Repligen Ownership | Who Owns Repligen?

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Repligen Ownership Summary

Repligen is owned by 5.72% institutional investors, 6.44% insiders, and 87.84% retail investors. Blackrock is the largest institutional shareholder, holding 13.54% of RGEN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.04% of its assets in Repligen shares.

RGEN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Repligen	5.72%	6.44%	87.84%
Sector	Healthcare Stocks	279.15%	10.63%	-189.78%
Industry	Medical Instruments & Supplies Stocks	43.58%	14.35%	42.08%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	7.57M	13.54%	$954.08M
Price t rowe associates inc /md/	7.14M	12.74%	$1.03B
Blackrock funding, inc. /de	6.86M	12.24%	$987.03M
Vanguard group	5.10M	9.11%	$734.25M
State street	1.69M	3.02%	$243.43M
Champlain investment partners	1.46M	2.61%	$186.28M
Sands capital management	1.36M	2.44%	$196.37M
Bank of new york mellon	1.35M	2.41%	$194.50M
Macquarie group	1.10M	1.96%	$158.32M
Impax asset management group	1.05M	1.88%	$150.27M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
12 west capital management lp	241.23K	4.53%	$30.69M
Brown capital management	954.94K	3.19%	$137.45M
Ranger investment management	222.72K	2.03%	$28.34M
American capital management	380.98K	1.97%	$48.48M
Conestoga capital advisors	947.58K	1.81%	$136.39M
Champlain investment partners	1.46M	1.35%	$186.28M
Pier capital	65.11K	1.34%	$9.37M
London & capital asset management	105.52K	1.29%	$15.19M
Lrt capital management	14.79K	1.29%	$1.88M
First light asset management	87.85K	1.28%	$11.18M

Top Buyers

Holder	Shares	% Assets	Change
Price t rowe associates inc /md/	7.14M	0.12%	743.82K
Point72 asset management	918.62K	0.29%	594.19K
Groupama asset managment	403.93K	0.02%	400.68K
Alyeska investment group	371.18K	0.20%	371.18K
Raymond james financial	364.68K	0.02%	364.68K

Top Sellers

Holder	Shares	% Assets	Change
William blair investment management	-	-	-634.99K
Harding loevner lp	-	-	-340.08K
Wellington management group llp	784.07K	0.02%	-324.58K
Federated hermes	5.27K	0.00%	-316.56K
Westfield capital management co lp	-	-	-255.76K

New Positions

Holder	Shares	% Assets	Change	Value
Alyeska investment group	371.18K	0.20%	371.18K	$53.43M
Raymond james financial	364.68K	0.02%	364.68K	$52.49M
Holocene advisors, lp	311.10K	0.14%	311.10K	$44.78M
Norges bank	166.97K	0.00%	166.97K	$24.03M
Segall bryant & hamill	132.14K	0.26%	132.14K	$19.02M

Sold Out

Holder	Change
Tfc financial management	-1.00
Financial management professionals	-1.00
Financial gravity asset management	-1.00
Claris advisors, llc / mo /	-1.00
Impact partnership wealth	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	19	-95.77%	3,210,158	-94.33%	5	0.06%	5	-97.49%	12	-92.41%
Dec 31, 2024	436	-5.22%	56,429,795	1.92%	100	1.03%	190	-18.10%	154	-
Sep 30, 2024	455	-2.36%	55,293,886	-1.44%	98	0.98%	229	1.33%	153	-6.71%
Jun 30, 2024	466	-6.80%	56,099,560	0.09%	100	0.99%	226	-5.83%	164	-1.80%
Mar 31, 2024	500	4.17%	56,049,579	-3.69%	100	0.92%	240	1.69%	167	7.05%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	1.71M	3.04%	1.14K
iShares Core S&P Mid-Cap ETF	1.70M	3.03%	896.00
Vanguard US Total Market Shares ETF	1.68M	2.99%	1.32K
Vanguard Small Cap Index	1.34M	2.39%	6.34K
US Small-Cap Growth II Equity Comp	1.23M	2.19%	-84.49K
T. Rowe Price New Horizons	1.23M	2.19%	-6.13K
Sands Capital Global Growth Equity	1.18M	2.10%	-76.74K
Vanguard Institutional Extnd Mkt Idx Tr	811.31K	1.44%	5.52K
Delaware Ivy Mid Cap Growth A	805.66K	1.44%	-
Vanguard Small Cap Growth Index Inv	739.86K	1.32%	-4.07K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 15, 2025	Hunt Anthony	-	Sell	$812.31K
May 15, 2025	Hunt Anthony	-	Sell	$33.55K
May 15, 2025	Hunt Anthony	-	Sell	$250.59K
May 15, 2025	Hunt Anthony	-	Sell	$2.17M
May 15, 2025	Hunt Anthony	-	Sell	$889.00

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	-	5
2025 Q1	1	6
2024 Q4	-	1
2024 Q3	-	7
2024 Q2	4	6

RGEN Ownership FAQ

Who Owns Repligen?

Repligen shareholders are primarily institutional investors at 5.72%, followed by 6.44% insiders and 87.84% retail investors. The average institutional ownership in Repligen's industry, Medical Instruments & Supplies Stocks, is 43.58%, which Repligen falls below.

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 (6.86M shares, 12.24%). Together, they hold 38.53% 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?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Repligen shares, with 3.04% of its total shares outstanding invested in 1.71M Repligen shares.

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