TNC
TENNANT CO
Stock Price & Insider Activity
Historical close with open-market insider transaction markers
Insider activity
Sign in to download CSVBought$2.1M7 buy days
Sold$47.1M101 sell days
Net insider flow$-44.9Mnet selling · 10 years
Latest trade2026-08-31ALLEN PATRICK E
| Date | Side | Insider | Role | Shares | Avg price | Value | Trades |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | Buy | ALLEN PATRICK E | Director | 3,000 | $69.42 | $208.3K | 1 |
| 2026-08-12 | Buy | Mulligan Donal L | Director | 8,000 | $67.34 | $538.7K | 1 |
| 2026-08-12 | Buy | Morse Timothy R. | Director | 1,500 | $68.18 | $102.3K | 1 |
| 2026-05-07 | Sell | Zay Richard H. | Other C-suite | 6,875 | $88.02 | $605.1K | 1 |
| 2026-03-02 | Buy | Glerum James T Jr. | Director | 8,163 | $61.25 | $500.0K | 1 |
| 2026-02-27 | Sell | Arvani Azita | Director | 3,156 | $61.40 | $193.8K | 1 |
| 2026-02-27 | Buy | Mulligan Donal L | Director | 3,000 | $61.61 | $184.8K | 1 |
| 2026-02-26 | Buy | Mulligan Donal L | Director | 5,000 | $63.86 | $319.3K | 1 |
| 2026-02-26 | Buy | Huml David W. | CEO | 4,000 | $64.39 | $257.5K | 3 |
| 2026-02-26 | Sell | Windley David | Director | 3,694 | $63.86 | $235.9K | 1 |
| 2026-02-26 | Sell | EICHER CAROL S | Director | 3,130 | $61.98 | $194.0K | 1 |
| 2025-08-19 | Sell | Zay Richard H. | Other C-suite | 4,042 | $83.21 | $336.3K | 1 |
| 2025-02-28 | Sell | Arvani Azita | Director | 2,358 | $85.22 | $200.9K | 1 |
| 2025-02-28 | Sell | Balinski Barb | Other C-suite | 1,717 | $86.42 | $148.4K | 1 |
| 2025-02-24 | Sell | Zay Richard H. | Other C-suite | 7,053 | $87.58 | $617.7K | 1 |
| 2024-08-28 | Sell | Balinski Barb | EVP / SVP | 1,500 | $96.61 | $144.9K | 1 |
| 2024-03-08 | Sell | ERICKSON KRISTIN A. | General counsel | 556 | $110.00 | $61.2K | 1 |
| 2024-03-07 | Sell | ERICKSON KRISTIN A. | General counsel | 1,270 | $110.66 | $140.5K | 1 |
| 2024-03-04 | Sell | Huml David W. | CEO | 20,009 | $110.83 | $2.2M | 3 |
| 2024-03-04 | Sell | Arvani Azita | Director | 1,765 | $111.72 | $197.2K | 1 |
| 2024-02-28 | Sell | EICHER CAROL S | Director | 2,298 | $116.45 | $267.6K | 1 |
| 2024-02-27 | Sell | Zay Richard H. | Other C-suite | 14,743 | $110.19 | $1.6M | 1 |
| 2024-02-27 | Sell | Sonnenberg Steven Alan | Director | 8,910 | $110.09 | $980.9K | 1 |
| 2024-02-27 | Sell | Windley David | Director | 7,250 | $113.24 | $821.0K | 1 |
| 2024-02-27 | Sell | Mulligan Donal L | Director | 2,358 | $110.00 | $259.4K | 1 |
| 2023-11-07 | Sell | ERICKSON KRISTIN A. | General counsel | 950 | $82.00 | $77.9K | 1 |
| 2023-10-03 | Sell | Mulligan Donal L | Director | 1,765 | $73.94 | $130.5K | 1 |
| 2023-08-30 | Sell | Sonnenberg Steven Alan | Director | 1,765 | $83.24 | $146.9K | 1 |
| 2023-08-14 | Sell | Huml David W. | CEO | 4,599 | $83.83 | $385.5K | 1 |
| 2023-08-10 | Sell | Zay Richard H. | Other C-suite | 5,559 | $85.79 | $476.9K | 1 |
| 2023-05-26 | Sell | McKnight Carol E. | Other C-suite | 15,999 | $75.41 | $1.2M | 1 |
| 2023-05-25 | Sell | McKnight Carol E. | Other C-suite | 4,445 | $75.74 | $336.7K | 1 |
| 2023-05-24 | Sell | McKnight Carol E. | Other C-suite | 6,930 | $76.29 | $528.7K | 2 |
| 2023-05-23 | Sell | McKnight Carol E. | Other C-suite | 3,832 | $77.57 | $297.2K | 1 |
| 2023-05-03 | Sell | Zay Richard H. | Other C-suite | 3,719 | $79.46 | $295.5K | 1 |
| 2023-04-03 | Sell | Mulligan Donal L | Director | 2,320 | $68.38 | $158.6K | 1 |
| 2023-03-07 | Sell | Arvani Azita | Director | 2,320 | $70.69 | $164.0K | 1 |
| 2022-11-11 | Sell | Sonnenberg Steven Alan | Director | 2,320 | $46.59 | $108.1K | 1 |
| 2022-08-19 | Sell | EICHER CAROL S | Director | 1,580 | $68.50 | $108.2K | 2 |
| 2022-08-16 | Sell | Zay Richard H. | Other C-suite | 2,500 | $70.79 | $177.0K | 2 |
| 2021-11-09 | Sell | Arvani Azita | Director | 1,411 | $83.60 | $118.0K | 1 |
| 2021-11-01 | Sell | Mulligan Donal L | Director | 2,531 | $80.00 | $202.5K | 1 |
| 2021-08-20 | Sell | Zay Richard H. | Other C-suite | 3,680 | $71.95 | $264.8K | 1 |
| 2021-08-18 | Sell | Zay Richard H. | Other C-suite | 1,600 | $72.94 | $116.7K | 2 |
| 2021-05-28 | Sell | EICHER CAROL S | Director | 1,281 | $83.24 | $106.6K | 1 |
| 2021-05-10 | Sell | Huml David W. | CEO | 4,995 | $86.32 | $431.2K | 2 |
| 2021-05-10 | Sell | Zay Richard H. | Other C-suite | 3,782 | $84.91 | $321.1K | 2 |
| 2021-04-20 | Sell | KILLINGSTAD CHRIS | Director | 2,512 | $79.15 | $198.8K | 1 |
| 2021-04-07 | Sell | KILLINGSTAD CHRIS | Director | 5,023 | $80.93 | $406.5K | 1 |
| 2021-03-08 | Sell | KILLINGSTAD CHRIS | Director | 3,809 | $80.00 | $304.7K | 1 |
| 2021-02-02 | Sell | KILLINGSTAD CHRIS | CEO | 3,297 | $70.00 | $230.8K | 1 |
| 2021-02-01 | Sell | KILLINGSTAD CHRIS | CEO | 6,593 | $67.93 | $447.9K | 1 |
| 2021-01-22 | Sell | KILLINGSTAD CHRIS | CEO | 3,809 | $75.00 | $285.7K | 1 |
| 2021-01-04 | Sell | KILLINGSTAD CHRIS | CEO | 9,889 | $70.00 | $692.2K | 1 |
| 2020-12-09 | Sell | KILLINGSTAD CHRIS | CEO | 3,270 | $70.00 | $228.9K | 1 |
| 2020-12-08 | Sell | KILLINGSTAD CHRIS | CEO | 27 | $70.00 | $1.9K | 1 |
| 2020-12-07 | Sell | Huml David W. | COO | 492 | $69.29 | $34.1K | 1 |
| 2020-12-03 | Sell | WICHMANN DAVID S | Director | 1,750 | $67.63 | $118.4K | 1 |
| 2020-12-01 | Sell | KILLINGSTAD CHRIS | CEO | 6,592 | $67.78 | $446.8K | 1 |
| 2020-11-24 | Sell | KILLINGSTAD CHRIS | CEO | 15,302 | $70.00 | $1.1M | 1 |
| 2020-11-16 | Sell | KILLINGSTAD CHRIS | CEO | 3,297 | $64.14 | $211.5K | 1 |
| 2020-11-13 | Sell | EICHER CAROL S | Director | 1,131 | $63.30 | $71.6K | 1 |
| 2020-11-09 | Sell | Zay Richard H. | EVP / SVP | 14,731 | $64.00 | $942.8K | 1 |
| 2020-11-09 | Sell | KILLINGSTAD CHRIS | CEO | 6,592 | $66.50 | $438.4K | 2 |
| 2020-02-03 | Sell | KILLINGSTAD CHRIS | CEO | 12,839 | $77.07 | $989.5K | 2 |
| 2020-01-02 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $77.68 | $997.7K | 2 |
| 2019-12-05 | Sell | Mulligan Donal L | Director | 1,750 | $80.00 | $140.0K | 1 |
| 2019-12-04 | Sell | Huml David W. | EVP / SVP | 506 | $79.06 | $40.0K | 1 |
| 2019-12-02 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $74.38 | $955.3K | 2 |
| 2019-11-14 | Sell | Huml David W. | EVP / SVP | 424 | $70.10 | $29.7K | 1 |
| 2019-11-11 | Sell | Zay Richard H. | EVP / SVP | 7,301 | $77.46 | $565.5K | 1 |
| 2019-11-05 | Sell | Sonnenberg Steven Alan | Director | 4,281 | $78.49 | $336.0K | 1 |
| 2019-11-01 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $76.90 | $987.7K | 2 |
| 2019-10-11 | Sell | KILLINGSTAD CHRIS | CEO | 3,800 | $70.00 | $266.0K | 1 |
| 2019-10-01 | Sell | KILLINGSTAD CHRIS | CEO | 9,043 | $68.96 | $623.6K | 3 |
| 2019-09-10 | Sell | KILLINGSTAD CHRIS | CEO | 6,500 | $70.00 | $455.0K | 1 |
| 2019-09-09 | Sell | KILLINGSTAD CHRIS | CEO | 4,143 | $68.00 | $281.7K | 1 |
| 2019-09-05 | Sell | KILLINGSTAD CHRIS | CEO | 2,200 | $68.00 | $149.6K | 1 |
| 2019-08-16 | Sell | WICHMANN DAVID S | Director | 1,660 | $69.07 | $114.7K | 1 |
| 2019-08-01 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $73.34 | $941.9K | 3 |
| 2019-07-31 | Sell | Zay Richard H. | EVP / SVP | 4,000 | $72.49 | $290.0K | 2 |
| 2019-07-31 | Sell | Mulligan Donal L | Director | 2,985 | $70.00 | $208.9K | 1 |
| 2019-07-16 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $66.29 | $851.3K | 3 |
| 2019-06-18 | Sell | KILLINGSTAD CHRIS | CEO | 12,843 | $61.64 | $791.7K | 2 |
| 2019-05-28 | Sell | EICHER CAROL S | Director | 1,335 | $58.97 | $78.7K | 1 |
| 2019-05-10 | Sell | Sonnenberg Steven Alan | Director | 2,256 | $65.31 | $147.3K | 1 |
| 2018-09-06 | Sell | Huml David W. | EVP / SVP | 13,416 | $75.15 | $1.0M | 1 |
| 2018-08-09 | Sell | PAULSON THOMAS | CFO | 15,000 | $78.30 | $1.2M | 2 |
| 2018-08-08 | Sell | Huml David W. | EVP / SVP | 6,550 | $79.57 | $521.2K | 1 |
| 2018-05-01 | Sell | Huml David W. | VP | 415 | $72.99 | $30.3K | 1 |
| 2018-04-23 | Sell | PAULSON THOMAS | CFO | 10,575 | $73.19 | $774.0K | 2 |
| 2018-04-23 | Sell | Zay Richard H. | EVP / SVP | 664 | $73.00 | $48.5K | 1 |
| 2018-04-17 | Sell | KILLINGSTAD CHRIS | CEO | 44,271 | $71.00 | $3.1M | 1 |
| 2018-04-16 | Sell | KILLINGSTAD CHRIS | CEO | 4,427 | $68.58 | $303.6K | 1 |
| 2018-04-11 | Sell | KILLINGSTAD CHRIS | CEO | 13,281 | $68.36 | $907.9K | 1 |
| 2018-04-10 | Sell | KILLINGSTAD CHRIS | CEO | 17,708 | $68.99 | $1.2M | 1 |
| 2018-04-09 | Sell | KILLINGSTAD CHRIS | CEO | 26,564 | $68.25 | $1.8M | 1 |
| 2018-04-06 | Sell | PAULSON THOMAS | CFO | 9,296 | $69.08 | $642.2K | 1 |
| 2018-01-11 | Sell | PAULSON THOMAS | CFO | 6,694 | $72.90 | $488.0K | 1 |
| 2017-06-05 | Sell | PAULSON THOMAS | CFO | 6,474 | $73.95 | $478.8K | 1 |
| 2017-06-02 | Sell | Zay Richard H. | EVP / SVP | 1,280 | $73.00 | $93.4K | 1 |
| 2017-06-02 | Sell | PAULSON THOMAS | CFO | 1,026 | $73.95 | $75.9K | 1 |
| 2017-05-01 | Sell | EICHER CAROL S | Director | 1,928 | $73.76 | $142.2K | 1 |
| 2017-04-10 | Sell | PAULSON THOMAS | CFO | 7,500 | $71.71 | $537.8K | 1 |
| 2017-03-06 | Sell | Wilson Heidi M | General counsel | 5,790 | $71.65 | $414.9K | 1 |
| 2017-03-01 | Sell | Sonnenberg Steven Alan | Director | 4,600 | $72.16 | $331.9K | 1 |
| 2017-02-28 | Sell | Sonnenberg Steven Alan | Director | 1,400 | $72.19 | $101.1K | 1 |
| 2016-11-08 | Sell | PAULSON THOMAS | CFO | 15,000 | $68.00 | $1.0M | 1 |