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United States Healthcare Equipment & Supplies

Repligen Corp (RGEN)

Track

Recent insider trading activity at Repligen Corp shows a net sell-off of approximately $1.07 million over the last 90 days, primarily driven by executive sales. The company's stock has experienced a slight decline of 3.1% over the same period. Notably, the CEO made significant sell transactions.
Stock chart
Ticker: RGEN Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Loeillot Olivier
Chief Executive Officer
2 sales — total 1,072,960 USD
Sale 21 Apr 2026
Value US$638,324.09 | Price 436.19 | Shares 97,460
Proposed sale 21 Apr 2026
Value US$4,198,002.08 | Price 383.91 | Shares 23,240
Sale 17 Dec 2025
Value US$4,302,816.96 | Price 202.36 | Shares 12,975
Proposed sale 17 Dec 2025
Value US$4,484,469.48 | Price 77.79 | Shares 90,735
Sale 25 Nov 2025
Value US$1,196,970.00 | Price 170.00 | Shares 7,041
Proposed sale 25 Nov 2025
Value US$1,196,970.00 | Price 170.00 | Shares 7,041
Sale 18 Nov 2025
Value US$331,301.11 | Price 151.21 | Shares 2,191
Proposed sale 18 Nov 2025
Value US$331,303.71 | Price 151.21 | Shares 2,191
Sale 13 Nov 2025
Value US$307,307.16 | Price 157.11 | Shares 1,956
Sale 13 Nov 2025
Value US$896,234.14 | Price 156.22 | Shares 5,737
Sale 13 Nov 2025
Value US$466,350.00 | Price 155.45 | Shares 3,000
Sale 13 Nov 2025
Value US$385,800.00 | Price 154.32 | Shares 2,500
Sale 13 Nov 2025
Value US$447,628.22 | Price 153.14 | Shares 2,923
Sale 13 Nov 2025
Value US$319,557.00 | Price 152.17 | Shares 2,100
Sale 13 Nov 2025
Value US$269,401.84 | Price 151.01 | Shares 1,784
Proposed sale 13 Nov 2025
Value US$3,092,327.11 | Price 154.62 | Shares 20,000
Sale 12 Nov 2025
Value US$73,548.64 | Price 158.51 | Shares 464
Sale 12 Nov 2025
Value US$1,753,278.96 | Price 158.01 | Shares 11,096
Sale 12 Nov 2025
Value US$776,827.35 | Price 156.65 | Shares 4,959
Sale 12 Nov 2025
Value US$738,729.00 | Price 155.85 | Shares 4,740
Sale 12 Nov 2025
Value US$579,555.72 | Price 154.92 | Shares 3,741
Proposed sale 12 Nov 2025
Value US$3,921,981.07 | Price 156.88 | Shares 25,000
Sale 10 Sep 2025
Value US$266,339.17 | Price 122.23 | Shares 2,179
Sale 10 Sep 2025
Value US$920,849.28 | Price 121.42 | Shares 7,584
Sale 10 Sep 2025
Value US$1,788,667.58 | Price 120.19 | Shares 14,882
Sale 10 Sep 2025
Value US$390,265.68 | Price 119.64 | Shares 3,262
Sale 10 Sep 2025
Value US$131,098.56 | Price 118.32 | Shares 1,108
Sale 10 Sep 2025
Value US$11,168.64 | Price 116.34 | Shares 96
Proposed sale 10 Sep 2025
Value US$3,508,378.25 | Price 120.52 | Shares 29,111
Buy 8 Aug 2025
Value US$201,830.40 | Price 112.13 | Shares 1,800
Sale 15 May 2025
Value US$889.00 | Price 127.00 | Shares 7
Sale 15 May 2025
Value US$33,553.60 | Price 125.20 | Shares 268
Sale 15 May 2025
Value US$812,313.22 | Price 124.34 | Shares 6,533
Sale 15 May 2025
Value US$2,174,337.72 | Price 123.57 | Shares 17,596
Sale 15 May 2025
Value US$250,594.38 | Price 122.66 | Shares 2,043
Proposed sale 15 May 2025
Value US$3,394,207.98 | Price 128.34 | Shares 26,447
Sale 17 Mar 2025
Value US$350,897.10 | Price 153.70 | Shares 2,283
Sale 17 Mar 2025
Value US$2,386,895.58 | Price 152.82 | Shares 15,619
Sale 17 Mar 2025
Value US$938,504.96 | Price 151.96 | Shares 6,176
Sale 17 Mar 2025
Value US$380,444.62 | Price 151.09 | Shares 2,518
Sale 17 Mar 2025
Value US$15,038.00 | Price 150.38 | Shares 100
Sale 17 Mar 2025
Value US$8,883.00 | Price 148.05 | Shares 60
Proposed sale 17 Mar 2025
Value US$4,024,637.52 | Price 150.42 | Shares 26,756
Buy 17 Mar 2025
Value US$37,672.50 | Price 150.69 | Shares 250
Sale 21 Nov 2024
Value US$3,386,438.82 | Price 139.67 | Shares 24,246
Proposed sale 21 Nov 2024
Value US$3,386,310.89 | Price 139.66 | Shares 24,246
Sale 10 Sep 2024
Value US$88,588.68 | Price 146.67 | Shares 604
Sale 10 Sep 2024
Value US$1,565,021.85 | Price 145.95 | Shares 10,723
Sale 10 Sep 2024
Value US$1,357,380.72 | Price 144.88 | Shares 9,369
Sale 10 Sep 2024
Value US$214,936.15 | Price 143.77 | Shares 1,495
Proposed sale 10 Sep 2024
Value US$3,211,481.00 | Price 144.72 | Shares 22,191
Sale 2 Aug 2024
Value US$27,798.75 | Price 158.85 | Shares 175
Sale 2 Aug 2024
Value US$1,111,217.28 | Price 159.36 | Shares 6,973
Proposed sale 2 Aug 2024
Value US$1,139,040.00 | Price 159.35 | Shares 7,148
Proposed sale 1 Aug 2024
Value US$360,720.00 | Price 167.00 | Shares 2,160
Proposed sale 1 Aug 2024
Value US$739,705.38 | Price 165.67 | Shares 4,465
Sale 1 Aug 2024
Value US$739,716.55 | Price 165.67 | Shares 4,465
Buy 14 Jun 2024
Value US$87,822.00 | Price 125.46 | Shares 700
Buy 14 Jun 2024
Value US$113,954.10 | Price 124.54 | Shares 915
Buy 14 Jun 2024
Value US$248,160.00 | Price 124.08 | Shares 2,000
Buy 14 Jun 2024
Value US$150,540.00 | Price 125.45 | Shares 1,200
Sale 21 May 2024
Value US$165,728.07 | Price 171.03 | Shares 969
Sale 21 May 2024
Value US$667,407.00 | Price 170.04 | Shares 3,925
Sale 21 May 2024
Value US$501,547.01 | Price 169.27 | Shares 2,963
Sale 21 May 2024
Value US$662,041.89 | Price 168.33 | Shares 3,933
Sale 21 May 2024
Value US$669,536.40 | Price 167.05 | Shares 4,008
Sale 21 May 2024
Value US$711,022.64 | Price 166.36 | Shares 4,274
Proposed sale 21 May 2024
Value US$3,430,706.24 | Price 170.92 | Shares 20,072
Sale 11 Mar 2024
Value US$681,348.41 | Price 193.73 | Shares 3,517
Proposed sale 11 Mar 2024
Value US$681,348.41 | Price 193.73 | Shares 3,517
Sale 8 Mar 2024
Value US$31,597.80 | Price 202.55 | Shares 156
Sale 8 Mar 2024
Value US$162,610.50 | Price 201.75 | Shares 806
Sale 8 Mar 2024
Value US$261,730.80 | Price 200.56 | Shares 1,305
Sale 8 Mar 2024
Value US$363,543.66 | Price 199.53 | Shares 1,822
Sale 8 Mar 2024
Value US$267,446.85 | Price 198.55 | Shares 1,347
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-04-22 2026-04-21 S Sale
3.3
Loeillot Olivier

Chief Executive Officer

Executive Director
97,460 +0.6%
436.19
US$638,324 		97,460 +0.6% 436.19 US$638,324
2026-04-21 2026-04-21 PrS Proposed sale
3.3
Loeillot Olivier

Officer; Director

Executive Director
23,240
383.91
US$4,198,002 		23,240 383.91 US$4,198,002
2025-12-18 2025-12-17 S Sale
2.5
DAWES KAREN A
Non-Executive Director
12,975 -32.7%
202.36
US$4,302,817 		12,975 -32.7% 202.36 US$4,302,817
2025-12-17 2025-12-17 PrS Proposed sale
2.5
DAWES KAREN A

Director

Non-Executive Director
275
161.00
US$44,275 		275 161.00 US$44,275
2025-11-26 2025-11-25 S Sale
3.3
Loeillot Olivier

Chief Executive Officer

Executive Director
7,041 -16.4%
170.00
US$1,196,970 		7,041 -16.4% 170.00 US$1,196,970
2025-11-25 2025-11-25 PrS Proposed sale
3.3
Loeillot Olivier

Officer; Director

Executive Director
7,041
170.00
US$1,196,970 		7,041 170.00 US$1,196,970
2025-11-19 2025-11-18 S Sale
3.8
Bylund James

Chief Operating Officer

Officer
2,191 -9.2%
151.21
US$331,301 		2,191 -9.2% 151.21 US$331,301
2025-11-18 2025-11-18 PrS Proposed sale
3.8
Bylund James

Officer

Officer
2,191
151.21
US$331,304 		2,191 151.21 US$331,304
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
1,956 -2.4%
157.11
US$307,307 		1,956 -2.4% 157.11 US$307,307
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
5,737 -6.5%
156.22
US$896,234 		5,737 -6.5% 156.22 US$896,234
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
3,000 -3.3%
155.45
US$466,350 		3,000 -3.3% 155.45 US$466,350
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,500 -2.7%
154.32
US$385,800 		2,500 -2.7% 154.32 US$385,800
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,923 -3.0%
153.14
US$447,628 		2,923 -3.0% 153.14 US$447,628
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,100 -2.1%
152.17
US$319,557 		2,100 -2.1% 152.17 US$319,557
2025-11-14 2025-11-13 S Sale
3.2
Hunt Anthony
Non-Executive Director
1,784 -1.8%
151.01
US$269,402 		1,784 -1.8% 151.01 US$269,402
2025-11-13 2025-11-13 PrS Proposed sale
3.2
Hunt Anthony

Director

Non-Executive Director
20,000
154.62
US$3,092,327 		20,000 154.62 US$3,092,327
2025-11-13 2025-11-12 S Sale
3.2
Hunt Anthony
Non-Executive Director
464 -0.5%
158.51
US$73,549 		464 -0.5% 158.51 US$73,549
2025-11-13 2025-11-12 S Sale
3.2
Hunt Anthony
Non-Executive Director
11,096 -9.9%
158.01
US$1,753,279 		11,096 -9.9% 158.01 US$1,753,279
2025-11-13 2025-11-12 S Sale
3.2
Hunt Anthony
Non-Executive Director
4,959 -4.2%
156.65
US$776,827 		4,959 -4.2% 156.65 US$776,827
2025-11-13 2025-11-12 S Sale
3.2
Hunt Anthony
Non-Executive Director
4,740 -3.9%
155.85
US$738,729 		4,740 -3.9% 155.85 US$738,729
2025-11-13 2025-11-12 S Sale
3.2
Hunt Anthony
Non-Executive Director
3,741 -3.0%
154.92
US$579,556 		3,741 -3.0% 154.92 US$579,556
2025-11-12 2025-11-12 PrS Proposed sale
3.2
Hunt Anthony

Director

Non-Executive Director
25,000
156.88
US$3,921,981 		25,000 156.88 US$3,921,981
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,179 -2.1%
122.23
US$266,339 		2,179 -2.1% 122.23 US$266,339
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
7,584 -6.9%
121.42
US$920,849 		7,584 -6.9% 121.42 US$920,849
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
14,882 -11.9%
120.19
US$1,788,668 		14,882 -11.9% 120.19 US$1,788,668
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
3,262 -2.5%
119.64
US$390,266 		3,262 -2.5% 119.64 US$390,266
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
1,108 -0.9%
118.32
US$131,099 		1,108 -0.9% 118.32 US$131,099
2025-09-11 2025-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
96 -0.1%
116.34
US$11,169 		96 -0.1% 116.34 US$11,169
2025-09-10 2025-09-10 PrS Proposed sale
3.2
Hunt Anthony

Director

Non-Executive Director
29,111
120.52
US$3,508,378 		29,111 120.52 US$3,508,378
2025-08-12 2025-08-08 B Purchase
4.1
Madaus Martin D
Non-Executive Director
1,800 +inf%
112.13
US$201,830 		1,800 +inf% 112.13 US$201,830
2025-05-16 2025-05-15 S Sale
3.2
Hunt Anthony
Non-Executive Director
7 -0.0%
127.00
US$889 		7 -0.0% 127.00 US$889
2025-05-16 2025-05-15 S Sale
3.2
Hunt Anthony
Non-Executive Director
268 -0.2%
125.20
US$33,554 		268 -0.2% 125.20 US$33,554
2025-05-16 2025-05-15 S Sale
3.2
Hunt Anthony
Non-Executive Director
6,533 -5.6%
124.34
US$812,313 		6,533 -5.6% 124.34 US$812,313
2025-05-16 2025-05-15 S Sale
3.2
Hunt Anthony
Non-Executive Director
17,596 -13.1%
123.57
US$2,174,338 		17,596 -13.1% 123.57 US$2,174,338
2025-05-16 2025-05-15 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,043 -1.5%
122.66
US$250,594 		2,043 -1.5% 122.66 US$250,594
2025-05-15 2025-05-15 PrS Proposed sale
3.2
Hunt Anthony

Director

Non-Executive Director
26,447
128.34
US$3,394,208 		26,447 128.34 US$3,394,208
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,283 -1.6%
153.70
US$350,897 		2,283 -1.6% 153.70 US$350,897
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
15,619 -10.1%
152.82
US$2,386,896 		15,619 -10.1% 152.82 US$2,386,896
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
6,176 -3.9%
151.96
US$938,505 		6,176 -3.9% 151.96 US$938,505
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
2,518 -1.5%
151.09
US$380,445 		2,518 -1.5% 151.09 US$380,445
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
100 -0.1%
150.38
US$15,038 		100 -0.1% 150.38 US$15,038
2025-03-19 2025-03-17 S Sale
3.2
Hunt Anthony
Non-Executive Director
60 -0.0%
148.05
US$8,883 		60 -0.0% 148.05 US$8,883
2025-03-18 2025-03-17 B Purchase
0.7
Pax Margaret
Non-Executive Director
250 +31.5%
150.69
US$37,672 		250 +31.5% 150.69 US$37,672
2025-03-17 2025-03-17 PrS Proposed sale
3.2
Hunt Anthony

Director

Non-Executive Director
26,756
150.42
US$4,024,638 		26,756 150.42 US$4,024,638
2024-11-22 2024-11-21 S Sale
3.2
Hunt Anthony
Non-Executive Director
24,246 -14.8%
139.67
US$3,386,439 		24,246 -14.8% 139.67 US$3,386,439
2024-11-21 2024-11-21 PrS Proposed sale
3.2
Anthony Hunt

Executive Chairman
24,246
139.66
US$3,386,311 		24,246 139.66 US$3,386,311
2024-09-12 2024-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
604 -0.4%
146.67
US$88,589 		604 -0.4% 146.67 US$88,589
2024-09-12 2024-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
10,723 -7.1%
145.95
US$1,565,022 		10,723 -7.1% 145.95 US$1,565,022
2024-09-12 2024-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
9,369 -5.8%
144.88
US$1,357,381 		9,369 -5.8% 144.88 US$1,357,381
2024-09-12 2024-09-10 S Sale
3.2
Hunt Anthony
Non-Executive Director
1,495 -0.9%
143.77
US$214,936 		1,495 -0.9% 143.77 US$214,936
2024-09-10 2024-09-10 PrS Proposed sale
3.2
Hunt Anthony

Officer

Officer
22,191
144.72
US$3,211,481 		22,191 144.72 US$3,211,481
2024-08-05 2024-08-02 S Sale
3.2
KURIYEL RALF

Senior VP, R&D

Officer
175 -1.4%
158.85
US$27,799 		175 -1.4% 158.85 US$27,799
2024-08-05 2024-08-02 S Sale
3.2
KURIYEL RALF

Senior VP, R&D

Officer
6,973 -36.2%
159.36
US$1,111,217 		6,973 -36.2% 159.36 US$1,111,217
2024-08-02 2024-08-02 PrS Proposed sale
3.2
Ralf Kuriyel

Senior Vice President
7,148
159.35
US$1,139,040 		7,148 159.35 US$1,139,040
2024-08-01 2024-08-01 PrS Proposed sale
3.0
Christine Gebski

Senior Vice President
2,160
167.00
US$360,720 		2,160 167.00 US$360,720
2024-08-01 2024-08-01 PrS Proposed sale
3.2
Ralf Kuriyel

Senior Vice President
4,465
165.67
US$739,705 		4,465 165.67 US$739,705
2024-08-01 2024-08-01 S Sale
3.2
KURIYEL RALF

Senior VP, R&D

Officer
4,465 -18.8%
165.67
US$739,717 		4,465 -18.8% 165.67 US$739,717
2024-06-14 2024-06-14 B Purchase
4.1
Madaus Martin D
Non-Executive Director
700 +17.9%
125.46
US$87,822 		700 +17.9% 125.46 US$87,822
2024-06-14 2024-06-14 B Purchase
4.1
Madaus Martin D
Non-Executive Director
915 +30.5%
124.54
US$113,954 		915 +30.5% 124.54 US$113,954
2024-06-14 2024-06-14 B Purchase
3.2
Hunt Anthony

Chief Executive Officer

Officer
2,000 +1.2%
124.08
US$248,160 		2,000 +1.2% 124.08 US$248,160
2024-06-14 2024-06-14 B Purchase
3.6
BARTHELEMY NICOLAS
Non-Executive Director
1,200 +34.6%
125.45
US$150,540 		1,200 +34.6% 125.45 US$150,540
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
969 -0.6%
171.03
US$165,728 		969 -0.6% 171.03 US$165,728
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
3,925 -2.3%
170.04
US$667,407 		3,925 -2.3% 170.04 US$667,407
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
2,963 -1.7%
169.27
US$501,547 		2,963 -1.7% 169.27 US$501,547
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
3,933 -2.2%
168.33
US$662,042 		3,933 -2.2% 168.33 US$662,042
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
4,008 -2.2%
167.05
US$669,536 		4,008 -2.2% 167.05 US$669,536
2024-05-22 2024-05-21 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
4,274 -2.3%
166.36
US$711,023 		4,274 -2.3% 166.36 US$711,023
2024-05-21 2024-05-21 PrS Proposed sale
3.2
Hunt Anthony

Officer

Officer
20,072
170.92
US$3,430,706 		20,072 170.92 US$3,430,706
2024-03-12 2024-03-11 S Sale
3.2
KURIYEL RALF

Senior VP, R&D

Officer
3,517 -12.7%
193.73
US$681,348 		3,517 -12.7% 193.73 US$681,348
2024-03-11 2024-03-11 PrS Proposed sale
3.2
Ralf Kuriyel

Officer

Officer
3,517
193.73
US$681,348 		3,517 193.73 US$681,348
2024-03-11 2024-03-08 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
156 -0.1%
202.55
US$31,598 		156 -0.1% 202.55 US$31,598
2024-03-11 2024-03-08 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
806 -0.4%
201.75
US$162,610 		806 -0.4% 201.75 US$162,610
2024-03-11 2024-03-08 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
1,305 -0.7%
200.56
US$261,731 		1,305 -0.7% 200.56 US$261,731
2024-03-11 2024-03-08 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
1,822 -1.0%
199.53
US$363,544 		1,822 -1.0% 199.53 US$363,544
2024-03-11 2024-03-08 S Sale
3.2
Hunt Anthony

Chief Executive Officer

Officer
1,347 -0.7%
198.55
US$267,447 		1,347 -0.7% 198.55 US$267,447
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