Lennox International Inc.
MX ˙ BMV ˙ GB00BYQ46T41
SecurityMX:LII / Lennox International Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership183,166 shares
Latest Disclosed Value $ 85,012,836
Millennium Management Llc ownership in LII / Lennox International Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 183,166 shares of Lennox International Inc. (MX:LII) valued at $85,012,836 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 185,447 shares of Lennox International Inc.. This represents a change in shares of -1.23% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (LII) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:LII / Lennox International Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F LENNOX INTL COM 526107107 183,166 -2,281 -1.23 85,013 -5.59 0.0354
2026-02-17 2025-12-31 13F LENNOX INTL COM 526107107 185,447 136,025 275.23 90,049 244.20 0.0379
2025-11-14 2025-09-30 13F LENNOX INTL COM 526107107 49,422 21,443 76.64 26,162 63.13 0.0112
2025-08-14 2025-06-30 13F LENNOX INTL COM 526107107 27,979 -91,639 -76.61 16,039 -76.09 0.0077
2025-05-15 2025-03-31 13F LENNOX INTL COM 526107107 119,618 -3,619 -2.94 67,085 -10.66 0.0357
2025-02-14 2024-12-31 13F LENNOX INTL COM 526107107 123,237 -70,717 -36.46 75,088 -35.93 0.0367
2024-11-14 2024-09-30 13F LENNOX INTL COM 526107107 193,954 -56,535 -22.57 117,204 -12.54 0.0556
2024-08-14 2024-06-30 13F LENNOX INTL COM 526107107 250,489 34,002 15.71 134,007 26.65 0.0621
2024-05-15 2024-03-31 13F LENNOX INTL COM 526107107 216,487 92,048 73.97 105,810 90.01 0.0452
2024-02-14 2023-12-31 13F LENNOX INTL COM 526107107 124,439 -94,587 -43.19 55,689 -32.10 0.0241
2023-11-14 2023-09-30 13F LENNOX INTL COM 526107107 219,026 208,225 1,927.83 82,012 2,229.22 0.0414
2023-08-14 2023-06-30 13F LENNOX INTL COM 526107107 10,801 -19,410 -64.25 3,522 -53.62 0.0017
2023-05-15 2023-03-31 13F LENNOX INTL COM 526107107 30,211 -406,173 -93.08 7,591 -92.73 0.0044
2023-02-14 2022-12-31 13F LENNOX INTL COM 526107107 436,384 186,221 74.44 104,396 87.41 0.0578
2022-11-14 2022-09-30 13F LENNOX INTL COM 526107107 250,163 129,912 108.03 55,704 124.22 0.0329
2022-08-15 2022-06-30 13F LENNOX INTL COM 526107107 120,251 84,628 237.57 24,843 170.44 0.0154
2022-05-16 2022-03-31 13F LENNOX INTL COM 526107107 35,623 -121,548 -77.33 9,186 -81.98 0.0049
2022-02-14 2021-12-31 13F LENNOX INTL COM 526107107 157,171 51,781 49.13 50,980 64.44 0.0259
2021-11-15 2021-09-30 13F LENNOX INTL COM 526107107 105,390 79,189 302.24 31,003 237.32 0.0186
2021-08-16 2021-06-30 13F LENNOX INTL COM 526107107 26,201 22,836 678.63 9,191 776.17 0.0056
2021-05-17 2021-03-31 13F LENNOX INTL COM 526107107 3,365 -77,755 -95.85 1,049 -95.28 0.0008
2021-02-16 2020-12-31 13F LENNOX INTL COM 526107107 81,120 25,357 45.47 22,224 46.19 0.0160
2020-11-16 2020-09-30 13F LENNOX INTL COM 526107107 55,763 19,853 55.29 15,202 81.69 0.0187
2020-08-14 2020-06-30 13F LENNOX INTL COM 526107107 35,910 32,707 1,021.14 8,367 1,337.63 0.0115
2020-05-14 2020-03-31 13F LENNOX INTL COM 526107107 3,203 -11,334 -77.97 582 -83.59 0.0013
2020-02-14 2019-12-31 13F LENNOX INTL COM 526107107 14,537 -56,169 -79.44 3,547 -79.35 0.0044
2019-11-14 2019-09-30 13F LENNOX INTL COM 526107107 70,706 66,725 1,676.09 17,179 1,468.86 0.0272
2019-08-15 2019-06-30 13F/A-1 LENNOX INTL COM 526107107 3,981 1,680 73.01 1,095 80.10 0.0016
2019-08-14 2019-06-30 13F LENNOX INTL COM 526107107 3,981 1,680 1,095
2019-05-14 2019-03-31 13F LENNOX INTL COM 526107107 2,301 -195,803 -98.84 608 -98.60 0.0009
2019-02-15 2018-12-31 13F/A-1 LENNOX INTL COM 526107107 198,104 -23,129 -10.45 43,357 -10.27 0.0676
2019-02-14 2018-12-31 13F LENNOX INTL COM 526107107 198,104 43,357
2018-11-14 2018-09-30 13F LENNOX INTL COM 526107107 221,233 -47,831 -17.78 48,317 -10.28 0.0592
2018-08-14 2018-06-30 13F LENNOX INTL COM 526107107 269,064 243,900 969.24 53,853 947.11 0.0703
2018-05-15 2018-03-31 13F LENNOX INTL COM 526107107 25,164 8,154 47.94 5,143 45.16 0.0069
2018-02-14 2017-12-31 13F LENNOX INTL COM 526107107 17,010 15,395 953.25 3,543 1,125.95 0.0049
2017-11-14 2017-09-30 13F LENNOX INTL COM 526107107 1,615 1,615 289 0.0004
2017-08-14 2017-06-30 13F LENNOX INTL COM 526107107 0 -181,307 -100.00 0 -100.00
2017-05-15 2017-03-31 13F LENNOX INTL COM 526107107 181,307 -6,575 -3.50 30,333 5.40 0.0556
2017-02-14 2016-12-31 13F LENNOX INTL COM 526107107 187,882 183,468 4,156.50 28,778 4,052.67 0.0603
2016-11-14 2016-09-30 13F LENNOX INTL COM 526107107 4,414 4,414 0.00 693 0.0012
2016-05-16 2016-03-31 13F LENNOX INTL COM 526107107 0 -81,666 -100.00 0 -100.00
2016-02-16 2015-12-31 13F LENNOX INTL COM 526107107 81,666 81,666 0.00 10,200 0.0214
2015-08-14 2015-06-30 13F LENNOX INTL COM 526107107 0 -216,950 -100.00 0 -100.00
2015-05-15 2015-03-31 13F LENNOX INTL COM 526107107 216,950 -183,134 -45.77 24,231 -36.29 0.0451
2015-02-17 2014-12-31 13F LENNOX INTL COM 526107107 400,084 51,670 14.83 38,036 42.02 0.0806
2014-11-14 2014-09-30 13F LENNOX INTL COM 526107107 348,414 139,309 66.62 26,783 43.00 0.0678
2014-08-14 2014-06-30 13F LENNOX INTL COM 526107107 209,105 188,288 904.49 18,730 889.96 0.0519
2014-05-15 2014-03-31 13F LENNOX INTL COM 526107107 20,817 -200,266 -90.58 1,892 -89.94 0.0055
2014-02-14 2013-12-31 13F LENNOX INTL COM 526107107 221,083 -182,325 -45.20 18,805 -38.06 0.0593
2013-11-14 2013-09-30 13F LENNOX INTL COM 526107107 403,408 257,823 177.09 30,360 223.12 0.0978
2013-08-14 2013-06-30 13F LENNOX INTL COM 526107107 145,585 145,585 9,396 0.0288
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F LENNOX INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F LENNOX INTL COM Call 400 224 n/a n/a n/a
2020-02-14 2019-12-31 13F LENNOX INTL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F LENNOX INTL COM Call 12,500 3,037 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-14 2025-06-30 13F LENNOX INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F LENNOX INTL COM Put 400 224 n/a n/a n/a
2025-02-14 2024-12-31 13F LENNOX INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F LENNOX INTL COM Put 2,600 1,571 n/a n/a n/a
2020-05-14 2020-03-31 13F LENNOX INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F LENNOX INTL COM Put 75,000 61.99 18,298 62.66 n/a n/a n/a
2019-11-14 2019-09-30 13F LENNOX INTL COM Put 46,300 -11.81 11,249 -22.09 n/a n/a n/a
2019-08-15 2019-06-30 13F/A LENNOX INTL COM Put 52,500 -65.00 14,438 -63.60 n/a n/a n/a
2019-08-14 2019-06-30 13F TIMKEN COM Put 30,000 1,540 n/a n/a n/a
2019-05-14 2019-03-31 13F LENNOX INTL COM Put 150,000 39,660 n/a n/a n/a
2015-02-17 2014-12-31 13F LENNOX INTL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2014-11-14 2014-09-30 13F LENNOX INTL COM Put 2,700 208 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.