Tennant Company (TNC) Insider Trading

Cluster buy

3 insiders bought $849k of their own stock in 20 days.

Open-market purchases by executives and directors between Aug 12 and Aug 31. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

+$882k

6 buys · 4 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

5 / 4

executives and directors

Last open-market buy

Aug 2026

Aug 31, 2026

Get an email when TNC's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 31	Patrick E Allen Director	Bought	3,000	$69.42	$208k	156%	Form 4
Aug 12	Donal L Mulligan Director	Bought	8,000	$67.34	$539k	27%	Form 4
Aug 12	Timothy R. Morse Director	Bought	1,500	$68.18	$102k	16%	Form 4
May 7	Richard H. Zay CHIEF COMMERCIAL OFFICER	SoldNo plan	6,875	$88.02	$605k	20%	Form 4
Mar 2	James T Glerum Jr. Director	Bought	8,163	$61.25	$500k	1868%	Form 4
Feb 27	Azita Arvani Director	SoldNo plan	3,156	$61.40	$194k	15%	Form 4
Feb 26 – 27	Donal L Mulligan Director	Bought 2 parts	8,000	$63.02 average	$504k	41%	Form 4
Feb 26	David Windley Director	SoldNo plan	3,694	$63.86	$236k	33%	Form 4
Feb 26	David W. Huml PRESIDENT AND CEO	Bought 3 parts	4,000	$64.39 average	$258k	2.9%	Form 4
Feb 26	Carol S Eicher Director	SoldNo plan	3,130	$61.98	$194k	9.8%	Form 4
Aug 19, 2025	Richard H. Zay CHIEF COMMERCIAL OFFICER	SoldNo plan	4,042	$83.21	$336k	16%	Form 4
Feb 28, 2025	Azita Arvani Director	SoldNo plan	2,358	$85.22	$201k	13%	Form 4
Feb 28, 2025	Barb Balinski SVP, Chief Transf Officer	SoldNo plan	1,717	$86.42	$148k	13%	Form 4
Feb 24, 2025	Richard H. Zay CHIEF COMMERCIAL OFFICER	SoldNo plan	7,053	$87.58	$618k	21%	Form 4

Aug 31
Patrick E Allen
Director · bought 3,000 at $69.42
$208k
156% of stake
Aug 12
Donal L Mulligan
Director · bought 8,000 at $67.34
$539k
27% of stake
Aug 12
Timothy R. Morse
Director · bought 1,500 at $68.18
$102k
16% of stake
May 7No plan
Richard H. Zay
CHIEF COMMERCIAL OFFICER · sold 6,875 at $88.02
$605k
20% of stake
Mar 2
James T Glerum Jr.
Director · bought 8,163 at $61.25
$500k
1868% of stake
Feb 27No plan
Azita Arvani
Director · sold 3,156 at $61.40
$194k
15% of stake
Feb 26 – 27
Donal L Mulligan
Director · bought 8,000 at avg $63.02
$504k
41% of stake
Feb 26No plan
David Windley
Director · sold 3,694 at $63.86
$236k
33% of stake
Feb 26
David W. Huml
PRESIDENT AND CEO · bought 4,000 at avg $64.39
$258k
2.9% of stake
Feb 26No plan
Carol S Eicher
Director · sold 3,130 at $61.98
$194k
9.8% of stake
Aug 19, 2025No plan
Richard H. Zay
CHIEF COMMERCIAL OFFICER · sold 4,042 at $83.21
$336k
16% of stake
Feb 28, 2025No plan
Azita Arvani
Director · sold 2,358 at $85.22
$201k
13% of stake
Feb 28, 2025No plan
Barb Balinski
SVP, Chief Transf Officer · sold 1,717 at $86.42
$148k
13% of stake
Feb 24, 2025No plan
Richard H. Zay
CHIEF COMMERCIAL OFFICER · sold 7,053 at $87.58
$618k
21% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch TNC, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Related stocks: Refrigeration & Service Industry Machinery

HAYWHayward Holdings Inc.

SXIStandex International Corporation

ALHAlliance Laundry Holdings Inc.

MIDDThe Middleby Corporation

AAONAaon Inc.

LIILennox International Inc.

OMCLOmnicell Inc.

KAIKadant Inc.

Spot a number that looks wrong? Check it in TNC's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing TNC

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.