RGEN · NASDAQ · Medical - Instruments & Supplies

Repligen

Supplies filtration, chromatography, analytics, and protein technologies for biologics manufacturers and CDMOs.

$181.00
After-hours close+4.79 (+2.72%)
At close$176.21(−3.20%)

Breakdown13F · Form 4

Institutions 132.36%Insiders 0.68%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 56.44M · Float 53.37M · 94.6% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.5.38M9.54%13FAug 7, 2026
FMR LLC3.33M5.89%13FAug 13, 2026
Vanguard Capital Management2.83M5.00%13GJul 31, 2026
United Capital Financial Advisers, LLC2.79M4.94%13FAug 17, 2026
Vanguard Portfolio Management LLC2.31M4.10%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

494 holders · 74.70M shares · 101 new positions · 279 increased · 139 reduced · 62 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.5.38M9.54%−608.1KAug 7, 2026
FMR LLC3.33M5.89%+439.9KAug 13, 2026
United Capital Financial Advisers, LLC2.79M4.94%+16.7KAug 17, 2026
Vanguard Capital Management LLC2.41M4.27%+14.7KAug 13, 2026
Vanguard Portfolio Management LLC2.31M4.10%+7.7KAug 13, 2026
Maverick Capital Ltd1.98M3.52%+465.7KAug 14, 2026
State Street Corp1.80M3.19%+23.2KAug 7, 2026
Price T Rowe Associates Inc /MD/1.75M3.10%−3.13MAug 14, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
BlackRock, Inc.9.30%5.20M13GApr 24, 2025
T. Rowe Price Associates, Inc.8.20%4.60M13GFeb 17, 2026
FMR LLC5.10%2.89M13GFeb 5, 2026
Vanguard Capital Management5.00%2.83M13GJul 31, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Karen A. Dawesdirector92.8K0.16%May 18, 2026
Anthony Huntdirector89.1K0.16%Mar 3, 2026
Olivier Loeillotdirector, officer: Chief Executive Officer54.2K0.10%Aug 21, 2026
Glenn P. Muirdirector40.1K0.07%May 18, 2026
James Bylundofficer: Chief Operating Officer25.4K0.05%Mar 23, 2026
Ralf Kuriyelofficer: Senior VP, R&D20.1K0.04%Mar 23, 2026
Jason K. Garlandofficer: CFO18.8K0.03%Jul 17, 2026
Martin D. Madausdirector8.4K0.01%May 18, 2026
Brian Robb Douglassofficer: CHIEF PRODUCT OFFICER8.0K0.01%May 8, 2026
Manner Carrie Eglintondirector5.5K0.01%May 18, 2026

4 ten-percent owners hold 3.15M shares by Form 4, outside the officers-and-directors figure above · 21 people have not refiled in the last 18 months (1.83M shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 20, 2026
Olivier Loeillotdirector, officer: Chief Executive Officer
Sale5,426$180.0054,246
Jul 16, 2026
Jason K. Garlandofficer: CFO
Sale530$150.0018,829
Jun 25, 2026
Jason K. Garlandofficer: CFO
Sale733$145.0019,359
Apr 21, 2026
Olivier Loeillotdirector, officer: Chief Executive Officer
Sale3,832$140.0054,246
Dec 17, 2025
Karen A. Dawesdirector
Sale275$161.0091,821
Nov 25, 2025
Olivier Loeillotdirector, officer: Chief Executive Officer
Sale7,041$170.0035,898
Nov 18, 2025
James Bylundofficer: Chief Operating Officer
Sale2,191$151.2121,520
Nov 13, 2025
Anthony Huntdirector
Sale · 7 lots20,000$154.6180,743
Nov 12, 2025
Anthony Huntdirector
Sale · 5 lots25,000$156.88100,743
Sep 10, 2025
Anthony Huntdirector
Sale · 6 lots29,111$120.52100,743

CongressHouse and Senate disclosures

Not reported.