Updated Jul 16, 2026 · Last SEC filing 2026-05-29
LENNOX INTERNATIONAL INC (LII) has filed 11 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-29. 2 Form 8-K material event filings were reported by LII in the last 90 days. 1 Form 144 notices of proposed sale were filed for LII stock. InsiderAlpha tracks every LII SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (SIC 3585) |
|---|---|
| SEC CIK | 0001069202 |
| Form 4 filings (90d) | 11 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-05-29 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| NORRIS JOHN W III | Director | G — Bona-fide gift | 990 | $0.00 | — | SEC | |
| Somasundaram Sivasankaran | Director | D — Derivative transaction | 343 | $0.00 | — | SEC | |
| NORRIS JOHN W III | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Wall Shane D | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Somasundaram Sivasankaran | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Quintos Karen H | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Embree Tracy A | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Buck Sherry | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| TESKE TODD J | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Vander Ark Jon | Director | A — Grant or award | 343 | $0.00 | — | SEC | |
| Kosel Chris | VP-Corp Controller and CAO | S — Open-market sale | 971 | $544.80 | $529K | SEC | |
| Somasundaram Sivasankaran | Director | A — Grant or award | 51 | $505.31 | $26K | SEC | |
| Nassab Joseph | EVP & Pres., Bldg Climate Sol. | A — Grant or award | 3.6K | $0.00 | — | SEC | |
| Nassab Joseph | EVP & Pres., Bldg Climate Sol. | F — Tax withholding / forfeiture | 1.2K | $480.48 | $599K | SEC | |
| Kosel Chris | VP-Corp Controller and CAO | F — Tax withholding / forfeiture | 313 | $480.48 | $150K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for LENNOX INTERNATIONAL INC (LII). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Somasundaram Sivasankaran | 2 | — |
| NORRIS JOHN W III | 2 | — |
| Kosel Chris | 1 | $529K |
| Wall Shane D | 1 | — |
| TESKE TODD J | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in LII insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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