Karyn Polito bought $136k of CLH
director at CLEAN HARBORS INC. 460 shares at an average of $295.13, traded May 11, 2026, filed May 14, 2026.
Score components
- +15RoleDirector
- +11Trade size$136k at market
- +3Relative to holdingsHoldings up 15%
- 0Price contextNear the top of the 52-week range
- 0ClusterNo other insider 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 0001965457-26-000004, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 11, 2026 | POpen-market purchase Common Stock | +460 | $295.13 | $136k | 3,475 | May 14, 2026 |
Related signals
Other insiders at CLEAN HARBORS INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 55Moderate | CLEAN HARBORS INC | Eric W Gerstenberg CO-CEO | $803k 2,500 shares | -4% | |
| 61Notable | CLEAN HARBORS INC | Eric W Gerstenberg CO-CEO | $700k 2,500 shares | -4% | |
| 54Moderate | CLEAN HARBORS INC | Eric W Gerstenberg CO-CEO | $293k 1,000 shares | -2% | |
| 64Notable | CLEAN HARBORS INC | Eric J. Dugas EVP CHIEF FINANCIAL OFFICER | $784k 2,788 shares | -12% | |
| 36Weak | CLEAN HARBORS INC | Andrea Robertson director | $248k 789 shares | -8% | |
| 28Weak | CLHsell CLEAN HARBORS INC | Lauren States director | $226k 789 shares | -6% | |
| 54Moderate | CLEAN HARBORS INC | Eric W Gerstenberg CO-CEO | $293k 1,000 shares | -3% | |
| 48Moderate | CLEAN HARBORS INC | Marcy L. Reed director | $241k 836 shares | -14% | |
| 55Moderate | CLEAN HARBORS INC | Brian P Weber EVP (CHESI) | $1.4M 4,683 shares | -9% | |
| 60Notable | CLEAN HARBORS INC | Alan S McKim EXEC CHAIR, CTO. | $29M 100,000 shares | -5% |
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.