar 02, 2026 Sell	Ordinary Shares S-Sale	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	9 000 Value: $267.5K
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) M-Exempt	Hopkinson Craig C. EVP R&d, Chief Medical Officer	Officer	5 000 Value: $96.7K
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Reed Joshua SVP, Chief Financial Officer	C-Suite Officer	66 430 Value: $2.01M
Mar 02, 2026 Buy	Restricted Stock Unit Award A-Award	Pops Richard F Director And CEO, Alkermes Plc	CEO / President	88 843 Value: $2.69M
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Parisi Samuel Joseph Vp, Finance (interim Pao)	Officer	15 033 Value: $454.7K
Mar 02, 2026 Sell	Ordinary Shares S-Sale	Nichols Christian Todd SVP, Chief Commercial Officer	Officer	6 000 Value: $180.0K
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Nichols Christian Todd SVP, Chief Commercial Officer	Officer	66 430 Value: $2.01M
Mar 02, 2026 Buy	Restricted Stock Unit Award A-Award	Nichols Christian Todd SVP, Chief Commercial Officer	Officer	30 854 Value: $933.3K
Mar 02, 2026 Buy	Employee Stock Option (Right to Buy) A-Award	Jackson Blair Curtis EVP, Chief Operating Officer	C-Suite Officer	94 900 Value: $2.87M

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT ALKERMES PLC

Alkermes plc, a biopharmaceutical company, researches, develops, and commercializes pharmaceutical products to address unmet medical needs of patients in various therapeutic areas in the United States, Ireland, and internationally. Its marketed products include ARISTADA, an intramuscular injectable suspension for the treatment of schizophrenia; VIVITROL for the treatment of alcohol and prevention of opioid dependence; RISPERDAL CONSTA for the tre...

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