United States Healthcare Equipment & Supplies

Bio Rad Laboratories Inc (BIO)

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Over the past 90 days, Bio-Rad Laboratories Inc. recorded three insider transactions, all involving sales. These transactions resulted in a net negative value of approximately $135,597. The activity follows the company's most recent earnings report, which showed an EPS miss of 5.02%. The stock has experienced a 15% price increase over the last quarter.
Ticker: BIO 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 Bio Rad Laboratories Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Trades
Proposed sale 28 May 2026
Value US$884,284.09 | Price 50.20 | Shares 16,024
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
2026-05-28 2026-05-28 PrS Proposed sale
Alles Institute for Medical Research Corp

Director; 10% Stockholder

Non-Executive Director Large shareholder
16,024
50.20
US$884,284 		16,024 50.20 US$884,284
2026-05-13 2026-05-11 S Sale
ENGELHARDT EVA ANETTE

EVP, President, CDG

Officer
74,213 +19.2%
49.78
US$4,430,840 		74,213 +19.2% 49.78 US$4,430,840
2026-05-11 2026-05-11 PrS Proposed sale
EVA ENGELHARDT

Officer

Officer
34,306
313.70
US$3,993,048 		34,306 313.70 US$3,993,048
2025-12-02 2025-12-02 PrS Proposed sale
3.0
MICHAEL W CROWLEY

Officer

Officer
776
319.56
US$247,979 		776 319.56 US$247,979
2025-11-18 2025-11-18 PrS Proposed sale
Alles Institute for Medical Research Corp

Director; 10% Stockholder

Non-Executive Director Large shareholder
760
301.04
US$228,793 		760 301.04 US$228,793
2025-11-10 2025-11-06 S Sale
2.4
BARRY JAMES

EVP, President, LSG

Officer
700 -57.9%
306.18
US$214,289 		700 -57.9% 306.18 US$214,289
2025-11-06 2025-11-06 PrS Proposed sale
2.4
JAMES BARRY

Officer

Officer
701
306.18
US$214,633 		701 306.18 US$214,633
2025-08-05 2025-08-05 PrS Proposed sale
3.0
MICHAEL W CROWLEY

Officer

Officer
1,488
275.92
US$410,572 		1,488 275.92 US$410,572
2025-03-18 2025-03-14 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
3,000 -26.9%
247.06
US$741,184 		3,000 -26.9% 247.06 US$741,184
2025-03-13 2025-03-13 PrS Proposed sale
3.0
Crowley Michael

Officer

Officer
3,000
260.00
US$780,000 		3,000 260.00 US$780,000
2025-03-11 2025-03-11 PrS Proposed sale
Alles Institute for Medical Research Corp

Director; 10% Stockholder

Non-Executive Director Large shareholder
410
247.66
US$101,540 		410 247.66 US$101,540
2024-11-06 2024-11-06 PrS Proposed sale
2.1
Last Andrew J.

Officer

Officer
3,000
373.64
US$1,120,934 		3,000 373.64 US$1,120,934
2024-09-12 2024-09-12 PrS Proposed sale
2.1
Last Andrew J.

Officer

Officer
1,600
321.57
US$514,505 		1,600 321.57 US$514,505
2024-09-10 2024-09-06 S Sale
2.1
Last Andrew J.

EVP, Chief Operating Officer

Officer
3,000 -28.4%
329.94
US$989,815 		3,000 -28.4% 329.94 US$989,815
2024-09-06 2024-09-06 PrS Proposed sale
2.1
Last Andrew J.

Officer

Officer
3,000
329.94
US$989,815 		3,000 329.94 US$989,815
2024-09-04 2024-09-04 PrS Proposed sale
2.4
BARRY JAMES

Officer

Officer
623
330.49
US$205,898 		623 330.49 US$205,898
2024-09-04 2024-09-04 S Sale
2.4
BARRY JAMES

EVP, President, LSG

Officer
623 -81.0%
330.49
US$205,898 		623 -81.0% 330.49 US$205,898
2024-08-27 2024-08-27 PrS Proposed sale
Alles Institute for Medical Research Corp

Director; 10% Stockholder

Non-Executive Director Large shareholder
990
311.34
US$308,225 		990 311.34 US$308,225
2024-06-14 2024-06-13 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
369 -5.3%
281.91
US$104,023 		369 -5.3% 281.91 US$104,023
2024-06-13 2024-06-13 PrS Proposed sale
3.0
Crowley Michael

Officer

Officer
369
281.91
US$104,023 		369 281.91 US$104,023
2024-02-29 2024-02-28 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
2,500 -42.4%
330.55
US$826,375 		2,500 -42.4% 330.55 US$826,375
2024-02-28 2024-02-28 PrS Proposed sale
3.7
ERNST TIMOTHY S

Officer

Officer
2,500
330.55
US$826,362 		2,500 330.55 US$826,362
2024-02-28 2024-02-27 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
3,000 -30.2%
336.00
US$1,008,000 		3,000 -30.2% 336.00 US$1,008,000
2024-02-27 2024-02-27 PrS Proposed sale
3.0
Crowley Michael

Officer

Officer
3,000
336.00
US$1,008,009 		3,000 336.00 US$1,008,009
2024-02-27 2024-02-27 PrS Proposed sale
WRIGHT DARA

Officer

Officer
1,838
335.25
US$616,181 		1,838 335.25 US$616,181
2023-12-12 2023-12-12 PrS Proposed sale
WRIGHT DARA

Officer

Officer
1,200
299.16
US$358,989 		1,200 299.16 US$358,989
2023-12-12 2023-12-12 PlS Planned sale
WRIGHT DARA

EVP, President, CDG

Officer
1,200 -44.5%
299.16
US$358,992 		1,200 -44.5% 299.16 US$358,992
2023-11-28 2023-11-28 PrS Proposed sale
3.0
Crowley Michael

Officer

Officer
642
305.10
US$195,873 		642 305.10 US$195,873
2023-11-28 2023-11-28 PrS Proposed sale
Alles Institute for Medical Research Corp

Director; 10% Stockholder

Non-Executive Director Large shareholder
800
302.34
US$241,874 		800 302.34 US$241,874
2023-11-28 2023-11-28 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
642 -8.5%
305.10
US$195,874 		642 -8.5% 305.10 US$195,874
2023-08-31 2023-08-30 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
377 -13.5%
396.44
US$149,458 		377 -13.5% 396.44 US$149,458
2023-08-31 2023-08-30 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
1,582 -36.2%
395.76
US$626,092 		1,582 -36.2% 395.76 US$626,092
2023-08-31 2023-08-30 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
391 -8.2%
394.16
US$154,117 		391 -8.2% 394.16 US$154,117
2023-08-30 2023-08-30 PrS Proposed sale
3.7
ERNST TIMOTHY S

Officer

Officer
2,350
393.00
US$923,550 		2,350 393.00 US$923,550
2023-08-23 2023-08-23 PrS Proposed sale
3.7
ERNST TIMOTHY S

Officer

Officer
300
384.69
US$115,407 		300 384.69 US$115,407
2023-08-23 2023-08-23 PlS Planned sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
300 -11.0%
384.69
US$115,407 		300 -11.0% 384.69 US$115,407
2023-06-16 2023-06-15 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
500 -7.6%
379.39
US$189,695 		500 -7.6% 379.39 US$189,695
2023-06-15 2023-06-15 PrS Proposed sale
3.0
Crowley Michael

Officer

Officer
500
379.39
US$189,692 		500 379.39 US$189,692
2023-06-07 2023-06-06 S Sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
181 -100.0%
368.28
US$66,659 		181 -100.0% 368.28 US$66,659
2023-06-07 2023-06-06 S Sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
17 -8.7%
368.49
US$6,394 		17 -8.7% 368.49 US$6,394
2023-06-06 2023-06-06 PrS Proposed sale
1.9
RAMALINGAM AJIT

Officer

Officer
198
368.96
US$73,054 		198 368.96 US$73,054
2024-05-01 2023-05-03 S Sale
3.1
SCHWARTZ STEVEN D
Large shareholder
320 -17.6%
463.86
US$148,435 		320 -17.6% 463.86 US$148,435
2024-05-01 2023-05-03 S Sale
3.1
SCHWARTZ STEVEN D
Large shareholder
320 -17.6%
463.86
US$148,435 		320 -17.6% 463.86 US$148,435
2023-03-08 2023-03-08 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
746 -21.8%
486.89
US$363,220 		746 -21.8% 486.89 US$363,220
2023-03-08 2023-03-08 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
1,000 -22.6%
486.08
US$486,080 		1,000 -22.6% 486.08 US$486,080
2022-11-14 2022-11-10 S Sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
0 -100.0%
423.61
US$161 		0 -100.0% 423.61 US$161
2022-11-14 2022-11-10 S Sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
112 -99.7%
422.28
US$47,295 		112 -99.7% 422.28 US$47,295
2022-11-14 2022-11-10 PlS Planned sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
267 -70.4%
421.70
US$112,594 		267 -70.4% 421.70 US$112,594
2022-08-08 2022-08-05 PlS Planned sale
1.9
RAMALINGAM AJIT

SVP, Chief Accounting Officer

Officer
518 -84.0%
537.00
US$278,166 		518 -84.0% 537.00 US$278,166
2021-11-15 2021-11-12 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
4,800 -51.1%
750.05
US$3,600,240 		4,800 -51.1% 750.05 US$3,600,240
2021-11-15 2021-11-11 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
500 -9.8%
750.00
US$375,000 		500 -9.8% 750.00 US$375,000
2021-11-15 2021-11-11 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
613 -10.7%
748.84
US$459,039 		613 -10.7% 748.84 US$459,039
2021-11-15 2021-11-11 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
433 -7.1%
748.08
US$323,919 		433 -7.1% 748.08 US$323,919
2021-08-05 2021-08-04 PlS Planned sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
327 -26.2%
760.26
US$248,605 		327 -26.2% 760.26 US$248,605
2021-02-22 2021-02-19 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
196 -13.8%
640.17
US$125,542 		196 -13.8% 640.17 US$125,542
2021-02-22 2021-02-19 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
327 -18.8%
640.92
US$209,581 		327 -18.8% 640.92 US$209,581
2021-02-22 2021-02-19 S Sale
3.7
ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
400 -18.7%
640.94
US$256,376 		400 -18.7% 640.94 US$256,376
2020-12-17 2020-12-15 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
374 -9.3%
580.67
US$217,171 		374 -9.3% 580.67 US$217,171
2020-11-10 2020-11-06 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
246 -5.6%
641.53
US$157,816 		246 -5.6% 641.53 US$157,816
2020-11-10 2020-11-06 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
734 -14.4%
640.78
US$470,333 		734 -14.4% 640.78 US$470,333
2020-11-10 2020-11-06 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President

Officer
220 -4.1%
639.62
US$140,716 		220 -4.1% 639.62 US$140,716
2020-08-21 2020-08-19 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
339 -1.6%
521.86
US$176,911 		339 -1.6% 521.86 US$176,911
2020-08-21 2020-08-19 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
5,668 -21.2%
520.94
US$2,952,688 		5,668 -21.2% 520.94 US$2,952,688
2020-08-21 2020-08-19 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
1,133 -4.1%
519.89
US$589,035 		1,133 -4.1% 519.89 US$589,035
2020-08-21 2020-08-19 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
5,392 -16.2%
518.76
US$2,797,154 		5,392 -16.2% 518.76 US$2,797,154
2020-08-21 2020-08-19 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
315 -0.9%
517.64
US$163,057 		315 -0.9% 517.64 US$163,057
2020-08-19 2020-08-18 S Sale
1.7
Magni Giovanni

EVP, Chief Strategy Officer

Officer
2,382 -16.1%
518.81
US$1,235,805 		2,382 -16.1% 518.81 US$1,235,805
2020-06-02 2020-06-01 S Sale
3.0
Crowley Michael

EVP, GBL Commercial Operations

Officer
1,500 -39.4%
485.40
US$728,100 		1,500 -39.4% 485.40 US$728,100
2020-05-14 2020-05-13 PlS Planned sale
HUTTON RONALD W

Vice President and Treasurer

Officer
443 -9.7%
457.35
US$202,606 		443 -9.7% 457.35 US$202,606
2019-12-05 2019-12-04 S Sale ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
656 -59.0%
370.12
US$242,799 		656 -59.0% 370.12 US$242,799
2019-12-05 2019-12-04 S Sale ERNST TIMOTHY S

EVP, General Counsel & Sec

Officer
1,250 -52.9%
370.11
US$462,638 		1,250 -52.9% 370.11 US$462,638
2019-11-12 2019-11-11 S Sale STARK JAMES R

VP, Corporate Controller

Officer
848 -100.0%
351.45
US$298,030 		848 -100.0% 351.45 US$298,030
2019-09-16 2019-09-12 S Sale
3.3
TUMOLO ANNETTE

Executive Vice President
522 -17.8%
330.00
US$172,260 		522 -17.8% 330.00 US$172,260
2019-09-13 2019-09-12 S Sale
1.4
HERTIA JOHN

Executive Vice President
41 -0.2%
329.00
US$13,489 		41 -0.2% 329.00 US$13,489
2019-09-13 2019-09-12 S Sale
1.4
HERTIA JOHN

Executive Vice President
797 -4.1%
328.25
US$261,615 		797 -4.1% 328.25 US$261,615
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