Somasundaram Sivasankaran (CIK 1424543) reported 11 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-04-13). Recent activity: Buy LII (51 shares), Buy LII (49 shares), Buy LII (50 shares), Sell CHX (844,813 shares), Sell CHX (99,011 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-13 | LENNOX INTERNATIONAL INC (LII) | Director | Buy | 51 | $25,771 |
| 2026-01-12 | LENNOX INTERNATIONAL INC (LII) | Director | Buy | 49 | $25,981 |
| 2025-10-14 | LENNOX INTERNATIONAL INC (LII) | Director | Buy | 50 | $26,225 |
| 2025-07-16 | ChampionX Corp (CHX) | President & CEO | Sell | 844,813 | $0 |
| 2025-07-16 | ChampionX Corp (CHX) | President & CEO | Sell | 99,011 | $0 |
| 2025-07-14 | LENNOX INTERNATIONAL INC (LII) | Director | Buy | 42 | $25,908 |
| 2025-05-27 | LENNOX INTERNATIONAL INC (LII) | Director | Buy | 270 | $0 |
| 2025-02-20 | ChampionX Corp (CHX) | President & CEO | Sell | 37,716 | $1.1M |
| 2025-02-05 | ChampionX Corp (CHX) | President & CEO | Buy | 175,181 | $0 |
| 2025-02-05 | ChampionX Corp (CHX) | President & CEO | Sell | 63,790 | $1.8M |
| 2025-02-05 | ChampionX Corp (CHX) | President & CEO | Buy | 179,180 | $0 |
Source: SEC Form 4 filings · as of 2026-04-13