SEI Investments’s Repligen RGEN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $32.1M | Buy |
272,103
+90,115
| +50% | +$12.6M | 0.03% | 592 |
|
|
2025
Q4 | $29.8M | Sell |
181,988
-33,048
| -15% | -$5.18M | 0.03% | 576 |
|
|
2025
Q3 | $28.7M | Sell |
215,036
-13,439
| -6% | -$1.63M | 0.03% | 566 |
|
|
2025
Q2 | $28.4M | Sell |
228,475
-22,243
| -9% | -$2.83M | 0.03% | 548 |
|
|
2025
Q1 | $31.9M | Buy |
250,718
+31,114
| +14% | +$4.79M | 0.04% | 477 |
|
|
2024
Q4 | $31.6M | Buy |
219,604
+24,662
| +13% | +$3.54M | 0.04% | 463 |
|
|
2024
Q3 | $29M | Buy |
194,942
+7,399
| +4% | +$1.06M | 0.04% | 513 |
|
|
2024
Q2 | $23.6M | Sell |
187,543
-31,171
| -14% | -$4.89M | 0.03% | 540 |
|
|
2024
Q1 | $40.2M | Sell |
218,714
-40,227
| -16% | -$7.66M | 0.06% | 354 |
|
|
2023
Q4 | $46.6M | Buy |
258,941
+7,064
| +3% | +$1.1M | 0.07% | 294 |
|
|
2023
Q3 | $40.1M | Buy |
251,877
+64,774
| +35% | +$10.6M | 0.07% | 296 |
|
|
2023
Q2 | $26.5M | Buy |
187,103
+48,061
| +35% | +$7.71M | 0.05% | 448 |
|
|
2023
Q1 | $23.4M | Buy |
139,042
+356
| +0.3% | +$63.5K | 0.04% | 476 |
|
|
2022
Q4 | $23.5M | Sell |
138,686
-8,984
| -6% | -$1.63M | 0.05% | 406 |
|
|
2022
Q3 | $27.6M | Buy |
147,670
+35,904
| +32% | +$7.57M | 0.06% | 356 |
|
|
2022
Q2 | $18.1M | Buy |
111,766
+51,849
| +87% | +$8.2M | 0.04% | 493 |
|
|
2022
Q1 | $11.3M | Buy |
59,917
+9,352
| +18% | +$1.78M | 0.02% | 716 |
|
|
2021
Q4 | $13.4M | Buy |
50,565
+8,963
| +22% | +$2.41M | 0.03% | 655 |
|
|
2021
Q3 | $11.9M | Buy |
41,602
+13,684
| +49% | +$3.51M | 0.03% | 672 |
|
|
2021
Q2 | $5.57M | Buy |
27,918
+5,807
| +26% | +$1.13M | 0.01% | 1022 |
|
|
2021
Q1 | $4.28M | Buy |
22,111
+9,806
| +80% | +$2.01M | 0.01% | 1100 |
|
|
2020
Q4 | $2.36M | Sell |
12,305
-3,867
| -24% | -$704K | 0.01% | 1310 |
|
|
2020
Q3 | $2.38M | Buy |
16,172
+6,472
| +67% | +$925K | 0.01% | 1205 |
|
|
2020
Q2 | $1.2M | Sell |
9,700
-13,403
| -58% | -$1.58M | ﹤0.01% | 1484 |
|
|
2020
Q1 | $2.23M | Buy |
23,103
+3,531
| +18% | +$341K | 0.01% | 1098 |
|
|
2019
Q4 | $1.81M | Sell |
19,572
-389
| -2% | -$32.7K | 0.01% | 1385 |
|
|
2019
Q3 | $1.54M | Buy |
19,961
+114
| +0.6% | +$9.97K | ﹤0.01% | 1433 |
|
|
2019
Q2 | $1.7M | Buy |
19,847
+16,547
| +501% | +$1.13M | 0.01% | 1383 |
|
|
2019
Q1 | $198K | Sell |
3,300
-45,085
| -93% | -$2.59M | ﹤0.01% | 2291 |
|
|
2018
Q4 | $2.63M | Buy |
48,385
+17,983
| +59% | +$1.05M | 0.01% | 1188 |
|
|
2018
Q3 | $1.69M | Sell |
30,402
-50,335
| -62% | -$2.59M | 0.01% | 1314 |
|
|
2018
Q2 | $3.8M | Sell |
80,737
-3,100
| -4% | -$128K | 0.01% | 1056 |
|
|
2018
Q1 | $3.03M | Sell |
83,837
-83,787
| -50% | -$2.95M | 0.01% | 1049 |
|
|
2017
Q4 | $6.08M | Buy |
167,624
+9,124
| +6% | +$330K | 0.02% | 816 |
|
|
2017
Q3 | $6.07M | Buy |
158,500
+3,500
| +2% | +$147K | 0.02% | 798 |
|
|
2017
Q2 | $6.42M | Buy |
155,000
+28,400
| +22% | +$1.08M | 0.03% | 730 |
|
|
2017
Q1 | $4.46M | Buy |
126,600
+41,600
| +49% | +$1.32M | 0.02% | 849 |
|
|
2016
Q4 | $2.62M | Buy |
85,000
+70
| +0.1% | +$2.17K | 0.01% | 1050 |
|
|
2016
Q3 | $2.56M | Buy |
84,930
+84,045
| +9,497% | +$2.54M | 0.01% | 993 |
|
|
2016
Q2 | $24K | Buy |
885
+525
| +146% | +$13.4K | ﹤0.01% | 2120 |
|
|
2016
Q1 | $10K | Buy |
+360
| New | +$8.81K | ﹤0.01% | 2190 |
|
|
2015
Q4 | – | Sell |
-15,244
| Closed | -$425K | – | 2653 |
|
|
2015
Q3 | $425K | Buy |
+15,244
| New | +$551K | ﹤0.01% | 1349 |
|
Other funds holding RGEN
UCFA
VCM
VPM
MC
SEI Investments's RGEN Position: Q1 2026 in Review
SEI Investments increased its Repligen (RGEN) stake by 50% in Q1 2026, buying an estimated $12.6M and bringing the position to 272,103 shares worth $32.1M. The position accounts for 0.03% of the portfolio, ranked #592.
SEI Investments first reported a position in RGEN in Q3 2015 and has held it in 42 quarters since. The position peaked at $46.6M in Q4 2023. 441 funds tracked by Wall St. Rank hold RGEN as of Q1 2026.
- SEI Investments held 272,103 shares of Repligen worth $32.1M as of Q1 2026.
- SEI Investments bought 90,115 Repligen shares in Q1 2026, an estimated $12.6M.
- Repligen made up 0.03% of SEI Investments's portfolio in Q1 2026, its #592 holding.
- SEI Investments first reported a position in Repligen in Q3 2015 and has held it in 42 quarters since.
- SEI Investments's Repligen position peaked at $46.6M in Q4 2023.
- 441 funds tracked by Wall St. Rank held Repligen as of Q1 2026.
Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.