John Overdeck’s Repligen RGEN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $1.35M | Buy |
+9,901
| New | +$1.22M | ﹤0.01% | 3372 |
|
|
2026
Q1 | – | Sell |
-8,400
| Closed | -$1.38M | – | 4871 |
|
|
2025
Q4 | $1.38M | Sell |
8,400
-86,461
| -91% | -$13.5M | ﹤0.01% | 2717 |
|
|
2025
Q3 | $12.7M | Sell |
94,861
-218,282
| -70% | -$26.5M | 0.02% | 833 |
|
|
2025
Q2 | $38.9M | Buy |
313,143
+87,837
| +39% | +$11.2M | 0.07% | 348 |
|
|
2025
Q1 | $28.7M | Sell |
225,306
-133,733
| -37% | -$20.6M | 0.06% | 371 |
|
|
2024
Q4 | $51.7M | Sell |
359,039
-77,124
| -18% | -$11.1M | 0.11% | 220 |
|
|
2024
Q3 | $64.9M | Buy |
436,163
+223,067
| +105% | +$32M | 0.14% | 175 |
|
|
2024
Q2 | $26.9M | Buy |
213,096
+210,796
| +9,165% | +$33M | 0.06% | 362 |
|
|
2024
Q1 | $423K | Buy |
2,300
+600
| +35% | +$114K | ﹤0.01% | 2410 |
|
|
2023
Q4 | $306K | Sell |
1,700
-11,377
| -87% | -$1.77M | ﹤0.01% | 2690 |
|
|
2023
Q3 | $2.08M | Sell |
13,077
-44,240
| -77% | -$7.23M | 0.01% | 1362 |
|
|
2023
Q2 | $8.11M | Buy |
+57,317
| New | +$9.19M | 0.02% | 722 |
|
|
2022
Q2 | – | Sell |
-3,256
| Closed | -$612K | – | 2866 |
|
|
2022
Q1 | $612K | Sell |
3,256
-39,652
| -92% | -$7.53M | ﹤0.01% | 1923 |
|
|
2021
Q4 | $11.4M | Buy |
+42,908
| New | +$11.6M | 0.02% | 720 |
|
|
2021
Q2 | – | Sell |
-29,766
| Closed | -$5.77M | – | 4480 |
|
|
2021
Q1 | $5.79M | Buy |
29,766
+13,045
| +78% | +$2.67M | 0.02% | 960 |
|
|
2020
Q4 | $3.2M | Sell |
16,721
-17,160
| -51% | -$3.12M | 0.01% | 1192 |
|
|
2020
Q3 | $5M | Buy |
+33,881
| New | +$4.84M | 0.02% | 794 |
|
|
2019
Q4 | – | Sell |
-119,496
| Closed | -$9.16M | – | 3934 |
|
|
2019
Q3 | $9.16M | Buy |
+119,496
| New | +$10.5M | 0.03% | 580 |
|
|
2019
Q1 | – | Sell |
-80,189
| Closed | -$4.23M | – | 3394 |
|
|
2018
Q4 | $4.23M | Buy |
+80,189
| New | +$4.7M | 0.02% | 881 |
|
|
2017
Q3 | – | Sell |
-26,175
| Closed | -$1.08M | – | 3116 |
|
|
2017
Q2 | $1.08M | Buy |
+26,175
| New | +$995K | ﹤0.01% | 1849 |
|
|
2017
Q1 | – | Sell |
-7,428
| Closed | -$229K | – | 3253 |
|
|
2016
Q4 | $229K | Sell |
7,428
-33,931
| -82% | -$1.05M | ﹤0.01% | 2873 |
|
|
2016
Q3 | $1.25M | Sell |
41,359
-98,207
| -70% | -$2.96M | ﹤0.01% | 1802 |
|
|
2016
Q2 | $3.82M | Buy |
139,566
+13,833
| +11% | +$354K | 0.02% | 888 |
|
|
2016
Q1 | $3.37M | Buy |
125,733
+71,230
| +131% | +$1.74M | 0.02% | 892 |
|
|
2015
Q4 | $1.54M | Buy |
54,503
+23,525
| +76% | +$678K | 0.01% | 1226 |
|
|
2015
Q3 | $863K | Sell |
30,978
-2,030
| -6% | -$73.4K | ﹤0.01% | 1272 |
|
|
2015
Q2 | $1.36M | Buy |
+33,008
| New | +$1.21M | 0.01% | 1451 |
|
|
2014
Q4 | – | Sell |
-11,988
| Closed | -$239K | – | 2354 |
|
|
2014
Q3 | $239K | Sell |
11,988
-20,372
| -63% | -$429K | ﹤0.01% | 1549 |
|
|
2014
Q2 | $737K | Buy |
+32,360
| New | +$576K | ﹤0.01% | 1446 |
|
|
2014
Q1 | – | Sell |
-181,139
| Closed | -$2.47M | – | 2208 |
|
|
2013
Q4 | $2.47M | Sell |
181,139
-26,661
| -13% | -$318K | 0.01% | 913 |
|
|
2013
Q3 | $2.31M | Buy |
207,800
+41,222
| +25% | +$410K | 0.01% | 745 |
|
|
2013
Q2 | $1.37M | Buy |
+166,578
| New | +$1.4M | 0.01% | 1026 |
|
Other funds holding RGEN
UCFA
MC
WA
John Overdeck's RGEN Position: Q2 2026 in Review
John Overdeck opened a new position in Repligen (RGEN) in Q2 2026: 9,901 shares worth $1.35M. The stake represents ﹤0.01% of the portfolio and ranks #3372 among its holdings. This is a return to the name: John Overdeck previously reported a position in RGEN as recently as Q4 2025.
John Overdeck first reported a position in RGEN in Q2 2013 and has held it in 32 quarters since. The position peaked at $64.9M in Q3 2024. 476 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.
- John Overdeck held 9,901 shares of Repligen worth $1.35M as of Q2 2026.
- Repligen was a new John Overdeck position in Q2 2026.
- Repligen made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3372 holding.
- John Overdeck first reported a position in Repligen in Q2 2013 and has held it in 32 quarters since.
- John Overdeck's Repligen position peaked at $64.9M in Q3 2024.
- 476 funds tracked by Wall St. Rank held Repligen as of Q2 2026.
Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.