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American Capital Management’s Repligen RGEN Stock Holding History

American Capital Management’s Portfolio RGEN Stock Details RGEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$42.1M Buy
357,720
+22,605
+7% +$3.16M 2.26% 18
2025
Q4 		$54.9M Sell
335,115
-1,747
-0.5% -$274K 2.42% 16
2025
Q3 		$45M Buy
336,862
+7,581
+2% +$921K 1.79% 22
2025
Q2 		$41M Sell
329,281
-51,701
-14% -$6.58M 1.7% 25
2025
Q1 		$48.5M Sell
380,982
-2,547
-0.7% -$392K 1.97% 23
2024
Q4 		$55.2M Buy
383,529
+4,495
+1% +$645K 2.06% 23
2024
Q3 		$56.4M Buy
379,034
+42,335
+13% +$6.07M 1.84% 24
2024
Q2 		$42.4M Buy
336,699
+109,389
+48% +$17.1M 1.42% 26
2024
Q1 		$41.8M Sell
227,310
-5,242
-2% -$998K 1.34% 28
2023
Q4 		$41.8M Buy
232,552
+4,253
+2% +$662K 1.43% 26
2023
Q3 		$36.3M Sell
228,299
-102
-0% -$16.7K 1.4% 24
2023
Q2 		$32.3M Buy
228,401
+55,904
+32% +$8.96M 1.12% 31
2023
Q1 		$29M Buy
172,497
+31,746
+23% +$5.66M 1.02% 31
2022
Q4 		$23.8M Buy
140,751
+17,827
+15% +$3.23M 0.93% 31
2022
Q3 		$23M Sell
122,924
-4,763
-4% -$1M 0.91% 29
2022
Q2 		$20.7M Buy
127,687
+12,873
+11% +$2.04M 0.78% 36
2022
Q1 		$21.6M Buy
114,814
+3,662
+3% +$696K 0.64% 39
2021
Q4 		$29.4M Sell
111,152
-858
-0.8% -$231K 0.76% 37
2021
Q3 		$32.4M Sell
112,010
-1,819
-2% -$467K 0.87% 35
2021
Q2 		$22.7M Buy
113,829
+930
+0.8% +$180K 0.64% 37
2021
Q1 		$21.9M Buy
112,899
+3,281
+3% +$673K 0.66% 38
2020
Q4 		$21M Buy
109,618
+616
+0.6% +$112K 0.63% 36
2020
Q3 		$16.1M Buy
109,002
+423
+0.4% +$60.5K 0.59% 38
2020
Q2 		$13.4M Sell
108,579
-2,210
-2% -$260K 0.49% 39
2020
Q1 		$10.7M Buy
110,789
+37,774
+52% +$3.65M 0.52% 39
2019
Q4 		$6.75M Buy
73,015
+350
+0.5% +$29.4K 0.28% 48
2019
Q3 		$5.57M Buy
72,665
+155
+0.2% +$13.6K 0.25% 50
2019
Q2 		$6.23M Sell
72,510
-830
-1% -$56.6K 0.27% 50
2019
Q1 		$4.33M Buy
73,340
+2,665
+4% +$153K 0.2% 50
2018
Q4 		$3.73M Buy
70,675
+960
+1% +$56.3K 0.2% 51
2018
Q3 		$3.87M Buy
+69,715
New +$3.59M 0.17% 58

Other funds holding RGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
UCFA
United Capital Financial Advisors Irving, Texas $16.3B AUM 16.34% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $8.67B AUM 48.76% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

American Capital Management's RGEN Position: Q1 2026 in Review

American Capital Management increased its Repligen (RGEN) stake by 6.7% in Q1 2026, buying an estimated $3.16M and bringing the position to 357,720 shares worth $42.1M. The position accounts for 2.26% of the portfolio, ranked #18.

American Capital Management first reported a position in RGEN in Q3 2018 and has held it in 31 quarters since. The position peaked at $56.4M in Q3 2024. 443 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.

  • American Capital Management held 357,720 shares of Repligen worth $42.1M as of Q1 2026.
  • American Capital Management bought 22,605 Repligen shares in Q1 2026, an estimated $3.16M.
  • Repligen made up 2.26% of American Capital Management's portfolio in Q1 2026, its #18 holding.
  • American Capital Management first reported a position in Repligen in Q3 2018 and has held it in 31 quarters since.
  • American Capital Management's Repligen position peaked at $56.4M in Q3 2024.
  • 443 funds tracked by Wall St. Rank held Repligen as of Q1 2026.

Based on American Capital Management's 13F filing for Q1 2026, filed 15 May 2026.