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HARVARD BIO (HBIO)
NASDAQ
$5.93-$0.13 (-2.13%)
Price as of Jun 23, 2026 6:28 PM EDT- $27.3MMarket Cap
- 17.87%1-Year Change
- Medical Instruments & SuppliesIndustry
HARVARD BIO (HBIO)
$5.93-$0.13 (-2.13%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
AMH EQUITY LTD | 89.74% | 4.0M | +538,832 (+13.31%) | Sep 30, 2025 |
BLACKROCK FUNDING, INC. /DE | 66.10% | 3.0M | +65,235 (+2.19%) | Dec 31, 2024 |
BLACKROCK INC. | 63.05% | 2.8M | +9,986 (+0.35%) | Jun 30, 2024 |
VANGUARD GROUP INC | 42.64% | 1.9M | +71,429 (+3.71%) | Dec 31, 2025 |
ROYCE & ASSOCIATES LLC | 40.20% | 1.8M | -5,160 (-0.28%) | Dec 31, 2021 |
GRANAHAN INVESTMENT MANAGEMENT INC/MA | 36.76% | 1.7M | +78,168 (+4.72%) | Dec 31, 2021 |
COLUMBIA THREADNEEDLE MANAGEMENT LTD | 27.20% | 1.2M | +1.2M (+100.00%) | Sep 30, 2004 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 36.21% | 1.6M | 0 (0.00%) | Mar 31, 2026 |
HEARTLAND GROUP INC | 24.58% | 1.1M | 0 (0.00%) | Mar 31, 2026 |
ROYCE MICRO-CAP TRUST, INC. | 19.34% | 872,055 | 0 (0.00%) | Mar 31, 2026 |
ROYCE FUND | 14.35% | 647,017 | 0 (0.00%) | Mar 31, 2026 |
FIDELITY SALEM STREET TRUST | 9.10% | 410,509 | 0 (0.00%) | Mar 31, 2026 |
SEI INSTITUTIONAL MANAGED TRUST | 7.65% | 345,143 | 0 (0.00%) | Mar 31, 2026 |
Fidelity Rutland Square Trust II | 7.63% | 344,113 | 0 (0.00%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions500.6M (79.12%)
- Mutual Funds117.3M (18.53%)
- Insiders14.8M (2.34%)
- Other0 (0.00%)
Insider Transactions
- 2.34% (14.8M)Current InsiderOwnership (%, shares)
- 4Number of InsiderBuying (last 12 months)
- $786,056.25Amount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
DENELSKY STEPHEN J | Award | Jun 09, 2026 | $0.00 | 16,556 | $0.00 | 37,556 |
Snider William | Award | Jun 09, 2026 | $0.00 | 16,556 | $0.00 | 48,556 |
Duke John D Chief Executive Officer | Award | Mar 20, 2026 | $0.00 | 75,000 | $0.00 | 180,000 |
DENELSKY STEPHEN J | Buy | Mar 17, 2026 | $48,700.00 | 10,000 | $4.87 | 21,000 |
Snider William | Buy | Mar 17, 2026 | $41,103.75 | 8,475 | $4.85 | 32,000 |
Frost Mark T Chief Financial Officer | Buy | Mar 16, 2026 | $25,000.00 | 5,000 | $5.00 | 17,500 |
Duke John D Chief Executive Officer | Buy | Mar 16, 2026 | $25,050.00 | 5,000 | $5.01 | 105,000 |
Snider William | Buy | Mar 16, 2026 | $62,499.75 | 12,525 | $4.99 | 23,525 |
Snider William | Award | Dec 17, 2025 | $0.00 | 110,000 | $0.00 | 110,000 |
Duke John D Chief Executive Officer | Award | Aug 08, 2025 | $0.00 | 500,000 | $0.00 | 500,000 |
Duke John D Chief Executive Officer | Award | Aug 08, 2025 | $0.00 | 500,000 | $0.00 | 1.0M |
Gagnon Robert E. | Award | Jul 16, 2025 | $0.00 | 110,000 | $0.00 | 110,000 |
Eade Katherine A. | Award | Jul 16, 2025 | $0.00 | 110,000 | $0.00 | 421,126 |
Green James W Chief Executive Officer | In Kind | Mar 19, 2025 | $26,451.19 | 38,413 | $0.69 | 2.8M |
Cote Jennifer Chief Financial Officer | In Kind | Mar 19, 2025 | $3,916.07 | 5,687 | $0.69 | 159,019 |
Green James W Chief Executive Officer | In Kind | Dec 29, 2024 | $112,691.70 | 56,915 | $1.98 | 3.1M |
Cote Jennifer Chief Financial Officer | In Kind | Dec 29, 2024 | $9,367.38 | 4,731 | $1.98 | 164,007 |
Green James W Chief Executive Officer | In Kind | Dec 29, 2024 | $50,113.80 | 25,310 | $1.98 | 3.0M |
Cote Jennifer Chief Financial Officer | In Kind | Dec 29, 2024 | $7,518.06 | 3,797 | $1.98 | 160,210 |