United States Biotechnology & Medical Research

Charles River Laboratories International Inc (CRL)

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Charles River Laboratories experienced significant insider selling recently, totaling nearly $50 million. Following an earnings report that exceeded expectations, executives including James Foster and Michael Knell offloaded shares. The stock price has surged 70.1% over the last quarter, currently trading near its 52-week high, reflecting strong market momentum alongside these divestment activities.
Ticker: CRL Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Charles River Laboratories International Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Proposed sale 11 Aug 2026
Value US$901,237.26 | Price 83.58 | Shares 70,097
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
2026-08-11 2026-08-11 PrS Proposed sale
2.3
Parisotto Shannon M

Officer

Officer
70,097
83.58
US$901,237 		70,097 83.58 US$901,237
2026-08-11 2026-08-11 PrS Proposed sale
2.8
Girshick Birgit

Officer; CEO & President

Officer
41,563
223.82
US$1,524,682 		41,563 223.82 US$1,524,682
2026-08-11 2026-08-11 PrS Proposed sale
2.8
Girshick Birgit

Officer; CEO & President

Officer
61,497
194.52
US$3,540,882 		61,497 194.52 US$3,540,882
2026-08-11 2026-08-10 PlS Planned sale
2.7
FOSTER JAMES C
Non-Executive Director
1,000 -47.6%
275.00
US$100,000 		1,000 -47.6% 275.00 US$100,000
2026-08-10 2026-08-10 PrS Proposed sale
2.7
FOSTER JAMES C

Director

Non-Executive Director
1,000
275.00
US$100,000 		1,000 275.00 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -5.8%
258.53
US$100,000 		1,000 -5.8% 258.53 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -8.7%
258.53
US$100,000 		1,000 -8.7% 258.53 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -2.8%
258.53
US$100,000 		1,000 -2.8% 258.53 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -3.9%
265.17
US$100,000 		1,000 -3.9% 265.17 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -4.8%
263.94
US$100,000 		1,000 -4.8% 263.94 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -1.6%
262.37
US$100,000 		1,000 -1.6% 262.37 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -5.8%
261.45
US$100,000 		1,000 -5.8% 261.45 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -6.1%
260.63
US$100,000 		1,000 -6.1% 260.63 US$100,000
2026-08-10 2026-08-06 S Sale
3.0
Knell Michael Gunnar

SVP, Finance and CAO

Officer
1,000 -7.9%
259.07
US$100,000 		1,000 -7.9% 259.07 US$100,000
2026-08-10 2026-08-06 S Sale
2.3
Creamer Victoria L

EVP & Chief People Officer

Officer
1,000 -12.2%
259.16
US$100,000 		1,000 -12.2% 259.16 US$100,000
2026-08-06 2026-08-06 PrS Proposed sale
3.0
Michael Knell

Officer

Officer
1,000
260.00
US$100,000 		1,000 260.00 US$100,000
2026-08-06 2026-08-06 PrS Proposed sale
2.3
Victoria Creamer

Officer

Officer
1,000
260.00
US$100,000 		1,000 260.00 US$100,000
2026-08-06 2026-08-05 PlS Planned sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
1,000 -51.2%
263.00
US$100,000 		1,000 -51.2% 263.00 US$100,000
2026-08-05 2026-08-05 PrS Proposed sale
2.3
Parisotto Shannon M

Officer

Officer
1,000
263.00
US$100,000 		1,000 263.00 US$100,000
2026-07-01 2026-06-29 PlS Planned sale
2.7
FOSTER JAMES C
Non-Executive Director
75,000 -70.4%
225.00
US$16,875,000 		75,000 -70.4% 225.00 US$16,875,000
2026-06-29 2026-06-29 PrS Proposed sale
2.7
FOSTER JAMES C

Director

Non-Executive Director
75,000
225.00
US$16,875,000 		75,000 225.00 US$16,875,000
2026-03-04 2026-03-03 B Purchase
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
25 +0.1%
174.54
US$4,364 		25 +0.1% 174.54 US$4,364
2026-01-20 2025-08-22 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
400 -1.7%
163.72
US$65,488 		400 -1.7% 163.72 US$65,488
2025-08-22 2025-08-22 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
400
152.50
US$61,000 		400 152.50 US$61,000
2025-08-20 2025-08-18 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
800 -3.2%
157.60
US$126,080 		800 -3.2% 157.60 US$126,080
2025-08-18 2025-08-18 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
800
157.00
US$125,600 		800 157.00 US$125,600
2025-08-18 2025-08-18 PrS Proposed sale
3.3
WALLMAN RICHARD F

Former Director

Non-Executive Director
22,500
152.00
US$3,420,000 		22,500 152.00 US$3,420,000
2025-08-08 2025-08-07 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
400 -1.6%
150.04
US$60,016 		400 -1.6% 150.04 US$60,016
2025-08-07 2025-08-07 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
400
150.00
US$60,000 		400 150.00 US$60,000
2025-07-21 2025-07-21 PrS Proposed sale
3.3
WALLMAN RICHARD F

Former Director

Non-Executive Director
8,500
150.00
US$1,275,000 		8,500 150.00 US$1,275,000
2025-06-25 2025-06-23 PrS Proposed sale
3.3
WALLMAN RICHARD F

Former Director

Non-Executive Director
4,000
137.50
US$550,000 		4,000 137.50 US$550,000
2025-05-16 2025-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
24 -0.4%
139.05
US$3,337 		24 -0.4% 139.05 US$3,337
2025-05-16 2025-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
81 -1.4%
137.68
US$11,152 		81 -1.4% 137.68 US$11,152
2025-05-16 2025-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
35 -0.6%
136.32
US$4,771 		35 -0.6% 136.32 US$4,771
2025-05-15 2025-05-14 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
7 -0.1%
145.54
US$1,019 		7 -0.1% 145.54 US$1,019
2025-05-15 2025-05-14 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
7 -0.1%
143.77
US$1,006 		7 -0.1% 143.77 US$1,006
2025-05-15 2025-05-14 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
14 -0.2%
141.85
US$1,986 		14 -0.2% 141.85 US$1,986
2025-05-15 2025-05-14 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
21 -0.4%
140.78
US$2,956 		21 -0.4% 140.78 US$2,956
2025-05-15 2025-05-14 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
91 -1.6%
139.95
US$12,735 		91 -1.6% 139.95 US$12,735
2025-05-14 2025-05-14 PrS Proposed sale
3.4
MASSARO GEORGE

Director

Non-Executive Director
280
140.73
US$39,405 		280 140.73 US$39,405
2025-05-15 2025-05-13 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
500 -2.5%
145.41
US$72,705 		500 -2.5% 145.41 US$72,705
2025-05-13 2025-05-13 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
500
144.32
US$72,160 		500 144.32 US$72,160
2025-02-21 2025-02-20 B Purchase
2.7
FOSTER JAMES C

Chairman, President and CEO

Executive Director
6,075 +3.4%
165.01
US$1,002,436 		6,075 +3.4% 165.01 US$1,002,436
2025-02-21 2025-02-20 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
4,400 -18.0%
162.50
US$715,000 		4,400 -18.0% 162.50 US$715,000
2025-02-21 2025-02-20 B Purchase
2.8
Girshick Birgit

Corporate Executive VP & COO

Officer
1,514 +2.8%
164.63
US$249,250 		1,514 +2.8% 164.63 US$249,250
2025-02-20 2025-02-20 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
4,400
165.00
US$726,000 		4,400 165.00 US$726,000
2024-11-12 2024-11-07 S Sale
3.3
WALLMAN RICHARD F
Non-Executive Director
1,000 -100.0%
216.50
US$216,500 		1,000 -100.0% 216.50 US$216,500
2024-11-12 2024-11-07 S Sale
3.3
WALLMAN RICHARD F
Non-Executive Director
3,250 -20.8%
216.50
US$703,625 		3,250 -20.8% 216.50 US$703,625
2024-11-12 2024-11-07 S Sale
3.3
WALLMAN RICHARD F
Non-Executive Director
3,371 -17.7%
215.75
US$727,293 		3,371 -17.7% 215.75 US$727,293
2024-11-07 2024-11-07 PrS Proposed sale
3.3
WALLMAN RICHARD F

Director

Non-Executive Director
12,161
216.01
US$2,626,923 		12,161 216.01 US$2,626,923
2024-08-12 2024-08-08 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
1,780 -7.3%
199.36
US$354,861 		1,780 -7.3% 199.36 US$354,861
2024-08-08 2024-08-08 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
1,780
196.63
US$350,000 		1,780 196.63 US$350,000
2024-08-05 2024-08-01 PlS Planned sale
2.7
FOSTER JAMES C

Chairman, President and CEO

Executive Director
25,000 -11.7%
250.00
US$6,250,000 		25,000 -11.7% 250.00 US$6,250,000
2024-08-01 2024-08-01 PrS Proposed sale
2.7
FOSTER JAMES C

Officer; Chairman, President , CEO

Officer
25,000
250.00
US$6,250,000 		25,000 250.00 US$6,250,000
2024-05-16 2024-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
96 -1.6%
236.78
US$22,731 		96 -1.6% 236.78 US$22,731
2024-05-16 2024-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
113 -1.9%
235.61
US$26,624 		113 -1.9% 235.61 US$26,624
2024-05-16 2024-05-15 PlS Planned sale
3.4
MASSARO GEORGE
Non-Executive Director
123 -2.0%
234.72
US$28,871 		123 -2.0% 234.72 US$28,871
2024-05-15 2024-05-15 PrS Proposed sale
3.4
MASSARO GEORGE

Director

Non-Executive Director
332
236.07
US$78,375 		332 236.07 US$78,375
2024-05-14 2024-05-10 S Sale
2.6
LaPlume Joseph W

EVP, Corp Strategy & Develop

Officer
1,304 -5.3%
226.97
US$295,969 		1,304 -5.3% 226.97 US$295,969
2024-05-10 2024-05-10 PrS Proposed sale
2.6
Joseph LaPlume

Officer

Officer
1,304
230.06
US$300,000 		1,304 230.06 US$300,000
2024-03-11 2024-03-08 S Sale
3.0
Knell Michael Gunnar

CSVP&Chief Accounting Officer

Officer
808 -10.3%
267.52
US$216,156 		808 -10.3% 267.52 US$216,156
2024-03-08 2024-03-08 PrS Proposed sale
3.0
Michael Knell

Officer

Officer
808
270.00
US$218,160 		808 270.00 US$218,160
2024-03-05 2024-03-04 S Sale
3.0
Knell Michael Gunnar

CSVP&Chief Accounting Officer

Officer
1,000 -11.3%
261.35
US$261,350 		1,000 -11.3% 261.35 US$261,350
2024-03-05 2024-03-04 S Sale
3.0
Knell Michael Gunnar

CSVP&Chief Accounting Officer

Officer
1,750 -16.5%
260.88
US$456,540 		1,750 -16.5% 260.88 US$456,540
2024-03-04 2024-03-04 PrS Proposed sale
3.0
Michael Knell

Officer

Officer
2,750
264.00
US$726,000 		2,750 264.00 US$726,000
2024-03-04 2024-02-29 S Sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
100 -1.4%
254.02
US$25,402 		100 -1.4% 254.02 US$25,402
2024-03-04 2024-02-29 S Sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
3,686 -43.5%
253.43
US$934,143 		3,686 -43.5% 253.43 US$934,143
2024-03-01 2024-02-29 S Sale
2.3
Creamer Victoria L

EVP & Chief People Officer

Officer
5,000 -27.0%
253.70
US$1,268,500 		5,000 -27.0% 253.70 US$1,268,500
2024-02-29 2024-02-29 PrS Proposed sale
2.3
VICTORIA CREAMER

Officer

Officer
5,000
253.00
US$1,265,000 		5,000 253.00 US$1,265,000
2024-02-29 2024-02-29 PrS Proposed sale
2.3
Shannon Parisotto

Officer

Officer
3,786
259.00
US$980,574 		3,786 259.00 US$980,574
2024-02-23 2024-02-22 S Sale
3.3
Barbo William D

Corporate Executive VP & CCO

Officer
4,050 -15.0%
248.50
US$1,006,425 		4,050 -15.0% 248.50 US$1,006,425
2024-02-22 2024-02-22 PrS Proposed sale
3.3
Wiliam D. Barbo Revocable Trust of 2019

Officer

Officer
4,050
247.00
US$1,000,350 		4,050 247.00 US$1,000,350
2024-02-20 2024-02-15 PlS Planned sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
89 -3.3%
245.34
US$21,835 		89 -3.3% 245.34 US$21,835
2024-02-20 2024-02-15 PlS Planned sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
749 -21.8%
244.61
US$183,213 		749 -21.8% 244.61 US$183,213
2024-02-20 2024-02-15 PlS Planned sale
2.3
Parisotto Shannon M

CEVP, Disc & Safety Assessment

Officer
604 -15.0%
243.96
US$147,352 		604 -15.0% 243.96 US$147,352
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