Lennox International Inc.
US ˙ NYSE ˙ US5261071071

SecurityLII / Lennox International Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership76,750 shares
Latest Disclosed Value $ 35,621,978
Citigroup Inc reports 43.78% increase in ownership of LII / Lennox International Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 76,750 shares of Lennox International Inc. (US:LII) valued at $35,621,978 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 53,381 shares of Lennox International Inc.. This represents a change in shares of 43.78% during the quarter. The current value of the position is $39,549,275 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)
2026-05-11 2026-03-31 13F LENNOX INTL COM 526107107 76,750 23,369 43.78 35,622 37.43 0.0152
2026-02-13 2025-12-31 13F LENNOX INTL COM 526107107 53,381 -7,452 -12.25 25,921 -19.51 0.0114
2025-11-10 2025-09-30 13F LENNOX INTL COM 526107107 60,833 12,283 25.30 32,203 15.71 0.0144
2025-08-11 2025-06-30 13F LENNOX INTL COM 526107107 48,550 7,373 17.91 27,831 20.51 0.0137
2025-05-12 2025-03-31 13F LENNOX INTL COM 526107107 41,177 -20,251 -32.97 23,093 -38.30 0.0118
2025-02-12 2024-12-31 13F LENNOX INTL COM 526107107 61,428 27,418 80.62 37,428 82.12 0.0222
2024-11-12 2024-09-30 13F LENNOX INTL COM 526107107 34,010 14,392 73.36 20,552 95.82 0.0119
2024-08-12 2024-06-30 13F LENNOX INTL COM 526107107 19,618 -1,744 -8.16 10,495 0.53 0.0067
2024-05-10 2024-03-31 13F LENNOX INTL COM 526107107 21,362 1,780 9.09 10,441 19.14 0.0069
2024-02-09 2023-12-31 13F LENNOX INTL COM 526107107 19,582 3,343 20.59 8,763 44.13 0.0062
2023-12-06 2023-09-30 13F/A-1 LENNOX INTL COM 526107107 16,239 -8,382 -34.04 6,081 -24.27 0.0045
2023-11-09 2023-09-30 13F LENNOX INTL COM 526107107 16,239 -8,382 6,081 0.0018
2023-08-10 2023-06-30 13F LENNOX INTL COM 526107107 24,621 -5,173 -17.36 8,028 7.24 0.0053
2023-05-11 2023-03-31 13F LENNOX INTL COM 526107107 29,794 2,276 8.27 7,487 13.72 0.0052
2023-02-09 2022-12-31 13F LENNOX INTL COM 526107107 27,518 -7,704 -21.87 6,583 -16.08 0.0052
2022-11-10 2022-09-30 13F LENNOX INTL COM 526107107 35,222 3,947 12.62 7,844 21.41 0.0056
2022-08-10 2022-06-30 13F LENNOX INTL COM 526107107 31,275 -7,479 -19.30 6,461 -35.34 0.0048
2022-05-12 2022-03-31 13F LENNOX INTL COM 526107107 38,754 1,780 4.81 9,993 -16.68 0.0061
2022-02-10 2021-12-31 13F LENNOX INTL COM 526107107 36,974 -6,835 -15.60 11,993 -6.94 0.0064
2021-11-10 2021-09-30 13F LENNOX INTL COM 526107107 43,809 -3,920 -8.21 12,887 -23.04 0.0076
2021-08-10 2021-06-30 13F LENNOX INTL COM 526107107 47,729 -1,282 -2.62 16,744 9.65 0.0101
2021-05-13 2021-03-31 13F LENNOX INTL COM 526107107 49,011 -1,259 -2.50 15,271 10.88 0.0099
2021-02-11 2020-12-31 13F LENNOX INTL COM 526107107 50,270 11,435 29.45 13,772 30.08 0.0081
2020-11-12 2020-09-30 13F LENNOX INTL COM 526107107 38,835 -9,415 -19.51 10,587 -5.83 0.0069
2020-08-12 2020-06-30 13F LENNOX INTL COM 526107107 48,250 25,680 113.78 11,242 173.99 0.0088
2020-05-12 2020-03-31 13F LENNOX INTL COM 526107107 22,570 42 0.19 4,103 -25.35 0.0037
2020-02-12 2019-12-31 13F LENNOX INTL COM 526107107 22,528 -8,993 -28.53 5,496 -28.23 0.0040
2019-11-08 2019-09-30 13F LENNOX INTL COM 526107107 31,521 -15,663 -33.20 7,658 -40.98 0.0061
2019-08-12 2019-06-30 13F LENNOX INTL COM 526107107 47,184 6,282 15.36 12,975 19.98 0.0105
2019-05-13 2019-03-31 13F LENNOX INTL COM 526107107 40,902 12,291 42.96 10,814 72.69 0.0104
2019-02-12 2018-12-31 13F LENNOX INTL COM 526107107 28,611 4,116 16.80 6,262 17.05 0.0063
2018-11-13 2018-09-30 13F LENNOX INTL COM 526107107 24,495 5,522 29.10 5,350 40.90 0.0048
2018-08-10 2018-06-30 13F LENNOX INTL COM 526107107 18,973 -23,510 -55.34 3,797 -56.27 0.0035
2018-05-11 2018-03-31 13F LENNOX INTL COM 526107107 42,483 16,496 63.48 8,683 60.44 0.0072
2018-02-12 2017-12-31 13F LENNOX INTL COM 526107107 25,987 6,259 31.73 5,412 53.27 0.0043
2017-11-13 2017-09-30 13F LENNOX INTL COM 526107107 19,728 290 1.49 3,531 -1.06 0.0029
2017-08-11 2017-06-30 13F LENNOX INTL COM 526107107 19,438 2,280 13.29 3,569 24.36 0.0032
2017-05-12 2017-03-31 13F LENNOX INTL COM 526107107 17,158 -19,361 -53.02 2,870 -48.69 0.0026
2017-02-10 2016-12-31 13F LENNOX INTL COM 526107107 36,519 -6,407 -14.93 5,593 -17.03 0.0050
2016-11-10 2016-09-30 13F LENNOX INTL COM 526107107 42,926 13,200 44.41 6,741 59.02 0.0063
2016-08-12 2016-06-30 13F LENNOX INTL COM 526107107 29,726 3,907 15.13 4,239 21.46 0.0043
2016-05-13 2016-03-31 13F LENNOX INTL COM 526107107 25,819 -1,133 -4.20 3,490 3.68 0.0039
2016-02-12 2015-12-31 13F LENNOX INTL COM 526107107 26,952 25,093 1,349.81 3,366 1,502.86 0.0034
2015-11-13 2015-09-30 13F LENNOX INTL COM 526107107 1,859 -3,330 -64.17 210 -62.43 0.0002
2015-08-13 2015-06-30 13F LENNOX INTL COM 526107107 5,189 -4,383 -45.79 559 -47.71 0.0005
2015-05-14 2015-03-31 13F LENNOX INTL COM 526107107 9,572 -2,861 -23.01 1,069 -9.56 0.0010
2015-02-17 2014-12-31 13F LENNOX INTL COM 526107107 12,433 4,366 54.12 1,182 90.34 0.0011
2014-11-14 2014-09-30 13F LENNOX INTL COM 526107107 8,067 -9,049 -52.87 621 -59.49 0.0005
2014-08-14 2014-06-30 13F LENNOX INTL COM 526107107 17,116 13,963 442.85 1,533 434.15 0.0015
2014-05-15 2014-03-31 13F LENNOX INTL COM 526107107 3,153 -27,713 -89.78 287 -89.07 0.0003
2014-02-14 2013-12-31 13F LENNOX INTL COM 526107107 30,866 14,014 83.16 2,626 107.10 0.0024
2013-11-14 2013-09-30 13F LENNOX INTL COM 526107107 16,852 -1,347 -7.40 1,268 8.01 0.0012
2013-08-14 2013-06-30 13F LENNOX INTL COM 526107107 18,199 18,199 1,174 0.0012
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.