United States Healthcare Equipment & Supplies

Harvard Bioscience Inc (HBIO)

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The most recent insider trading activity at Harvard Bioscience Inc. occurred on March 17, 2026. During mid-March 2026, multiple insiders, including the CEO and CFO, executed a series of open-market purchase transactions. No insider trading activity has been reported in the last three months.
Ticker: HBIO Exchange: NMS
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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 Harvard Bioscience Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Buy 17 Mar 2026
Value US$4,303,237.75 | Price 116.65 | Shares 61,306 (+26.9%)
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
2026-03-18 2026-03-17 B Purchase
3.2
DENELSKY STEPHEN J
Non-Executive Director
61,306 +26.9%
116.65
US$4,303,238 		61,306 +26.9% 116.65 US$4,303,238
2026-03-18 2026-03-17 B Purchase
3.5
Snider William
Non-Executive Director
53,365 +17.3%
453.33
US$344,921 		53,365 +17.3% 453.33 US$344,921
2026-04-01 2026-03-16 B Purchase
3.8
Frost Mark T

Chief Financial Officer

Officer
26,790 -8.7%
236.87
US$1,753,867 		26,790 -8.7% 236.87 US$1,753,867
2026-03-18 2026-03-16 B Purchase
3.5
Snider William
Non-Executive Director
12,525 +113.9%
4.99
US$62,500 		12,525 +113.9% 4.99 US$62,500
2026-03-17 2026-03-16 B Purchase
3.1
Duke John D

Chief Executive Officer

Executive Director
5,000 +5.0%
5.01
US$25,050 		5,000 +5.0% 5.01 US$25,050
2024-06-14 2024-06-13 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
10,000 +0.3%
2.91
US$29,100 		10,000 +0.3% 2.91 US$29,100
2024-06-07 2024-06-06 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
20,000 +0.6%
3.07
US$61,400 		20,000 +0.6% 3.07 US$61,400
2023-08-21 2023-08-17 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
25,000 +0.9%
4.38
US$109,500 		25,000 +0.9% 4.38 US$109,500
2023-03-16 2023-03-15 B Purchase
3.3
EDRICK ALAN I
Non-Executive Director
16,192 +8.7%
2.62
US$42,423 		16,192 +8.7% 2.62 US$42,423
2023-03-15 2023-03-15 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
20,000 +0.7%
2.60
US$52,000 		20,000 +0.7% 2.60 US$52,000
2023-03-16 2023-03-14 B Purchase
3.3
EDRICK ALAN I
Non-Executive Director
13,808 +8.0%
2.67
US$36,867 		13,808 +8.0% 2.67 US$36,867
2023-03-15 2023-03-14 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
20,000 +0.7%
2.67
US$53,400 		20,000 +0.7% 2.67 US$53,400
2022-12-02 2022-12-01 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
15,000 +0.7%
2.61
US$39,150 		15,000 +0.7% 2.61 US$39,150
2022-12-02 2022-11-30 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
15,000 +0.7%
2.41
US$36,150 		15,000 +0.7% 2.41 US$36,150
2022-08-29 2022-08-26 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
9,291 +2.4%
3.41
US$31,682 		9,291 +2.4% 3.41 US$31,682
2022-08-26 2022-08-25 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
8,244 +2.2%
3.34
US$27,535 		8,244 +2.2% 3.34 US$27,535
2022-08-26 2022-08-24 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
17,291 +4.7%
3.23
US$55,850 		17,291 +4.7% 3.23 US$55,850
2022-08-24 2022-08-23 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
8,939 +2.5%
3.23
US$28,873 		8,939 +2.5% 3.23 US$28,873
2022-08-24 2022-08-22 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
4,918 +1.4%
3.16
US$15,541 		4,918 +1.4% 3.16 US$15,541
2022-08-22 2022-08-19 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
9,608 +2.8%
3.28
US$31,514 		9,608 +2.8% 3.28 US$31,514
2022-08-22 2022-08-18 B Purchase
2.6
LOY BERTRAND
Non-Executive Director
1,151 +0.3%
3.19
US$3,672 		1,151 +0.3% 3.19 US$3,672
2022-08-18 2022-08-17 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
40,000 +1.8%
3.19
US$127,600 		40,000 +1.8% 3.19 US$127,600
2022-06-17 2022-06-15 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
30,000 +1.3%
3.71
US$111,300 		30,000 +1.3% 3.71 US$111,300
2022-05-10 2022-05-09 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
10,000 +0.4%
3.40
US$34,000 		10,000 +0.4% 3.40 US$34,000
2022-05-10 2022-05-06 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
30,000 +1.3%
3.78
US$113,400 		30,000 +1.3% 3.78 US$113,400
2021-05-25 2021-05-21 S Sale
3.0
Green James W

Chief Executive Officer

Executive Director
24,312 -1.1%
7.14
US$173,588 		24,312 -1.1% 7.14 US$173,588
2021-05-21 2021-05-20 S Sale
3.0
Green James W

Chief Executive Officer

Executive Director
14,876 -0.6%
7.03
US$104,578 		14,876 -0.6% 7.03 US$104,578
2021-05-21 2021-05-19 S Sale
3.0
Green James W

Chief Executive Officer

Executive Director
39,188 -1.7%
7.17
US$280,978 		39,188 -1.7% 7.17 US$280,978
2021-03-16 2021-03-12 S Sale
3.0
Green James W

Chief Executive Officer

Executive Director
35,000 -1.5%
5.98
US$209,300 		35,000 -1.5% 5.98 US$209,300
2020-06-16 2020-06-12 B Purchase
3.3
EDRICK ALAN I
Non-Executive Director
20,000 +42.1%
2.63
US$52,500 		20,000 +42.1% 2.63 US$52,500
2020-05-08 2020-05-07 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
10,000 +0.7%
2.53
US$25,300 		10,000 +0.7% 2.53 US$25,300
2019-11-13 2019-11-13 B Purchase LOY BERTRAND Non-Executive Director
6,100 +3.3%
2.52
US$15,372 		6,100 +3.3% 2.52 US$15,372
2019-11-13 2019-11-12 B Purchase LOY BERTRAND Non-Executive Director
10,579 +6.0%
2.51
US$26,553 		10,579 +6.0% 2.51 US$26,553
2019-11-13 2019-11-11 B Purchase LOY BERTRAND Non-Executive Director
12,855 +7.8%
2.59
US$33,294 		12,855 +7.8% 2.59 US$33,294
2019-11-13 2019-11-11 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
10,000 +0.7%
2.61
US$26,100 		10,000 +0.7% 2.61 US$26,100
2019-11-13 2019-11-08 B Purchase LOY BERTRAND Non-Executive Director
6,616 +4.2%
2.64
US$17,466 		6,616 +4.2% 2.64 US$17,466
2019-09-13 2019-09-13 B Purchase
2.6
LOY BERTRAND
7,372 +4.9%
3.11
US$22,927 		7,372 +4.9% 3.11 US$22,927
2019-09-13 2019-09-12 B Purchase
2.6
LOY BERTRAND
11,297 +8.1%
3.07
US$34,682 		11,297 +8.1% 3.07 US$34,682
2019-09-13 2019-09-11 B Purchase
2.6
LOY BERTRAND
15,590 +12.7%
3.01
US$46,926 		15,590 +12.7% 3.01 US$46,926
2019-08-20 2019-08-20 B Purchase Loewald Thomas W Non-Executive Director
20,000 +24.0%
2.53
US$50,524 		20,000 +24.0% 2.53 US$50,524
2019-08-19 2019-08-16 B Purchase
3.0
Green James W

Chief Executive Officer

Executive Director
10,000 +0.7%
2.49
US$24,850 		10,000 +0.7% 2.49 US$24,850
2019-08-12 2019-08-09 B Purchase Eade Katherine A. Non-Executive Director
39,915 +48.9%
2.48
US$98,830 		39,915 +48.9% 2.48 US$98,830
2019-04-12 2019-04-12 PlS Planned sale
Duchemin Jeffrey

Chief Executive Officer

Executive Director
400 -0.0%
4.65
US$1,860 		400 -0.0% 4.65 US$1,860
2019-04-12 2019-04-11 PlS Planned sale
Duchemin Jeffrey

Chief Executive Officer

Executive Director
12,425 -1.5%
4.51
US$56,037 		12,425 -1.5% 4.51 US$56,037
2019-04-12 2019-04-10 PlS Planned sale
Duchemin Jeffrey

Chief Executive Officer

Executive Director
6,332 -0.7%
4.50
US$28,494 		6,332 -0.7% 4.50 US$28,494
2018-08-30 2018-08-29 B Purchase Green James W Non-Executive Director
2,500 +1.6%
5.74
US$14,350 		2,500 +1.6% 5.74 US$14,350
2018-08-30 2018-08-29 S Sale
3.1
Gagnon Robert E.

Chief Financial Officer

Officer
8,889 -2.7%
5.77
US$51,290 		8,889 -2.7% 5.77 US$51,290
2018-08-09 2018-08-09 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
44,500 -5.3%
6.41
US$285,245 		44,500 -5.3% 6.41 US$285,245
2018-08-09 2018-08-08 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
5,500 -0.7%
6.35
US$34,925 		5,500 -0.7% 6.35 US$34,925
2018-08-09 2018-08-07 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
100,000 -11.2%
6.07
US$607,000 		100,000 -11.2% 6.07 US$607,000
2018-08-09 2018-08-07 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
100,015 -22.3%
6.08
US$608,091 		100,015 -22.3% 6.08 US$608,091
2018-07-31 2018-07-27 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
62,514 -14.7%
5.54
US$346,328 		62,514 -14.7% 5.54 US$346,328
2018-07-26 2018-07-24 PlS Planned sale
3.1
Gagnon Robert E.

Chief Financial Officer

Officer
5,570 -1.5%
5.25
US$29,242 		5,570 -1.5% 5.25 US$29,242
2018-07-23 2018-07-23 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
1,465 -0.4%
5.25
US$7,691 		1,465 -0.4% 5.25 US$7,691
2018-07-23 2018-07-19 PlS Planned sale
3.1
Gagnon Robert E.

Chief Financial Officer

Officer
1,100 -0.3%
5.25
US$5,775 		1,100 -0.3% 5.25 US$5,775
2018-07-16 2018-07-13 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
1,062 -0.3%
5.25
US$5,576 		1,062 -0.3% 5.25 US$5,576
2018-07-16 2018-07-12 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
9,145 -2.3%
5.25
US$48,011 		9,145 -2.3% 5.25 US$48,011
2018-07-11 2018-07-11 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
14,205 -1.8%
5.22
US$74,150 		14,205 -1.8% 5.22 US$74,150
2018-07-11 2018-07-11 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
141,300 -26.8%
5.23
US$738,999 		141,300 -26.8% 5.23 US$738,999
2018-07-11 2018-07-10 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
11,600 -1.4%
5.38
US$62,408 		11,600 -1.4% 5.38 US$62,408
2018-07-11 2018-07-10 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
13,700 -3.2%
5.38
US$73,706 		13,700 -3.2% 5.38 US$73,706
2018-07-11 2018-07-09 PlS Planned sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
14,195 -1.7%
5.41
US$76,795 		14,195 -1.7% 5.41 US$76,795
2018-07-11 2018-07-09 PlS Planned sale Gagnon Robert E.

Chief Financial Officer

Officer
14,200 -3.3%
5.41
US$76,822 		14,200 -3.3% 5.41 US$76,822
2018-03-15 2018-03-14 S Sale UVEGES GEORGE
22,250 -13.5%
4.58
US$101,905 		22,250 -13.5% 4.58 US$101,905
2018-03-12 2018-03-09 S Sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
7,800 -1.2%
4.60
US$35,880 		7,800 -1.2% 4.60 US$35,880
2018-03-12 2018-03-08 S Sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
79,222 -10.9%
4.52
US$358,083 		79,222 -10.9% 4.52 US$358,083
2018-03-12 2018-03-07 S Sale UVEGES GEORGE
35,054 -17.7%
4.61
US$161,599 		35,054 -17.7% 4.61 US$161,599
2018-03-12 2018-03-07 S Sale
3.1
Gagnon Robert E.

Chief Financial Officer
97,087 -21.3%
4.62
US$448,542 		97,087 -21.3% 4.62 US$448,542
2017-06-13 2017-06-12 S Sale Duchemin Jeffrey

Chief Executive Officer

Executive Director
22,000 -2.7%
2.66
US$58,520 		22,000 -2.7% 2.66 US$58,520
2017-06-13 2017-06-12 B Purchase Duchemin Jeffrey

Chief Executive Officer

Executive Director
22,000 +2.8%
2.76
US$60,720 		22,000 +2.8% 2.76 US$60,720
2017-06-09 2017-06-08 B Purchase Green James W
7,712 +7.5%
2.55
US$19,666 		7,712 +7.5% 2.55 US$19,666
2017-05-30 2017-05-26 B Purchase
3.1
Gagnon Robert E.

Chief Financial Officer

Officer
1,000 +0.2%
2.33
US$2,330 		1,000 +0.2% 2.33 US$2,330
2017-05-30 2017-05-25 B Purchase LEWIS EARL R Non-Executive Director
7,238 +1.6%
2.33
US$16,865 		7,238 +1.6% 2.33 US$16,865
2017-05-30 2017-05-25 B Purchase LEWIS EARL R Non-Executive Director
5,000 +1.1%
2.38
US$11,900 		5,000 +1.1% 2.38 US$11,900
2017-05-25 2017-05-24 B Purchase LEWIS EARL R Non-Executive Director
5,000 +1.2%
2.37
US$11,850 		5,000 +1.2% 2.37 US$11,850
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