Repligen Ownership | Who Owns Repligen?


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Repligen Ownership Summary


Repligen is owned by 103.59% institutional investors, 6.40% insiders. Blackrock is the largest institutional shareholder, holding 13.54% of RGEN shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.02% of its assets in Repligen shares.

RGEN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockRepligen103.59%6.40%-9.99%
SectorHealthcare Stocks 487.91%11.08%-398.99%
IndustryMedical Instruments & Supplies Stocks57.81%14.56%27.62%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock7.57M13.54%$954.08M
Price t rowe associates inc /md/7.14M12.74%$1.03B
Blackrock funding, inc. /de6.08M10.82%$756.04M
Vanguard group5.10M9.11%$734.25M
Point72 asset management1.91M3.41%$237.96M
State street1.69M3.02%$243.43M
Champlain investment partners1.46M2.61%$186.28M
Bank of new york mellon1.35M2.41%$194.50M
Sands capital management1.25M2.23%$155.61M
Macquarie group1.10M1.96%$158.32M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
12 west capital management lp241.23K4.53%$30.69M
Brown capital management1.01M3.64%$125.04M
Avidity partners management lp106.50K2.64%$13.25M
Blue whale capital llp287.69K2.34%$35.78M
Conestoga capital advisors956.91K2.05%$127.91M
Ranger investment management222.72K2.03%$28.34M
American capital management329.28K1.70%$40.96M
Roubaix capital26.46K1.58%$3.29M
Lrt capital management18.68K1.38%$2.32M
Champlain investment partners1.46M1.35%$186.28M

Top Buyers

HolderShares% AssetsChange
Point72 asset management1.91M0.47%796.75K
Price t rowe associates inc /md/7.14M0.12%743.82K
Geneva capital management487.53K1.02%343.99K
T. rowe price investment management559.58K0.04%298.73K
Blue whale capital llp287.69K2.34%287.69K

Top Sellers

HolderShares% AssetsChange
Blackrock funding, inc. /de6.08M0.01%-737.26K
William blair investment management---634.99K
Harding loevner lp---340.08K
Wellington management group llp784.07K0.02%-324.58K
Federated hermes5.27K0.00%-316.56K

New Positions

HolderShares% AssetsChangeValue
Blue whale capital llp287.69K2.34%287.69K$35.78M
Schroder investment management group206.40K0.02%206.40K$25.67M
Norges bank166.97K0.00%166.97K$24.03M
Segall bryant & hamill132.14K0.26%132.14K$19.02M
Hawk ridge capital management lp115.40K0.60%115.40K$14.35M

Sold Out

HolderChange
True wealth design-1.00
Claris advisors, llc / mo /-1.00
Financial gravity asset management-1.00
Financial management professionals-1.00
Impact partnership wealth-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2025445-2.20%58,196,3651.11%1030.98%198-13.54%16727.48%
Mar 31, 202519-95.77%3,210,158-94.33%50.06%5-97.49%12-92.41%
Dec 31, 2024436-5.22%56,429,7951.92%1001.03%190-18.10%154-
Sep 30, 2024455-2.36%55,293,886-1.44%980.98%2291.33%153-6.71%
Jun 30, 2024466-6.80%56,099,5600.09%1000.99%226-5.83%164-1.80%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF1.70M3.02%-
Vanguard US Total Market Shares ETF1.68M2.99%1.32K
Vanguard Total Stock Mkt Idx Inv1.68M2.98%-35.41K
Vanguard Small Cap Index1.30M2.30%-8.59K
US Small-Cap Growth II Equity Comp1.23M2.19%-84.49K
T. Rowe Price New Horizons1.23M2.18%-2.07K
Sands Capital Global Growth Equity1.14M2.02%-41.08K
Delaware Ivy Mid Cap Growth A805.66K1.44%-
Vanguard Small Cap Growth Index Inv730.27K1.30%-1.14K
Champlain Mid Cap Fund, LLC699.53K1.24%3.88K

Recent Insider Transactions


DateNameRoleActivityValue
Sep 10, 2025Hunt Anthony-Sell$1.79M
Sep 10, 2025Hunt Anthony-Sell$390.27K
Sep 10, 2025Hunt Anthony-Sell$131.10K
Sep 10, 2025Hunt Anthony-Sell$11.17K
Sep 10, 2025Hunt Anthony-Sell$920.85K

Insider Transactions Trends


DateBuySell
2025 Q316
2025 Q2-5
2025 Q116
2024 Q4-1
2024 Q3-7

RGEN Ownership FAQ


Who Owns Repligen?

Repligen shareholders are primarily institutional investors at 103.59%, followed by 6.40% insiders and -9.99% retail investors. The average institutional ownership in Repligen's industry, Medical Instruments & Supplies Stocks, is 57.81%, which Repligen exceeds.

Who owns the most shares of Repligen?

Repligen’s largest shareholders are Blackrock (7.57M shares, 13.54%), Price t rowe associates inc /md/ (7.14M shares, 12.74%), and Blackrock funding, inc. /de (6.08M shares, 10.82%). Together, they hold 37.10% of Repligen’s total shares outstanding.

Does Blackrock own Repligen?

Yes, BlackRock owns 13.54% of Repligen, totaling 7.57M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 954.08M$. In the last quarter, BlackRock decreased its holdings by -205K shares, a -2.63% change.

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

12 west capital management lp is Repligen’s biggest shareholder by percentage of total assets invested, with 4.53% of its assets in 241.23K Repligen shares, valued at 30.69M$.

Who is the top mutual fund holder of Repligen shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Repligen shares, with 3.02% of its total shares outstanding invested in 1.7M Repligen shares.

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