As of September 29, 2026, Tennant's top three insider holders are David W. Huml (President And Ceo, 138.56K shares), Fay West (Senior Vp, Cfo, 48.25K shares), Carol S Eicher (Director, 30.33K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | David W. Huml | President And Ceo | 65,629 | 72,930 | 138,559 | 30.4% | 10 Mar, 2026 |
| 2 | Fay West | Senior Vp, Cfo | 48,253 | 0 | 48,253 | 10.6% | 03 Mar, 2026 |
| 3 | Carol S Eicher | Director | 30,326 | 0 | 30,326 | 6.6% | 11 May, 2026 |
| 4 | Richard H. Zay | Svp, Coo | 30,225 | 0 | 30,225 | 6.6% | 11 Sep, 2026 |
| 5 | Kristin A. Erickson | Svp, Chro Gc | 25,176 | 0 | 25,176 | 5.5% | 03 Mar, 2026 |
| 6 | Steven Alan Sonnenberg | Director | 22,994 | 0 | 22,994 | 5.0% | 29 Feb, 2024 |
| 7 | Carol E. Mcknight | Former, Svp, Chief Admin Offr | 21,760 | 0 | 21,760 | 4.8% | 30 May, 2023 |
| 8 | Barb Balinski | Svp, Chief Transf Officer | 19,218 | 0 | 19,218 | 4.2% | 03 Mar, 2026 |
| 9 | Azita Arvani | Director | 18,925 | 0 | 18,925 | 4.1% | 11 May, 2026 |
| 10 | Donal L Mulligan | Director | 0 | 16,000 | 16,000 | 3.5% | 13 Aug, 2026 |
| 11 | Patrick W. Schottler | Svp, Robotics | 13,857 | 0 | 13,857 | 3.0% | 11 Sep, 2026 |
| 12 | Maria C Green | Director | 12,709 | 0 | 12,709 | 2.8% | 11 May, 2026 |
| 13 | Timothy R. Morse | Director | 10,614 | 0 | 10,614 | 2.3% | 13 Aug, 2026 |
| 14 | James T Jr. Glerum | Director | 10,090 | 0 | 10,090 | 2.2% | 11 May, 2026 |
| 15 | David Windley | Director | 8,912 | 0 | 8,912 | 2.0% | 11 May, 2026 |
| 16 | Andrew P. Hider | Director | 6,987 | 0 | 6,987 | 1.5% | 11 May, 2026 |
| 17 | Brock R. Christianson | Svp, Chief Hr Officer | 6,315 | 0 | 6,315 | 1.4% | 25 Feb, 2025 |
| 18 | Daniel E. Glusick | Svp, Operations | 5,940 | 0 | 5,940 | 1.3% | 03 Mar, 2022 |
| 19 | Patrick E Allen | Director | 4,927 | 0 | 4,927 | 1.1% | 23 Sep, 2026 |
| 20 | Mark W Sheahan | Director | 4,348 | 0 | 4,348 | 1.0% | 11 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 31 Aug, 2026 | Patrick E Allen | Director | Acquired P | 3,000 | $69.42 | $208.25K | 4,927 | Direct |
| 10 Aug, 2026 | Richard H. Zay | Svp, Coo | Acquired A | 2,707 | $0.00 | $0 | 30,225 | Direct |
| 10 Aug, 2026 | Patrick W. Schottler | Svp, Robotics | Acquired A | 2,707 | $0.00 | $0 | 13,857 | Direct |
| 12 Aug, 2026 | Donal L Mulligan | Director | Acquired P | 8,000 | $67.34 | $538.72K | 16,000 | Indirect |
| 12 Aug, 2026 | Timothy R. Morse | Director | Acquired P | 1,500 | $68.18 | $102.27K | 10,614 | Direct |
| 07 May, 2026 | James T Jr. Glerum | Director | Acquired A | 1,490 | $0.00 | $0 | 10,090 | Direct |
| 07 May, 2026 | Maria C Green | Director | Acquired A | 1,490 | $0.00 | $0 | 12,709 | Direct |
| 07 May, 2026 | Mark W Sheahan | Director | Acquired A | 1,490 | $0.00 | $0 | 4,348 | Direct |
| 07 May, 2026 | Richard H. Zay | Chief Commercial Officer | Disposed S | 6,875 | $88.02 | $605.10K | 27,518 | Direct |
| 07 May, 2026 | Carol S Eicher | Director | Acquired A | 1,490 | $0.00 | $0 | 30,326 | Direct |
| 07 May, 2026 | Patrick E Allen | Director | Acquired A | 1,490 | $0.00 | $0 | 1,927 | Direct |
| 07 May, 2026 | Azita Arvani | Director | Acquired A | 1,490 | $0.00 | $0 | 18,925 | Direct |
| 07 May, 2026 | David Windley | Director | Acquired A | 1,490 | $0.00 | $0 | 8,912 | Direct |
| 07 May, 2026 | Andrew P. Hider | Director | Acquired A | 1,490 | $0.00 | $0 | 6,987 | Direct |
| 07 May, 2026 | Donal L Mulligan | Director | Acquired A | 1,490 | $0.00 | $0 | 22,175 | Direct |
| 07 May, 2026 | Timothy R. Morse | Director | Acquired A | 1,490 | $0.00 | $0 | 9,114 | Direct |
| 14 Apr, 2026 | Donal L Mulligan | Director | Acquired M | 3,538 | $54.70 | $193.53K | 23,141 | Direct |
| 14 Apr, 2026 | Donal L Mulligan | Director | Disposed F | 2,456 | $78.81 | $193.56K | 20,685 | Direct |
| 14 Apr, 2026 | Donal L Mulligan | Director | Disposed M | 3,538 | $0.00 | $0 | 0 | Direct |
| 06 Mar, 2026 | David W. Huml | President And Ceo | Disposed G | 26,755 | $0.00 | $0 | 65,629 | Direct |