Lennox International Inc.
US ˙ NYSE ˙ US5261071071

SecurityLII / Lennox International Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership320,373 shares
Latest Disclosed Value $ 148,651,495
Dimensional Fund Advisors Lp reports 2.14% increase in ownership of LII / Lennox International Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 320,373 shares of Lennox International Inc. (US:LII) valued at $148,694,720 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 313,668 shares of Lennox International Inc.. This represents a change in shares of 2.14% during the quarter. The current value of the position is $162,887,244 USD.

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.

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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)
2026-05-07 2026-03-31 13F LENNOX INTL COM 526107107 320,373 6,705 2.14 148,651 -2.41 0.0067
2026-02-12 2025-12-31 13F LENNOX INTL COM 526107107 313,668 2,009 0.64 152,330 -7.65 0.0320
2025-11-12 2025-09-30 13F LENNOX INTL COM 526107107 311,659 8,380 2.76 164,955 -5.11 0.0354
2025-08-12 2025-06-30 13F LENNOX INTL COM 526107107 303,279 21,880 7.78 173,844 10.17 0.0402
2025-05-13 2025-03-31 13F LENNOX INTL COM 526107107 281,399 2,014 0.72 157,791 -7.31 0.0392
2025-02-13 2024-12-31 13F LENNOX INTL COM 526107107 279,385 6,992 2.57 170,242 3.43 0.0409
2024-11-07 2024-09-30 13F LENNOX INTL COM 526107107 272,393 13,333 5.15 164,604 18.76 0.0399
2024-08-09 2024-06-30 13F LENNOX INTL COM 526107107 259,060 46,259 21.74 138,608 33.27 0.0362
2024-05-10 2024-03-31 13F LENNOX INTL COM 526107107 212,801 -14,928 -6.56 104,009 2.06 0.0282
2024-02-07 2023-12-31 13F LENNOX INTL COM 526107107 227,729 11,402 5.27 101,914 25.80 0.0298
2023-11-09 2023-09-30 13F LENNOX INTL COM 526107107 216,327 3,725 1.75 81,011 16.86 0.0266
2023-08-09 2023-06-30 13F LENNOX INTL COM 526107107 212,602 2,095 1.00 69,321 31.07 0.0221
2023-05-12 2023-03-31 13F LENNOX INTL COM 526107107 210,507 2,223 1.07 52,891 107,838.78 0.0178
2023-02-09 2022-12-31 13F LENNOX INTL COM 526107107 208,284 3,635 1.78 50 -99.89 0.0147
2022-11-10 2022-09-30 13F LENNOX INTL COM 526107107 204,649 2,047 1.01 45,570 8.89 0.0175
2022-08-12 2022-06-30 13F LENNOX INTL COM 526107107 202,602 -4,591 -2.22 41,849 -21.68 0.0150
2022-05-13 2022-03-31 13F LENNOX INTL COM 526107107 207,193 1,856 0.90 53,436 -19.77 0.0165
2022-02-09 2021-12-31 13F LENNOX INTL COM 526107107 205,337 509 0.25 66,601 10.52 0.0201
2021-11-12 2021-09-30 13F LENNOX INTL COM 526107107 204,828 -557 -0.27 60,261 -16.36 0.0194
2021-08-12 2021-06-30 13F LENNOX INTL COM 526107107 205,385 2,702 1.33 72,045 14.07 0.0228
2021-05-14 2021-03-31 13F LENNOX INTL COM 526107107 202,683 2,890 1.45 63,160 15.39 0.0209
2021-03-08 2020-12-31 13F/A-2 LENNOX INTL COM 526107107 199,793 6,336 3.28 54,735 3.79 0.0198
2021-02-11 2020-12-31 13F LENNOX INTL COM 526107107 199,793 6,336 54,735 19,767.3727
2020-11-12 2020-09-30 13F LENNOX INTL COM 526107107 193,457 120 0.06 52,737 17.09 0.0224
2020-08-13 2020-06-30 13F LENNOX INTL COM 526107107 193,337 10,815 5.93 45,041 35.71 0.0198
2020-05-14 2020-03-31 13F LENNOX INTL COM 526107107 182,522 -12,686 -6.50 33,188 -30.31 0.0173
2020-02-14 2019-12-31 13F LENNOX INTL COM 526107107 195,208 -3,342 -1.68 47,623 -1.28 0.0174
2019-11-12 2019-09-30 13F LENNOX INTL COM 526107107 198,550 -25,090 -11.22 48,240 -21.56 0.0187
2019-08-13 2019-06-30 13F LENNOX INTL COM 526107107 223,640 1,200 0.54 61,500 4.57 0.0239
2019-08-12 2019-03-31 13F/A-2 LENNOX INTL COM 526107107 222,440 -652 -0.29 58,814 20.45 0.0234
2019-05-10 2019-03-31 13F LENNOX INTL COM 526107107 222,440 -652 58,814
2019-02-26 2018-12-31 13F/A-1 LENNOX INTL COM 526107107 223,092 11,274 5.32 48,827 5.55 0.0221
2019-02-13 2018-12-31 13F LENNOX INTL COM 526107107 223,092 11,274 48,827
2018-11-13 2018-09-30 13F LENNOX INTL COM 526107107 211,818 22,176 11.69 46,259 21.90 0.0176
2018-08-10 2018-06-30 13F LENNOX INTL COM 526107107 189,642 -2,039 -1.06 37,948 -3.13 0.0151
2018-05-11 2018-03-31 13F LENNOX INTL COM 526107107 191,681 2,849 1.51 39,174 -0.40 0.0163
2018-02-12 2017-12-31 13F LENNOX INTL COM 526107107 188,832 584 0.31 39,330 16.75 0.0163
2017-11-13 2017-09-30 13F LENNOX INTL COM 526107107 188,248 1,433 0.77 33,687 -1.81 0.0147
2017-08-11 2017-06-30 13F LENNOX INTL COM 526107107 186,815 -3,828 -2.01 34,307 7.56 0.0158
2017-05-12 2017-03-31 13F LENNOX INTL COM 526107107 190,643 4,824 2.60 31,895 12.05 0.0152
2017-02-09 2016-12-31 13F LENNOX INTL COM 526107107 185,819 2,312 1.26 28,465 -1.21 0.0142
2016-11-10 2016-09-30 13F LENNOX INTL COM 526107107 183,507 4,762 2.66 28,815 13.07 0.0156
2016-08-09 2016-06-30 13F LENNOX INTL COM 526107107 178,745 -33,237 -15.68 25,484 -11.08 0.0147
2016-05-13 2016-03-31 13F LENNOX INTL COM 526107107 211,982 4,121 1.98 28,658 10.38 0.0172
2016-02-10 2015-12-31 13F LENNOX INTL COM 526107107 207,861 4,317 2.12 25,964 12.56 0.0162
2015-11-13 2015-09-30 13F LENNOX INTL COM 526107107 203,544 2,607 1.30 23,067 6.60 0.0151
2015-08-14 2015-06-30 13F LENNOX INTL COM 526107107 200,937 9,359 4.89 21,639 1.14 0.0133
2015-05-14 2015-03-31 13F LENNOX INTL COM 526107107 191,578 16,813 9.62 21,396 28.77 0.0135
2015-02-06 2014-12-31 13F LENNOX INTL COM 526107107 174,765 18,321 11.71 16,616 38.16 0.0109
2014-11-13 2014-09-30 13F LENNOX INTL COM 526107107 156,444 2,300 1.49 12,027 -12.89 0.0085
2014-08-08 2014-06-30 13F LENNOX INTL COM 526107107 154,144 47,851 45.02 13,807 42.90 0.0096
2014-05-14 2014-03-31 13F LENNOX INTL COM 526107107 106,293 3,114 3.02 9,662 10.10 0.0072
2014-02-12 2013-12-31 13F LENNOX INTL COM 526107107 103,179 -730 -0.70 8,776 12.24 0.0068
2013-11-13 2013-09-30 13F LENNOX INTL COM 526107107 103,909 2,465 2.43 7,819 19.41 0.0068
2013-08-15 2013-06-30 13F LENNOX INTL COM 526107107 101,444 101,444 6,548 0.0062
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.