Donal L Mulligan bought $539k of TNC
director at TENNANT CO. 8,000 shares at an average of $67.34, traded Aug 12, 2026, filed Aug 13, 2026.
Score components
- +15RoleDirector
- +19Trade size$539k at market
- +10Relative to holdingsHoldings up 100%
- +4Price context24% below the 52-week high
- +8Cluster2 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001406019-26-000008, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | POpen-market purchase Common Stockindirect: By trust for spouse | +8,000 | $67.34 | $539k | 16,000 | Aug 13, 2026 |
Related signals
Other insiders at TENNANT CO and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 37Weak | TNCbuy TENNANT CO | Patrick E Allen director | $208k 3,000 shares | +156% | |
| 40Moderate | TENNANT CO | Timothy R. Morse director | $102k 1,500 shares | +16% | |
| 39Weak | TNCsell TENNANT CO | Richard H. Zay CHIEF COMMERCIAL OFFICER | $605k 6,875 shares | -20% | |
| 32Weak | TENNANT CO | Azita Arvani director | $194k 3,156 shares | -15% | |
| 27Weak | TENNANT CO | Carol S Eicher director | $194k 3,130 shares | -10% | |
| 72Notable | TENNANT CO | James T Glerum Jr. director | $500k 8,163 shares | +1868% | |
| 70Notable | TENNANT CO | David W. Huml PRESIDENT AND CEO | $258k 4,000 shares | +6% | |
| 70Notable | TENNANT CO | Donal L Mulligan director | $504k 8,000 shares | - | |
| 38Weak | TENNANT CO | David Windley director | $236k 3,694 shares | -33% | |
| 35Weak | TNCsell TENNANT CO | Richard H. Zay CHIEF COMMERCIAL OFFICER | $336k 4,042 shares | -16% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.