Company · Ownership research

TENNANT CO TNC

CIK 0000097134

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 44 rows; the complete set is available through the API.

Insider filings on file run through Sep 23, 2026.

Insider purchases & sales

Purchased: $2.11M
Sold: $7.70M

Nov 1, 2023 – Sep 23, 2026
Available records · partial months are marked ·

202610 of 11 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Aug 31, 2026	ALLEN PATRICK E Director	Purchase	$208.25K 3,000 shares bought	155.68% added Direct holding	▾
Aug 12, 2026	Mulligan Donal L Director	Purchase	$538.72K 8,000 shares bought	100.00% added Trust holding	▾
Aug 12, 2026	Morse Timothy R. Director	Purchase	$102.27K 1,500 shares bought	16.46% added Direct holding	▾
May 7, 2026	Zay Richard H. CHIEF COMMERCIAL OFFICER	Sale	$605.10K 6,875 shares sold	19.99% sold Direct holding	▾
Mar 2, 2026	Glerum James T Jr. Director	Purchase	$499.98K 8,163 shares bought	1,867.96% added Direct holding	▾
Feb 27, 2026	Arvani Azita Director	Sale	$193.79K 3,156 shares sold	15.33% sold Direct holding	▾
Feb 27, 2026	Mulligan Donal L Director	Purchase	$184.83K 3,000 shares bought	60.00% added Trust holding	▾
Feb 26, 2026	Windley David Director	Sale	$235.90K 3,694 shares sold	33.23% sold Direct holding	▾
Feb 26, 2026	Huml David W. PRESIDENT AND CEO · Director	Purchase	$257.56K 4,000 shares bought	6.25% added Direct holding	▾
Feb 26, 2026	EICHER CAROL S Director	Sale	$194.00K 3,130 shares sold	9.79% sold Direct holding	▾

Showing 11 / 11 record groups in 2026. The complete set is available through the API.

TENNANT CO · TNC

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 11 of 11 purchase / sale groups and 30 of 44 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"TNC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.