Harte Hanks

HHS on Nasdaq. Market value $34m.

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Who owns it

1 long-term investor we follow owns it, unchanged from 1 last quarter. 22 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

3 investors own more than 5%.

  • Gary S. Rosenbach
    Passive investor
    28.8%
    Since 17 April 2023
    What they said

    The Reporting Person acquired the securities reported herein because he believed the securities represented an attractive investment opportunity. The securities reported herein were not acquired and are not held for the purpose of or with the effect of changing or influencing…

    Read the filing
  • Radoff Bradley Louis
    Insider or founder
    5.7%
    Since 14 August 2026
    What they said

    Item 4 is hereby amended to add the following: On August 14, 2026, the Issuer, Star Equity Holdings, Inc., a Delaware corporation ("Star"), and Merger Sub - R, Inc., a Delaware corporation and a wholly owned subsidiary of Star ("Merger Sub"), entered into an Agreement and Plan…

    Read the filing
  • Kent Lake PR LLC
    Passive investor
    at least 2.5%
    (filed with 2 related holders)
    Since 31 December 2024
  • Sold down below 5%
    Since 19 August 2026

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

No insider bought or sold on the open market in the last 12 months.

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 17 Mar 2026, plus the 10-Q filed 14 Aug 2026 and 5 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.