undamentalytics Newsletter

Tennant Co insider trading

Every open-market purchase and sale by Tennant Co's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Tennant Co insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Tennant Co’s insiders pay?

From May 14, 2010 to September 23, 2026, 24 insiders reported 7 open-market purchases and 112 sales not made under a pre-set plan in Tennant Co. Twelve months after each purchase was reported, the shares were +15.1% against the S&P 500 on average (median +15.1%), over 1 purchase with a full year of prices; 100% beat the index. After sales, the shares moved −6.8% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on June 9, 2011 into $16,605 by November 2, 2026, +3.4% a year. It held shares 11% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $14,655 (+2.5% a year), and held throughout $76,684 (+14.2%).

$0$25.0k$50.0k$75.0k 20112013201520172019202120232025 $76.7k$16.6k$14.7k
Copying Tennant Co's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Tennant Co's insiders from June 9, 2011, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 11% of the time.
Tennant Co: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Wilson Heidi M SVP, General Counsel and Sec'y 0 — — 15 −0.9% (15) March 7, 2017
Zay Richard H. CHIEF COMMERCIAL OFFICER 0 — — 15 −13.2% (14) May 11, 2026
Dybsky Thomas SVP, Administration 0 — — 12 +4.1% (12) November 19, 2013
Eckert Andrew J SVP, The Americas 0 — — 11 +5.6% (11) May 29, 2014
Huml David W. PRESIDENT AND CEO 1 — — 9 −20.4% (9) March 2, 2026
Eicher Carol S Director 0 — — 7 −9.9% (6) March 2, 2026
Sonnenberg Steven Alan Director 0 — — 7 −16.2% (7) February 29, 2024
Schaefer Michael SVP, Chief Technical Officer 0 — — 6 +3.3% (6) December 11, 2013
Arvani Azita Director 0 — — 5 −12.5% (4) March 2, 2026
Westman Don B SVP, Operations 0 — — 5 +6.3% (5) October 30, 2013
Killingstad Chris President and CEO 0 — — 4 −16.4% (4) July 31, 2014
Mulligan Donal L Director 2 — — 2 −20.3% (2) August 13, 2026
Balinski Barb SVP, Chief Transf Officer 0 — — 2 −35.7% (2) March 4, 2025
Erickson Kristin A. SVP, GENERAL COUNSEL 0 — — 2 −32.2% (2) March 11, 2024
Huijser Karel VP of International 0 — — 2 −3.0% (2) March 11, 2011
Mcknight Carol E. FORMER, SVP, CHIEF ADMIN OFFR 0 — — 2 +10.9% (2) May 30, 2023
Wichmann David S Director 0 — — 2 −10.8% (2) December 7, 2020
Windley David Director 0 — — 2 −39.3% (1) March 2, 2026
Allen Patrick E Director 1 — — 0 — September 23, 2026
Austen William F. Director 1 +15.1% (1) 100% 0 — June 8, 2011
Balagna Jeffrey A Director 0 — — 1 +6.5% (1) August 30, 2012
Glerum James T JR. Director 1 — — 0 — March 2, 2026
Morse Timothy R. Director 1 — — 0 — August 13, 2026
Paulson Thomas SVP, CFO 0 — — 1 −13.1% (1) August 13, 2018

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Tennant Co

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Tennant Co in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 13 selling crowds, −5.0%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
August 31, 20262 buyingnot yetnot yetnot yet
May 29, 20264 selling−21.2%not yetnot yet
March 31, 20253 selling−10.4%−17.4%−30.4%
March 28, 20247 selling−23.2%−30.1%−41.8%
September 29, 20233 selling+13.8%+42.0%−6.9%
May 31, 20233 selling+5.9%+8.4%+14.0%
June 30, 20213 selling−8.1%−9.3%−14.2%
December 31, 20204 selling+7.3%−4.3%−11.9%
November 29, 20193 selling+1.0%−11.7%−26.1%
May 31, 20173 selling−14.4%−16.3%−0.4%
October 31, 20135 selling+3.8%−1.7%+6.0%
February 28, 20133 selling−0.7%+3.9%+7.6%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Latest 12 of 15. Total returns from the month end; past patterns are not a forecast.

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