As of the latest Form 4 filed May 29, 2026.
What Lennox International Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 42 most recent filings for LII.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-29 | 2026-05-28 | NORRIS JOHN W III Director | GGift | −990.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Somasundaram Sivasankaran Director | DDisposition | −343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Buck Sherry Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Quintos Karen H Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | TESKE TODD J Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Vander Ark Jon Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Wall Shane D Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Embree Tracy A Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | NORRIS JOHN W III Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Somasundaram Sivasankaran Director | AAward | +343.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-07 | 2026-05-06 | Kosel Chris VP-Corp Controller and CAO | SSale | −971.00 | $544.80 | $529K | No | Form 4 ↗ |
| 2026-04-13 | 2026-04-10 | Somasundaram Sivasankaran Director | AAward | +51.00 | $505.31 | $25.8K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Kosel Chris VP-Corp Controller and CAO | FTax | −313.00 | $480.48 | $150K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Kosel Chris, VP-Corp Controller and CAO | AAward | +1.28K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | BEDAPUDI PRAKASH EVP, Chief Technology Officer | FTax | −1.47K | $480.48 | $708K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | BEDAPUDI PRAKASH, EVP, Chief Technology Officer | AAward | +4.22K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Maskara Alok Chief Executive Officer | FTax | −7.55K | $480.48 | $3.63M | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Maskara Alok, Chief Executive Officer | AAward | +19.2K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Quenzer Michael EVP, Chief Financial Officer | FTax | −197.00 | $480.48 | $94.7K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Quenzer Michael, EVP, Chief Financial Officer | AAward | +805.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Sessa Daniel M EVP, Chief HR Officer | FTax | −1.55K | $480.48 | $747K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Sessa Daniel M, EVP, Chief HR Officer | AAward | +4.41K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Nassab Joseph EVP & Pres., Bldg Climate Sol. | FTax | −1.25K | $480.48 | $599K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Nassab Joseph, EVP & Pres., Bldg Climate Sol. | AAward | +3.65K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-04 | TESKE TODD J Director | SSale | −700.00 | $533.45 | $373K | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-04 | Kosel Chris VP-Corp Controller and CAO | SSale | −254.00 | $536.50 | $136K | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | BEDAPUDI PRAKASH EVP, Chief Technology Officer | AAward | +738.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Maskara Alok Chief Executive Officer | AAward | +3.95K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Brown Monica M. EVP, Chief Legal Officer | AAward | +472.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Quenzer Michael EVP, Chief Financial Officer | AAward | +885.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Sessa Daniel M EVP, Chief HR Officer | AAward | +738.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Martin Sarah Rachel EVP & Pres., Home Comfort Sol | AAward | +708.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Kosel Chris VP-Corp Controller and CAO | AAward | +201.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-04 | 2026-02-02 | Nassab Joseph EVP & Pres., Bldg Climate Sol. | AAward | +767.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-12 | 2026-01-09 | Somasundaram Sivasankaran Director | AAward | +49.00 | $530.23 | $26.0K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Sessa Daniel M EVP, Chief HR Officer | FTax | −531.00 | $500.13 | $266K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Quenzer Michael EVP, Chief Financial Officer | FTax | −97.00 | $500.13 | $48.5K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Nassab Joseph EVP & Pres., Bldg Climate Sol. | FTax | −439.00 | $500.13 | $220K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Maskara Alok Chief Executive Officer | FTax | −2.31K | $500.13 | $1.15M | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Kosel Chris VP-Corp Controller and CAO | FTax | −139.00 | $500.13 | $69.5K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | Brown Monica M. EVP, Chief Legal Officer | FTax | −114.00 | $500.13 | $57.0K | No | Form 4 ↗ |
| 2025-12-10 | 2025-12-09 | BEDAPUDI PRAKASH EVP, Chief Technology Officer | FTax | −508.00 | $500.13 | $254K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also LII’s full analysis or the market-wide insider trading feed. The tabs above jump to LII’s other SEC data.
Source: SEC Form 4 filings for LII, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.