TNC

TENNANT CO

Industrials Refrigeration & Service Industry Machinery Market cap: $1.1B All insider activity → Quote and statistics → Sign in to watch TNC Sign in to set a price alert

AI summary Multiple directors purchase shares on the open market in August 2026.

Insider Score Band below 60

Research score: 49
AI adjustment: +5

Research score, not a recommendation.

Total bought$849.2K3 Form 4 purchases

Distinct insiders3open-market buyers

Lead insiderMulligan Donal LDirector

Cluster window2026-08-12 → 2026-08-31active

Market data

Live quote and chart from Yahoo Finance, loaded through this server. Insider purchases are marked on the chart.

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Why this score

Research score: a weighted blend of the five factors, times the routine and offering discounts, minus the selling penalty.

Breadth number & diversity of participating insiders

37%

Seniority executive rank of buyers (CEO/CFO/Director)

60%

Commitment purchase size relative to company & holdings

77%

Context buying into stock weakness signals conviction

70%

Timing coordinated purchases within a tight window

80%

Routine-purchase discount × 1.00

Company-type / offering discount × 1.00

Net insider selling penalty − 0

Why are they buying?

AI · discretionary · catalyst none · documented

No specific operational or financial catalyst was disclosed in filings or news during this period to explain the timing of these open-market purchases.

Directors Timothy R. Morse, Donal L. Mulligan, and Patrick E. Allen acquired shares between $67.34 and $69.42 per share following the company's Q2 earnings and CFO retirement announcement in late July/early August 2026.

Filing references and sources

Tennant Company Announces Retirement of Fay West, Senior Vice President, Chief Financial Officer (opens in a new tab)

Stock Price & Insider Purchase History

Daily close price with open-market insider purchases plotted over time

Loading price history…

Transactions

3 Form 4 trades · 3 insiders Sign in to download CSV

Purchases in this cluster, grouped by insider, largest first
Date	Insider	Role	Shares	Price	Value	Filing
2026-08-12	Mulligan Donal L history of Mulligan Donal L's purchases	Director	8,000	$67.34	$538.7K	SEC filing for Mulligan Donal L (opens in a new tab)
2026-08-31	ALLEN PATRICK E history of ALLEN PATRICK E's purchases	Director	3,000	$69.42	$208.3K	SEC filing for ALLEN PATRICK E (opens in a new tab)
2026-08-12	Morse Timothy R. history of Morse Timothy R.'s purchases	Director	1,500	$68.18	$102.3K	SEC filing for Morse Timothy R. (opens in a new tab)
Total					$849.2K

Other buying runs at TNC

A run ends after a pause in the buying, so one company can have several. Returns are the stock's return minus its benchmark's (IWM for small companies, SPY otherwise), from the first open after the run became a cluster. Past results, not a forecast.

After this run became a cluster: 21 days –63 days –126 days –

Other insider buying runs at this company, newest first, with the return against the benchmark that followed
Window	Insiders	Total	Score	21 days	63 days	126 days	Status
2026-02-26 → 2026-03-02	3	$1.3M	66	+14.2%	+25.3%	-1.0%	closed