Repligen Corporation
US ˙ NasdaqGS ˙ US7599161095

SecurityRGEN / Repligen Corporation
InstitutionFranklin Resources Inc
Latest Disclosed Ownership1,193,139 shares
Latest Disclosed Value $ 140,575,621
Franklin Resources Inc reports 8.32% increase in ownership of RGEN / Repligen Corporation

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 1,193,139 shares of Repligen Corporation (US:RGEN) valued at $140,575,637 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,101,447 shares of Repligen Corporation. This represents a change in shares of 8.32% during the quarter. The current value of the position is $145,240,810 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F REPLIGEN COM 759916109 1,193,139 91,692 8.32 140,576 -22.11 0.0056
2026-02-11 2025-12-31 13F REPLIGEN COM 759916109 1,101,447 677,146 159.59 180,483 218.22 0.0443
2025-11-13 2025-09-30 13F REPLIGEN COM 759916109 424,301 41,993 10.98 56,716 19.27 0.0141
2025-08-12 2025-06-30 13F REPLIGEN COM 759916109 382,308 13,097 3.55 47,551 1.22 0.0126
2025-05-13 2025-03-31 13F REPLIGEN COM 759916109 369,211 10,974 3.06 46,978 -8.89 0.0135
2025-02-12 2024-12-31 13F REPLIGEN COM 759916109 358,237 25,832 7.77 51,565 8.44 0.0143
2024-11-27 2024-09-30 13F/A-1 REPLIGEN COM 759916109 332,405 26,668 8.72 47,551 23.38 0.0134
2024-11-12 2024-09-30 13F REPLIGEN COM 759916109 332,405 26,668 47,551 0.0023
2024-08-14 2024-06-30 13F REPLIGEN COM 759916109 305,737 21,754 7.66 38,541 -26.21 0.0118
2024-05-13 2024-03-31 13F REPLIGEN COM 759916109 283,983 -79 -0.03 52,230 2.26 0.0165
2024-02-09 2023-12-31 13F REPLIGEN COM 759916109 284,062 -249,685 -46.78 51,074 -39.82 0.0239
2023-11-13 2023-09-30 13F REPLIGEN COM 759916109 533,747 -173,690 -24.55 84,871 -15.19 0.0431
2023-08-11 2023-06-30 13F REPLIGEN COM 759916109 707,437 -310,174 -30.48 100,074 -41.59 0.0476
2023-05-12 2023-03-31 13F REPLIGEN COM 759916109 1,017,611 -47,923 -4.50 171,325 -5.03 0.0860
2023-02-10 2022-12-31 13F REPLIGEN COM 759916109 1,065,534 -576 -0.05 180,406 -9.56 0.0938
2022-11-14 2022-09-30 13F REPLIGEN COM 759916109 1,066,110 957 0.09 199,480 15.32 0.1087
2022-08-11 2022-06-30 13F REPLIGEN COM 759916109 1,065,153 -3,194 -0.30 172,981 -13.92 0.0858
2022-05-13 2022-03-31 13F REPLIGEN COM 759916109 1,068,347 674 0.06 200,946 -28.93 0.0803
2022-02-11 2021-12-31 13F REPLIGEN COM 759916109 1,067,673 4,335 0.41 282,763 -7.98 0.1020
2021-11-12 2021-09-30 13F REPLIGEN COM 759916109 1,063,338 217,697 25.74 307,294 82.04 0.1157
2021-08-13 2021-06-30 13F REPLIGEN COM 759916109 845,641 72,397 9.36 168,807 12.29 0.0645
2021-05-13 2021-03-31 13F REPLIGEN COM 759916109 773,244 29,453 3.96 150,327 5.47 0.0612
2021-02-10 2020-12-31 13F REPLIGEN COM 759916109 743,791 78,073 11.73 142,533 45.12 0.0603
2020-11-12 2020-09-30 13F REPLIGEN COM 759916109 665,718 54,984 9.00 98,220 18.36 0.0476
2020-08-13 2020-06-30 13F REPLIGEN COM 759916109 610,734 230,857 60.77 82,986 126.29 0.0428
2020-05-13 2020-03-31 13F REPLIGEN COM 759916109 379,877 243,631 178.82 36,673 190.99 0.0245
2020-03-11 2019-12-31 13F/A-1 REPLIGEN COM 759916109 136,246 126,146 1,248.97 12,603 1,526.19 0.0066
2020-02-12 2019-12-31 13F REPLIGEN COM 759916109 136,246 126,146 12,603 1,591.9314
2019-11-14 2019-09-30 13F REPLIGEN COM 759916109 10,100 10,100 775 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.