Alkermes Ownership | Who Owns Alkermes?

Overview Forecast RevenueFinancials Chart Transcripts

Alkermes Ownership Summary

Alkermes is owned by 102.42% institutional investors, 1.49% insiders. Blackrock is the largest institutional shareholder, holding 17.33% of ALKS shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.96% of its assets in Alkermes shares.

ALKS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Alkermes	102.42%	1.49%	-3.91%
Sector	Healthcare Stocks	218.58%	11.00%	-129.58%
Industry	Biotech Stocks	296.15%	10.91%	-207.06%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	29.11M	17.33%	$701.49M
Blackrock funding, inc. /de	27.86M	16.89%	$796.96M
Vanguard group	18.50M	11.32%	$531.95M
Price t rowe associates inc /md/	12.26M	7.50%	$352.50M
State street	8.81M	5.40%	$253.52M
Wellington management group llp	7.01M	4.29%	$201.68M
Baker bros. advisors lp	6.41M	3.89%	$183.41M
Renaissance	5.48M	3.35%	$157.57M
Rtw investments, lp	4.68M	2.84%	$133.96M
Geode capital management	3.82M	2.34%	$109.85M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Commodore capital lp	2.30M	4.85%	$66.15M
Affinity asset advisors	1.00M	3.91%	$28.61M
Stempoint capital lp	351.12K	3.22%	$10.04M
Krensavage asset management	207.82K	3.15%	$5.95M
Healthinvest partners ab	227.22K	2.78%	$6.50M
Bioimpact capital	549.26K	2.72%	$15.71M
Rtw investments, lp	4.68M	1.91%	$133.96M
Baker bros. advisors lp	6.41M	1.78%	$183.41M
Avoro capital advisors	2.90M	1.45%	$82.97M
Birchview capital, lp	50.00K	1.42%	$1.43M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	1.97M	0.01%	1.97M
Baker bros. advisors lp	6.41M	1.78%	1.93M
Nuveen asset management	1.66M	0.01%	867.49K
Holocene advisors, lp	2.85M	0.20%	679.17K
Jpmorgan chase	889.47K	0.00%	529.96K

Top Sellers

Holder	Shares	% Assets	Change
Wellington management group llp	7.01M	0.04%	-5.65M
Deep track capital, lp	-	-	-3.50M
Hardman johnston global advisors	-	-	-2.67M
Rtw investments, lp	4.68M	1.91%	-2.20M
Camber capital management lp	-	-	-1.50M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.97M	0.01%	1.97M	$56.68M
Glenmede investment management, lp	483.36K	0.07%	483.36K	$13.83M
Mesirow institutional investment management	376.87K	0.83%	376.87K	$10.84M
Peregrine capital management	264.62K	0.23%	264.62K	$7.57M
C worldwide group	250.00K	0.09%	250.00K	$7.19M

Sold Out

Holder	Change
Harbor investment advisory	-1.00
Financial gravity asset management	-1.00
Activest wealth management	-1.00
Mather group, llc.	-2.00
Financial synergies wealth advisors	-9.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	355	-6.58%	168,942,978	-0.75%	102	0.94%	194	3.19%	118	-10.61%
Mar 31, 2025	377	7.41%	169,214,033	1.17%	103	0.99%	185	6.94%	132	7.32%
Dec 31, 2024	341	-	166,201,187	-5.94%	101	0.87%	167	-3.47%	121	2.54%
Sep 30, 2024	339	3.99%	176,619,359	-1.51%	108	0.95%	171	-2.29%	117	7.34%
Jun 30, 2024	320	-6.16%	179,232,053	3.05%	106	0.97%	172	-	109	-9.17%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Small-Cap ETF	9.85M	5.96%	1.42K
Vanguard US Total Market Shares ETF	5.16M	3.17%	-174.71K
Vanguard Total Stock Mkt Idx Inv	5.20M	3.15%	-137.84K
Vanguard Small Cap Index	4.00M	2.42%	-29.47K
T. Rowe Price Mid-Cap Value	3.83M	2.32%	-4.87K
T. Rowe Price US Mid-Cap Value Equity	3.83M	2.32%	-1.15M
iShares Russell 2000 ETF	3.82M	2.32%	-72.66K
Pacer US Small Cap Cash Cows 100 ETF	2.98M	1.84%	-21.71K
T. Rowe Price U.S. Mid-Cap Val Eq Tr-Z	2.64M	1.62%	-69.71K
Avantis US Small Cap Value ETF	2.53M	1.53%	6.70K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 10, 2025	Nichols Christian Todd	SVP, Chief Commercial Officer	Sell	$103.65K
Jun 09, 2025	Nichols Christian Todd	SVP, Chief Commercial Officer	Sell	$106.49K
Feb 28, 2025	Parisi Samuel Joseph	VP, Finance (Interim PAO)	Sell	$65.89K
Feb 25, 2025	Parisi Samuel Joseph	VP, Finance (Interim PAO)	Sell	$131.98K
Feb 20, 2025	Parisi Samuel Joseph	VP, Finance (Interim PAO)	Sell	$47.36K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	-
2025 Q2	-	2
2025 Q1	-	8
2024 Q4	-	7
2024 Q3	-	-

ALKS Ownership FAQ

Who Owns Alkermes?

Alkermes shareholders are primarily institutional investors at 102.42%, followed by 1.49% insiders and -3.91% retail investors. The average institutional ownership in Alkermes's industry, Biotech Stocks , is 296.15%, which Alkermes falls below.

Who owns the most shares of Alkermes?

Alkermes’s largest shareholders are Blackrock (29.11M shares, 17.33%), Blackrock funding, inc. /de (27.86M shares, 16.89%), and Vanguard group (18.5M shares, 11.32%). Together, they hold 45.54% of Alkermes’s total shares outstanding.

Does Blackrock own Alkermes?

Yes, BlackRock owns 17.33% of Alkermes, totaling 29.11M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 701.49M$. In the last quarter, BlackRock decreased its holdings by -60.933K shares, a -0.21% change.

Who is Alkermes’s biggest shareholder by percentage of total assets invested?

Commodore capital lp is Alkermes’s biggest shareholder by percentage of total assets invested, with 4.85% of its assets in 2.3M Alkermes shares, valued at 66.15M$.

Who is the top mutual fund holder of Alkermes shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Alkermes shares, with 5.96% of its total shares outstanding invested in 9.85M Alkermes shares.

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