Insider Trading & Ownership of Mark W. Sheahan

Location
Minneapolis, MN
Summary
The estimated net worth of Mark W. Sheahan is at least $10,980,160 dollars as of 11 May 2026. Mark W. Sheahan is the President and CEO, Director of GRACO INC and owns shares of GRACO INC (GGG) stock worth about $10.69M. Mark W. Sheahan is the Director of TENNANT CO and owns shares of TENNANT CO (TNC) stock worth about $288.7K.
Signature
/s/ Kristin A. Erickson on behalf of Mark W. Sheahan
All Insider Reports
All Insider Reports

Follow Filing Activity

Follow Mark W. Sheahan and return when a new Insider Trading filing changes the record on this page.

This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean. If you create an account from here, we will bring you back after verification.

Create free account and return here Already have an account? Sign in and return here

Quick Takeaways

  • Mark W. Sheahan has 2 issuer positions tracked on this page.
  • Estimated disclosed ownership value: $10,980,160.
  • Recent insider filing activity is available below.

What Changed

  • Largest disclosed position: GRACO INC ($10,691,453).
  • Past-year value change for that position: .

Why This Matters

  • This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
  • You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of Mark W. Sheahan

TNC Forms 3/4/5

TENNANT CO

Relationship
Director
Holdings value
$288,707
Past year net change
Change %
Report period
07 May 2026

Insider Transactions Reported by Mark W. Sheahan:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Here you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .