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HARVARD BIOSCIENCE INC

HBIO Clue Score31
United States Fiscal year ends December CIK 0001123494
$8.24 +1.35% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
8.24 on 9 Oct 2026
9 4 0 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $0.42 14 Oct 2025 $0.42 15 Oct 2025 $0.42 16 Oct 2025 $0.40 17 Oct 2025 $0.38 20 Oct 2025 $0.40 21 Oct 2025 $0.41 22 Oct 2025 $0.40 23 Oct 2025 $0.40 24 Oct 2025 $0.41 27 Oct 2025 $0.40 28 Oct 2025 $0.40 29 Oct 2025 $0.45 30 Oct 2025 $0.63 31 Oct 2025 $0.52 3 Nov 2025 $0.57 4 Nov 2025 $0.62 5 Nov 2025 $0.59 6 Nov 2025 $0.55 7 Nov 2025 $0.54 10 Nov 2025 $0.58 11 Nov 2025 $0.61 12 Nov 2025 $0.62 13 Nov 2025 $0.58 14 Nov 2025 $0.66 17 Nov 2025 $0.67 18 Nov 2025 $0.64 19 Nov 2025 $0.62 20 Nov 2025 $0.56 21 Nov 2025 $0.63 24 Nov 2025 $0.64 25 Nov 2025 $0.74 26 Nov 2025 $0.75 28 Nov 2025 $0.76 1 Dec 2025 $0.77 2 Dec 2025 $0.72 3 Dec 2025 $0.73 4 Dec 2025 $0.72 5 Dec 2025 $0.76 8 Dec 2025 $0.76 9 Dec 2025 $0.72 10 Dec 2025 $0.76 11 Dec 2025 $0.74 12 Dec 2025 $0.74 15 Dec 2025 $0.70 16 Dec 2025 $0.70 17 Dec 2025 $0.79 18 Dec 2025 $0.77 19 Dec 2025 $0.75 22 Dec 2025 $0.75 23 Dec 2025 $0.72 24 Dec 2025 $0.73 26 Dec 2025 $0.70 29 Dec 2025 $0.66 30 Dec 2025 $0.66 31 Dec 2025 $0.67 2 Jan 2026 $0.65 5 Jan 2026 $0.68 6 Jan 2026 $0.69 7 Jan 2026 $0.67 8 Jan 2026 $0.65 9 Jan 2026 $0.63 12 Jan 2026 $0.62 13 Jan 2026 $0.59 14 Jan 2026 $0.57 15 Jan 2026 $0.58 16 Jan 2026 $0.59 20 Jan 2026 $0.58 21 Jan 2026 $0.59 22 Jan 2026 $0.62 23 Jan 2026 $0.59 26 Jan 2026 $0.58 27 Jan 2026 $0.59 28 Jan 2026 $0.57 29 Jan 2026 $0.54 30 Jan 2026 $0.50 2 Feb 2026 $0.50 3 Feb 2026 $0.50 4 Feb 2026 $0.51 5 Feb 2026 $0.47 6 Feb 2026 $0.50 9 Feb 2026 $0.53 10 Feb 2026 $0.60 11 Feb 2026 $0.54 12 Feb 2026 $0.56 13 Feb 2026 $0.55 17 Feb 2026 $0.60 18 Feb 2026 $0.59 19 Feb 2026 $0.59 20 Feb 2026 $0.58 23 Feb 2026 $0.57 24 Feb 2026 $0.58 25 Feb 2026 $0.60 26 Feb 2026 $0.60 27 Feb 2026 $0.61 2 Mar 2026 $0.59 3 Mar 2026 $0.57 4 Mar 2026 $0.57 5 Mar 2026 $0.57 6 Mar 2026 $0.55 9 Mar 2026 $0.49 10 Mar 2026 $0.53 11 Mar 2026 $0.51 12 Mar 2026 $0.49 13 Mar 2026 $0.47 16 Mar 2026 $5.01 17 Mar 2026 $4.87 18 Mar 2026 $4.88 19 Mar 2026 $5.60 20 Mar 2026 $5.27 23 Mar 2026 $5.34 24 Mar 2026 $5.13 25 Mar 2026 $5.13 26 Mar 2026 $5.07 27 Mar 2026 $4.87 30 Mar 2026 $4.66 31 Mar 2026 $4.87 1 Apr 2026 $5.09 2 Apr 2026 $5.20 6 Apr 2026 $5.53 7 Apr 2026 $5.40 8 Apr 2026 $5.55 9 Apr 2026 $5.37 10 Apr 2026 $4.31 13 Apr 2026 $4.66 14 Apr 2026 $4.91 15 Apr 2026 $5.74 16 Apr 2026 $5.91 17 Apr 2026 $6.13 20 Apr 2026 $6.99 21 Apr 2026 $6.56 22 Apr 2026 $6.69 23 Apr 2026 $6.78 24 Apr 2026 $6.86 27 Apr 2026 $6.83 28 Apr 2026 $6.45 29 Apr 2026 $6.13 30 Apr 2026 $6.38 1 May 2026 $6.36 4 May 2026 $6.40 5 May 2026 $6.63 6 May 2026 $7.24 7 May 2026 $6.79 8 May 2026 $6.90 11 May 2026 $6.84 12 May 2026 $5.41 13 May 2026 $5.57 14 May 2026 $5.52 15 May 2026 $5.25 18 May 2026 $5.00 19 May 2026 $5.01 20 May 2026 $5.40 21 May 2026 $5.52 22 May 2026 $5.59 26 May 2026 $5.68 27 May 2026 $5.78 28 May 2026 $5.95 29 May 2026 $5.88 1 Jun 2026 $6.40 2 Jun 2026 $6.46 3 Jun 2026 $6.50 4 Jun 2026 $6.48 5 Jun 2026 $6.20 8 Jun 2026 $6.01 9 Jun 2026 $6.04 10 Jun 2026 $6.20 11 Jun 2026 $6.64 12 Jun 2026 $6.08 15 Jun 2026 $5.99 16 Jun 2026 $5.95 17 Jun 2026 $6.00 18 Jun 2026 $5.87 22 Jun 2026 $6.06 23 Jun 2026 $6.01 24 Jun 2026 $6.08 25 Jun 2026 $5.96 26 Jun 2026 $6.04 29 Jun 2026 $6.13 30 Jun 2026 $6.15 1 Jul 2026 $6.05 2 Jul 2026 $6.15 6 Jul 2026 $6.35 7 Jul 2026 $6.63 8 Jul 2026 $6.28 9 Jul 2026 $6.23 10 Jul 2026 $6.14 13 Jul 2026 $6.12 14 Jul 2026 $5.93 15 Jul 2026 $6.03 16 Jul 2026 $5.95 17 Jul 2026 $6.23 20 Jul 2026 $6.11 21 Jul 2026 $6.04 22 Jul 2026 $6.13 23 Jul 2026 $6.19 24 Jul 2026 $6.00 27 Jul 2026 $5.99 28 Jul 2026 $5.92 29 Jul 2026 $6.12 30 Jul 2026 $6.09 31 Jul 2026 $6.10 3 Aug 2026 $6.31 4 Aug 2026 $6.31 5 Aug 2026 $6.37 6 Aug 2026 $6.19 7 Aug 2026 $6.47 10 Aug 2026 $6.39 11 Aug 2026 $6.13 12 Aug 2026 $6.17 13 Aug 2026 $6.67 14 Aug 2026 $6.66 17 Aug 2026 $6.50 18 Aug 2026 $6.97 19 Aug 2026 $7.08 20 Aug 2026 $7.55 21 Aug 2026 $7.48 24 Aug 2026 $7.55 25 Aug 2026 $7.58 26 Aug 2026 $7.65 27 Aug 2026 $7.90 28 Aug 2026 $7.93 31 Aug 2026 $8.11 1 Sep 2026 $8.04 2 Sep 2026 $8.20 3 Sep 2026 $8.00 4 Sep 2026 $8.02 8 Sep 2026 $7.95 9 Sep 2026 $7.95 10 Sep 2026 $8.15 11 Sep 2026 $8.03 14 Sep 2026 $8.09 15 Sep 2026 $8.00 16 Sep 2026 $7.97 17 Sep 2026 $8.03 18 Sep 2026 $7.95 21 Sep 2026 $8.00 22 Sep 2026 $7.92 23 Sep 2026 $8.05 24 Sep 2026 $8.02 25 Sep 2026 $7.96 28 Sep 2026 $7.98 29 Sep 2026 $7.96 30 Sep 2026 $7.92 1 Oct 2026 $8.13 2 Oct 2026 $8.34 5 Oct 2026 $8.50 6 Oct 2026 $8.56 7 Oct 2026 $8.50 8 Oct 2026 $8.13 9 Oct 2026 $8.24 Frost Mark T Chief Financial Officer Bought $25.00K 16 Mar 2026 · at $5.00 · 40.0% of stake Duke John D Chief Executive Officer Bought $25.05K 16 Mar 2026 · at $5.01 · 5.0% of stake Snider William Director Bought $62.50K 16 Mar 2026 · at $4.99 · 114% of stake Snider William Director Bought $41.10K 17 Mar 2026 · at $4.85 · 36.0% of stake DENELSKY STEPHEN J Director Bought $48.70K 17 Mar 2026 · at $4.87 · 90.9% of stake
5 buys0 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$86.55M
Net income
$56.70M
Free cash flow
$5.47M
Gross margin
57.7%
Operating margin
-56.1%
Net margin
-65.5%
Return on equity
-412.8%
Return on capital
-77.4%
Debt to equity
2.61
Revenue growth, 1 yr
-8.1%
Revenue growth, 5 yr
-3.3% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
102M -8M FY20 Fiscal year 2020 Revenue $102.10M Net income $7.81M Margin -7.6% 119M -288K FY21 Fiscal year 2021 Revenue $118.90M Net income $288.00K Margin -0.2% · growth +16.5% 113M -10M FY22 Fiscal year 2022 Revenue $113.34M Net income $9.52M Margin -8.4% · growth -4.7% 112M -3M FY23 Fiscal year 2023 Revenue $112.25M Net income $3.42M Margin -3.0% · growth -1.0% 94M -12M FY24 Fiscal year 2024 Revenue $94.14M Net income $12.41M Margin -13.2% · growth -16.1% 87M -57M FY25 Fiscal year 2025 Revenue $86.55M Net income $56.70M Margin -65.5% · growth -8.1%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
17 Mar 2026 DENELSKY STEPHEN J
Director
Bought $48.70K 90.9%
17 Mar 2026 Snider William
Director
Bought $41.10K 36.0%
16 Mar 2026 Snider William
Director
Bought $62.50K 114%
16 Mar 2026 Duke John D
Chief Executive Officer
Bought $25.05K 5.0%
16 Mar 2026 Frost Mark T
Chief Financial Officer
Bought $25.00K 40.0%
13 Jun 2024 Green James W
Chief Executive Officer
Bought $29.10K 0.3%