HARVARD BIOSCIENCE INC
Total Trades
13
Buys
13
Sells
0
Largest Trade
$100K–$500K
Insiders
3
Institutional Funds
47
Inst. Value
$1M+
Activist Filings
31
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Green James W | CEO | BUY | $15K–$50K | 10K | $2.91 | Jun 14, 2024 |
| Green James W | CEO | BUY | $50K–$100K | 20K | $3.07 | Jun 7, 2024 |
| Green James W | CEO | BUY | $100K–$500K | 25K | $4.38 | Aug 21, 2023 |
| EDRICK ALAN I | Director | BUY | $50K–$100K | 30K | $2.64 | Mar 16, 2023 |
| Green James W | CEO | BUY | $100K–$500K | 40K | $2.63 | Mar 15, 2023 |
| Green James W | CEO | BUY | $50K–$100K | 30K | $2.51 | Dec 2, 2022 |
| LOY BERTRAND | Director | BUY | $15K–$50K | 9K | $3.41 | Aug 29, 2022 |
| LOY BERTRAND | Director | BUY | $50K–$100K | 26K | $3.27 | Aug 26, 2022 |
| LOY BERTRAND | Director | BUY | $15K–$50K | 14K | $3.21 | Aug 24, 2022 |
| LOY BERTRAND | Director | BUY | $15K–$50K | 11K | $3.27 | Aug 22, 2022 |
| Green James W | CEO | BUY | $100K–$500K | 40K | $3.19 | Aug 18, 2022 |
| Green James W | CEO | BUY | $100K–$500K | 30K | $3.71 | Jun 17, 2022 |
| Green James W | CEO | BUY | $100K–$500K | 40K | $3.69 | May 10, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 47 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WEBER CAPITAL MANAGEMENT LLC /ADV | 3.2M | $1M+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 1.8M | $1M+ | SH |
| VANGUARD GROUP INC | 1.6M | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 1.0M | $500K+ | SH |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 600K | $100K–$500K | SH |
| Portolan Capital Management, LLC | 410K | $100K–$500K | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 382K | $100K–$500K | SH |
| Williams & Novak, LLC | 349K | $100K–$500K | SH |
| JANE STREET GROUP, LLC | 209K | $100K–$500K | SH |
| CITIGROUP INC | 194K | $100K–$500K | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 185K | $100K–$500K | SH |
| STATE STREET CORP | 149K | $50K–$100K | SH |
| Assenagon Asset Management S.A. | 139K | $50K–$100K | SH |
| Bank of New York Mellon Corp | 122K | $50K–$100K | SH |
| Virtu Financial LLC | 60K | $15K–$50K | SH |
| GAMCO INVESTORS, INC. ET AL | 57K | $15K–$50K | SH |
| GOLDMAN SACHS GROUP INC | 50K | $15K–$50K | SH |
| Pasadena Private Wealth, LLC | 45K | $15K–$50K | SH |
| Legato Capital Management LLC | 43K | $15K–$50K | SH |
| GABELLI FUNDS LLC | 39K | $15K–$50K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 12, 2026
7.6%
3.4M shares
SC 13G/A · Nov 3, 2025
7.5%
3.4M shares
SC 13G/A · Aug 7, 2025
9.2%
4.0M shares
SC 13G/A · Jul 18, 2025
2.5%
1.1M shares
SC 13G/A · May 30, 2025
8.1%
3.6M shares
SC 13G/A · May 15, 2025
5.0%
2.2M shares
SC 13G/A · May 14, 2025
9.8%
4.3M shares
SC 13G/A · May 8, 2025
7.3%
3.2M shares
SC 13G/A · Apr 8, 2025
8.6%
3.8M shares
Punch & Associates Investment Management, Inc.
SC 13G/A · Apr 7, 2025
0.1%
26K shares
SC 13G · Mar 17, 2025
7.5%
3.3M shares
SC 13G · Feb 10, 2025
5.8%
2.5M shares
SC 13G/A · Feb 4, 2025
4.9%
2.1M shares
SC 13G/A · Nov 14, 2024
3.6%
1.6M shares
SC 13G · Mar 19, 2024
5.3%
2.3M shares
SC 13G/A · Feb 14, 2024
6.0%
2.6M shares
SC 13G/A · Feb 14, 2024
6.8%
2.9M shares
SC 13G/A · Feb 14, 2024
6.9%
2.9M shares
SC 13G · Jan 26, 2024
6.8%
2.9M shares
SC 13G/A · Jan 22, 2024
4.9%
2.1M shares
SC 13G · Aug 28, 2023
5.1%
2.2M shares
SC 13G/A · Feb 16, 2023
7.8%
3.3M shares
SC 13G · Feb 15, 2023
7.8%
3.3M shares
SC 13G · Feb 14, 2023
7.0%
2.9M shares
SC 13G/A · Feb 13, 2023
6.6%
2.8M shares
Portolan Capital Management, LLC
SC 13G/A · Feb 13, 2023
2.5%
1.1M shares
SC 13G/A · Jan 11, 2023
4.9%
2.1M shares
SC 13G · Dec 21, 2022
5.4%
2.3M shares
SC 13G · Jul 8, 2022
2.9%
1.2M shares
SC 13G · Feb 14, 2022
5.3%
2.2M shares
Portolan Capital Management, LLC
SC 13G/A · Feb 11, 2022
6.2%
2.5M shares