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Harvard Bioscience, Inc. (HBIO) short interest & options flow

NASDAQ

Harvard Bioscience heads into next week's earnings call with one genuinely interesting story playing out beneath the surface: insiders stepped in to buy their own stock six weeks ago, the stock has since rallied hard, and short sellers have scrambled back in — all ahead of a Q1 print now rescheduled for May 12. The insider activity is worth dwelling on. In mid-March, with the stock…

$9.68+4.54% 1d+12.43% 1w+17.48% 1mClose: 11 Nov 2026

Short interest % of float: Low; Live SI on ORTEX →
Cost to borrow: Low and dropping; Live CTB on ORTEX →
Availability: High; Live availability on ORTEX →

Market cap: $45M
Next earnings: 10 Mar 2027

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Key data as of 12 Nov 2026

ORTEX chart of Harvard Bioscience, Inc. (HBIO) share price and short interest (% of free float), six months to November 11, 2026

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