SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

HBIO

Harvard Bioscience, Inc.
NASDAQHealth Care

Latest close: 8.09 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Aug 11, 2026Quarterly report · 10-QFiled by the company itself.Open the filing ↗
  2. Aug 11, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Aug 11, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record1,21818 flagged findings
Reported transactions (Form 4)40since Mar 5, 2024 · and 3 other holdings
Corporate events (8-K)30since Jan 28, 2022

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

What the company does

Harvard Bioscience is a global developer, manufacturer and marketer of life sciences equipment to support research and drug discovery. It is traded on NASDAQ under the stock symbol HBIO.

Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-12listing compliance noticerecentOpen filing ↗
    “…future, we could be delisted from Nasdaq, which would negatively impact our business, our ability to raise capital, and the market…”
    +1 more passage from the same document
    • “…capital, and the market price and liquidity of our common stock. The Nasdaq Stock Market LLC (“Nasdaq”) Listing Rule 5450(a)(1)…”
  • 2026-05-12reverse splitrecentOpen filing ↗
    “…shares issued and outstanding at December 31, 2025; 447 447 Additional paid-in-capital 240,046 239,669 Accumulated deficit (…”
    +1 more passage from the same document
    • “…the accompanying unaudited consolidated financial statements are set forth in Note 2 to the consolidated financial…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

Listing notice in force

The exchange has notified the company that it fails a continued-listing requirement (8-K, item 3.01 of Oct 3, 2025).

Deadline: Mar 30, 2026 · passed

  • unspecified type · Nasdaq, rule 5550(a)(2) · notice of Oct 2, 2025 · extension granted · deadline Mar 30, 2026 (extension per the text) · period exhausted with no cure or delisting on record

Open the 8-K at the SEC

Reverse splits in 5 years

1 reverse split in 5 years (1:10 on Mar 16, 2026) · 1:10 cumulative

The other times: of 818 securities that did their first reverse split in 5 years, a year later the median was worth 0.53× the price on the day of the split; 382 lost more than half and 209 rose (809 with a price a year later).

Our own series, not the whole market: based on the splits we have on record (provider and SEC); an unrecorded one does not count. Historical distribution, not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 1,218)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Sep 22, 26SCHEDULE 13G/A ↗Passive stake · Leviticus Partners LP · 5.2% · event on Sep 14, 26 · amendment
  • Aug 11, 2610-Q ↗Quarterly report
  • Aug 11, 268-K ↗Current report · Communication to the market
  • Aug 11, 268-K ↗Current report · Results
  • Insider transaction · 5 Form 4 filingsshow all 5hide
  • Jun 2, 268-K ↗Current report · A senior executive left or was appointed
  • May 14, 26SCHEDULE 13G/A ↗Passive stake · Leviticus Partners LP · 6.5% · event on May 12, 25 · amendment
  • May 12, 2610-Q ↗Quarterly report
  • May 12, 268-K ↗Current report · Communication to the market
  • May 12, 268-K ↗Current report · Results
  • Apr 21, 26DEFA14A ↗Shareholder meeting and votes
  • Apr 21, 26DEF 14A ↗Shareholder meeting and votes
  • Insider transaction · 3 Form 4 filingsshow all 3hide
  • Mar 23, 26SCHEDULE 13D ↗Stake with intent to influence · William Snider · 16.0% · event on Dec 17, 25
  • Insider transaction · 3 Form 4 filingsshow all 3hide
  • Mar 17, 268-K ↗Current report · Communication to the market
  • Mar 13, 2610-K ↗Annual report

1,218 filings on record, the oldest from Jan 3, 01.

Listing the 25 most recent filings of the 1,218 on record.

8-Ks, explained

Stress15Structure48Governance53
  • Jun 2, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Mar 10, 26GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Jan 29, 26StressRestructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
  • Dec 17, 25StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗
  • Oct 3, 25StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Sep 9, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Aug 13, 25GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Aug 11, 25StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Jul 17, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Jun 27, 25StressListing notice (8-K 3.01)+1 more in the same filing8-K/A 3.01 ↗
  • Jun 23, 25StressListing notice (8-K 3.01)+1 more in the same filing8-K 3.01 ↗
  • Governance3 senior executive changes2025show all 3hide
    • Jun 13, 25GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
    • Jun 2, 25GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
    • Apr 16, 25GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗

12 older filings not shown · The record reaches back to Sep 3, 04.

Notable in the record

Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.

  • Apr 10, 25StressListing notice (8-K 3.01)+3 more in the same filing8-K 3.01 ↗
  • Dec 23, 19StressRestructuring plan with committed costs8-K 2.05 ↗
  • Mar 17, 16StressListing notice (8-K 3.01)+1 more in the same filing8-K 3.01 ↗
  • Oct 29, 15StressRestructuring plan with committed costs+3 more in the same filing8-K 2.05 ↗
  • Dec 4, 13StressRestructuring plan with committed costs+1 more in the same filing8-K 2.05 ↗
  • Mar 2, 06StressPast accounts declared unreliable and being restated+2 more in the same filing8-K 4.02 ↗

The full record holds 15 stress filings.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13D: stake and stated purpose

Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.

  • William Snider16.0%Dec 17, 25SCHEDULE 13D ↗4 co-filers on this document — the figure is the largest single stake, not their sum.

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Mar 17, 26Buy$41KWilliam Snider↗
  • Mar 17, 26Buy$49KSTEPHEN J DENELSKY↗
  • Mar 16, 26Buy$25KMark T FrostChief Financial Officer↗
  • Mar 16, 26Buy$25KJohn D DukeChief Executive Officer↗
  • Mar 16, 26Buy$62KWilliam Snider↗
  • Jun 13, 24Buy$29KJames W GreenChief Executive Officer↗
  • Jun 6, 24Buy$61KJames W GreenChief Executive Officer↗
Stock compensation, tax and giftsshow the 33 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Jun 9, 26Compensationamount n/aRobert E. Gagnon↗
  • Jun 9, 26Compensationamount n/aSTEPHEN J DENELSKY↗
  • Jun 9, 26Compensationamount n/aWilliam Snider↗
  • Jun 9, 26Compensationamount n/aKatherine A. Eade↗
  • Mar 20, 26Compensationamount n/aMark T FrostChief Financial Officer↗
  • Mar 20, 26Compensationamount n/aJohn D DukeChief Executive Officer↗
  • Dec 17, 25Compensationamount n/aWilliam Snider↗
  • Sep 5, 25Compensationamount n/aSTEPHEN J DENELSKY↗
  • Aug 15, 25Otheramount n/aJames W Green↗
  • Aug 15, 25Tax$18KJames W Green↗
  • Aug 15, 25Otheramount n/aJames W Green↗
  • Aug 15, 25Tax$6KJames W Green↗
  • Aug 15, 25Otheramount n/aJames W Green↗
  • Aug 15, 25Otheramount n/aJames W Green↗
  • Aug 8, 25Compensationamount n/aJohn D DukeChief Executive Officer↗
  • Aug 8, 25Compensationamount n/aJohn D DukeChief Executive Officer↗
  • Jul 16, 25Compensationamount n/aRobert E. Gagnon↗
  • Jul 16, 25Compensationamount n/aKatherine A. Eade↗
  • May 12, 25Compensationamount n/aMark T FrostInterim CFO↗
  • Mar 19, 25Tax$26KJames W GreenChief Executive Officer↗
  • Mar 19, 25Tax$4KJennifer CoteChief Financial Officer↗
  • Dec 31, 24Otheramount n/aJames W GreenChief Executive Officer↗
  • Dec 29, 24Tax$9KJennifer CoteChief Financial Officer↗
  • Dec 29, 24Tax$8KJennifer CoteChief Financial Officer↗
  • Dec 29, 24Tax$113KJames W GreenChief Executive Officer↗
  • Dec 29, 24Tax$50KJames W GreenChief Executive Officer↗
  • May 21, 24Compensationamount n/aALAN I EDRICK↗
  • May 21, 24Compensationamount n/aKatherine A. Eade↗
  • May 21, 24Compensationamount n/aThomas W Loewald↗
  • May 21, 24Compensationamount n/aBERTRAND LOY↗
  • Mar 6, 24Tax$41KJennifer CoteChief Financial Officer↗
  • Mar 5, 24Compensationamount n/aJames W GreenChief Executive Officer↗
  • Mar 5, 24Compensationamount n/aJames W GreenChief Executive Officer↗

The full record holds 71 transactions and goes back to Dec 29, 22.

Its sector and its market

Harvard Bioscience, Inc. among Health Care companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
1,218 documents on file, from Jan 3, 2001 to Sep 22, 2026.
Company description
Wikipedia, read on Sep 3, 2026.
This page
Generated on Oct 19, 2026; refreshed through the day.

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No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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