Alkermes Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:ALKS Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
27 Feb 24	SellUS$28,108	Samuel Parisi	Individual		948	US$29.65
24 Aug 23	SellUS$164,746,480	Sarissa Capital Management LP	Company		5,716,600	US$30.27

Insider Trading Volume

Insider Buying: ALKS insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of ALKS?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	40,796	0.0224%
State or Government	75,793	0.0416%
Individual Insiders	2,452,182	1.35%
Institutions	179,684,089	98.6%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 2.9%.

Top Shareholders

Top 25 shareholders own 78.78% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
17.8%	BlackRock, Inc.	30,022,427	US$728.3m	74.9%	0.01%
12.4%	The Vanguard Group, Inc.	20,955,454	US$508.4m	12.3%	0.01%
9.01%	Wellington Management Group LLP	15,241,470	US$369.8m	29.8%	0.06%
5.53%	State Street Global Advisors, Inc.	9,352,970	US$226.9m	53.5%	0.01%
3.58%	Renaissance Technologies LLC	6,049,317	US$146.8m	-1.09%	0.22%
3.24%	Hardman Johnston Global Advisors LLC	5,476,255	US$132.9m	-2.35%	3.37%
3.14%	Pictet Asset Management Limited	5,304,613	US$128.7m	-3.27%	0.09%
2.36%	Deep Track Capital, LP	4,000,000	US$97.0m	5.26%	3.37%
2.31%	RTW Investments, LP	3,901,523	US$94.7m	339%	1.68%
2.15%	Geode Capital Management, LLC	3,638,089	US$88.3m	4.67%	0.01%
2.11%	PRIMECAP Management Company	3,565,625	US$86.5m	-8.16%	0.06%
1.68%	BNY Mellon Asset Management	2,849,935	US$69.1m	21.1%	0.01%
1.42%	Dimensional Fund Advisors LP	2,403,195	US$58.3m	3.9%	0.01%
1.27%	Charles Schwab Investment Management, Inc.	2,147,122	US$52.1m	0%	0.01%
1.22%	Artisan Partners Limited Partnership	2,066,020	US$50.1m	10%	0.04%
1.18%	Norges Bank Investment Management	2,002,453	US$48.6m	18%	no data
1.15%	Morgan Stanley, Investment Banking and Brokerage Investments	1,938,183	US$47.0m	20.1%	0.01%
1.09%	Northern Trust Global Investments	1,843,831	US$44.7m	9.17%	0.01%
1%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	1,697,865	US$41.2m	5.43%	0.01%
0.98%	First Trust Advisors LP	1,651,040	US$40.1m	11%	0.04%
0.96%	Westfield Capital Management Company, L.P.	1,625,783	US$39.4m	-2.63%	0.22%
0.94%	T. Rowe Price Group, Inc.	1,595,585	US$38.7m	4.94%	no data
0.88%	Jupiter Fund Management Plc	1,486,256	US$36.1m	15.1%	0.09%
0.74%	Jacobs Levy Equity Management Inc	1,256,038	US$30.5m	-14%	0.15%
0.72%	Bank of America Corporation, Asset Management Arm	1,220,324	US$29.6m	310%	0.01%