← All stocks

REPLIGEN CORP

RGEN Net selling
CIK 0000730272 #924 in the set updated 17 Sep 2026
Bought (120 mo)
$1.19M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$171.78M
$9.07M on a plan · $103.97M straight out of an exercise
Sold at will
$58.74M
170 of 341 sales
Net
−$170.59M
−$57.56M against sales at will

By person

22 insiders · 364 transactions
9.3×

Olivier Loeillot holds 9.3 times base salary in stock. $8.02M of shares against $860.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Olivier Loeillot last reported holding, valued at $165.90, the price Common Stock was last bought or sold at on the open market here, on 4 Sep 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Hunt Anthony
Director
$248.16K (1)
$94.76M (132) scheduled
−$94.51M
89,062
0.1578%
$14.78M
−18.7%
EDDLEMAN ROY T
10% owner
$18.28M (10)
−$18.28M
783,985
1.39%
$130.06M
−69.8%
DAWES KAREN A
Director
$17.07M (78)
−$17.07M
92,816
0.1645%
$15.40M
+4.1%
Snodgres Jon
Chief Financial Officer
$11.32M (39) scheduled
−$11.32M
37,381
0.0662%
$6.20M
+114.2%
KURIYEL RALF
Senior VP, R&D
$10.63M (30) scheduled
−$10.63M
20,062
0.0355%
$3.33M
+236.5%
Cox John
Director
$4.07M (7) scheduled
−$4.07M
923
0.0016%
$153.13K
−74.5%
RYAN THOMAS F JR
Director
$3.46M (17) scheduled
−$3.46M
1,457
0.0026%
$241.72K
−82.9%
Loeillot Olivier
Chief Executive Officer
$3.21M (4) scheduled
−$3.21M
48,369
0.0857%
$8.02M
BARTHELEMY NICOLAS
Director
$150.54K (1)
$3.14M (8) scheduled
−$2.99M
5,436
0.0096%
$901.83K
+243.6%
Gebski Christine
See Remarks
$2.69M (5)
−$2.69M
27,419
0.0486%
$4.55M
−28.9%
Bylund James
Chief Operating Officer
$1.75M (4) scheduled
−$1.75M
25,423
0.0450%
$4.22M
+280.4%
Benjamin Howard
VP Business Development
$872.79K (3) scheduled
−$872.79K
33,908
0.0601%
$5.63M
+18.5%
Madaus Martin D
Director
$641.87K (6)
+$641.87K
8,381
0.0149%
$1.39M
COOPER GLENN L MD
Director
$334.71K (2)
−$334.71K
35,709
0.0633%
$5.92M
−3.7%
Garland Jason K
CFO
$185.79K (2) scheduled
−$185.79K
18,829
0.0334%
$3.12M
EGLINTON MANNER CARRIE
Director
$109.39K (1)
+$109.39K
5,461
0.0097%
$905.98K
Pax Margaret
Director
$37.67K (1)
+$37.67K
3,011
0.0053%
$499.52K
MUIR GLENN P
Director
40,051
0.0710%
$6.64M
+2,172%
Douglass Brian Robb
CHIEF PRODUCT OFFICER
7,985
0.0141%
$1.32M
+27.7%
Hughes Violetta
CHIEF ACCOUNTING OFFICER
6,331
0.0112%
$1.05M
Mhatre Rohin
Director
5,014
0.0089%
$831.82K
Konstantinov Konstantin
Director
3,889
0.0069%
$645.19K
Insider
Date
Role
Action
Shares
Price
Amount
Madaus Martin D
8 Aug 2025
Director
Buy indirect
1,800
$112.13
$201.83K
Pax Margaret
17 Mar 2025
Director
Buy
250
$150.69
$37.67K
Hunt Anthony
14 Jun 2024
Chief Executive Officer
Buy
2,000
$124.08
$248.16K
BARTHELEMY NICOLAS
14 Jun 2024
Director
Buy
1,200
$125.45
$150.54K
Madaus Martin D
14 Jun 2024
Director
Buy
700
$125.46
$87.82K
Madaus Martin D
14 Jun 2024
Director
Buy
915
$124.54
$113.95K
Madaus Martin D
8 May 2023
Director
Buy
500
$156.18
$78.09K
Madaus Martin D
5 May 2023
Director
Buy
500
$159.19
$79.60K
Madaus Martin D
4 May 2023
Director
Buy
500
$161.15
$80.58K
EGLINTON MANNER CARRIE
16 Mar 2022
Director
Buy
625
$175.02
$109.39K
Showing 250 of 364 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 348
Amendments (4/A) skipped 15
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 16
Sales straight out of an exercise 155
Sales at will 170
Transactions with no price 0
Shares from compensation/vesting 3,067,008
Sales filed before the plan box existed 166
History held since 16 Sep 2016