TNC
−$605.1K
6,875 sh @ $88
TNC
TENNANT CO
SEC CIK 97134
$87.53
+12.4% · 90 days
90-day buys
$0
0 open-market
90-day sells
$605.1K
1 open-market
Net insider flow
−$605.1K
Net selling
Filings shown
35
Most recent
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At a glance
Over the last 90 days, insiders at TNC have sold a net $605.1K of stock (0 open-market buys vs 1 sell).
Largest recent trade: Zay Richard H. sold $605.1K of TNC, trimming their stake 20%.
Most active filer: Mulligan Donal L, with 5 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for TNC, newest firstTNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
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TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$0
1,490 sh
TNC
+$193.5K
3,538 sh @ $55
TNC
−$193.6K
2,456 sh @ $79
TNC
−$0
26,755 sh
TNC
+$0
26,755 sh
TNC
Glerum James T Jr., TNC's Director, spent $500K of their own money on 8,163 shares at $61, growing their stake 1868%.
+$500K
8,163 sh @ $61
TNC
−$11.8K
194 sh @ $61
TNC
−$27.5K
451 sh @ $61
TNC
−$31.4K
514 sh @ $61
TNC
−$51.3K
840 sh @ $61
TNC
−$57.7K
945 sh @ $61
TNC
−$260.5K
4,268 sh @ $61
TNC
Mulligan Donal L, TNC's Director, spent $184.8K of their own money on 3,000 shares at $62, growing their stake 60%.
+$184.8K
3,000 sh @ $62
TNC
+$193.5K
3,538 sh @ $55
TNC
−$193.8K
3,156 sh @ $61
TNC
+$0
437 sh
TNC
Mulligan Donal L, TNC's Director, spent $319.3K of their own money on 5,000 shares at $64, opening a brand-new position.
+$319.3K
5,000 sh @ $64
TNC
+$193.5K
3,538 sh @ $55
TNC
−$194K
3,130 sh @ $62
TNC
+$37.1K
707 sh @ $52
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About TNC insider activity
This page tracks every recent Form 4 filed for TENNANT CO with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is TNC insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for TENNANT CO usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.