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TNC TENNANT CO Insider Trading

3 filings analyzed · Latest 2026-03-02
Insider buys
3
Insider sells
0
Unique insiders
3
Direction
Net buying

Historically, high-priority insider buys have outperformed the S&P 500 by a median ~2% over the 30 days after filing — the edge is concentrated in that first month (n ≈ 5,751, 2021-2026). Past results don't predict the future. How we measure this ↗

March 2026
2026-03-02
high
8,000 shares
$504,130
@ $63.02
Significance 7/10

Director Mulligan Donal L bought 8,000 shares ($504.1K) at $63.86–$61.61 amid cluster buying and stock down 30.5% from 52-week high.

Mulligan Donal L, a director, purchased 8,000 shares across two separate transactions totaling $504,130.00 at prices of $63.86 on 2026-02-26 and $61.61 on 2026-02-27, establishing an initial position where he held 0 shares pre-transaction. The purchases come at a time when the stock is trading at $60.91, representing -30.5% from the 52-week high and -20.0% over the past 30 days. This filing is part of a cluster pattern: 2 other insiders also bought within the past 14 days, suggesting coordinated board-level interest despite negative price momentum. The company's fundamentals show a P/E of 73.39 with recent annual revenue growth of -6.5%, yet the director proceeded with a material open-market acquisition immediately after these price declines, when his cross-ticker track record shows 3 prior buys with 100.00% 90-day win rate and avg 90d return +17.4%.

2026-03-02
high
PRESIDENT AND CEO
4,000 shares
$257,560
@ $64.39
Significance 6/10

CEO Huml bought 4,000 shares at blended average $64.39; stock down 30.5% from 52-week high; cluster pattern with 2 other insiders buying in past 14 days.

David W. Huml, President and CEO of Tennant Co, executed 3 separate purchases totaling 4,000 shares for $257,560.30 at an average price of $64.39 on 2026-02-26, increasing his holdings by 4.3% to 96,652 shares post-transaction. The buy occurred as the stock trades at $60.91, down 30.5% from its 52-week high of $87.61 and down 20.0% over the past 30 days, indicating the purchase was made into a period of material price weakness. Notably, a cluster pattern is present: 2 other insiders also bought within the past 14 days, which may reflect a coordinated management assessment of value. However, the fundamental context is mixed—annual revenue growth stands at -6.5%, the P/E ratio is elevated at 73.39, and net income of $14.9M on quarterly revenue of $303.3M suggests limited profitability, warranting examination of whether the purchases reflect confidence in a turnaround or are motivated by other factors.

2026-03-02
high
8,163 shares
$499,980
@ $61.25
Significance 7/10

Director Glerum bought 8,163 shares of TNC at $61.25 (Mar 2), expanding stake +1868.0%; 2 other insiders bought within 14 days

Glerum James T Jr., a Director, purchased 8,163 shares at $61.25 on 2026-03-02, investing $499,979.67 and expanding his holdings from 437 shares to 8,600 shares—a +1868.0% increase in position size. This transaction is part of a cluster buy pattern, with 2 other insiders also acquiring shares within the past 14 days, suggesting coordinated board-level conviction. The stock is currently trading at $60.91, near the lower bound of its 52-week range of $60.91–$87.61 and down 30.5% from the 52-week high and 20.0% over the past 30 days, indicating the purchase occurred during a significant pullback. Across his cross-ticker track record, Glerum's prior 4 open-market buys averaged +193.2% return over 30 days and +197.3% over 90 days with a 100.00% win rate, though TNC's elevated P/E of 73.39 and recent -6.5% annual revenue growth suggest near-term execution challenges that merit investor scrutiny.

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