Lennox International Inc.
MX ˙ BMV ˙ GB00BYQ46T41
SecurityMX:LII / Lennox International Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,089,220 shares
Latest Disclosed Value $ 505,542,043
Morgan Stanley reports 3.78% increase in ownership of LII / Lennox International Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,089,220 shares of Lennox International Inc. (MX:LII) valued at $505,542,043 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,049,559 shares of Lennox International Inc.. This represents a change in shares of 3.78% during the quarter.

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)
2026-05-15 2026-03-31 13F LENNOX INTL COM 526107107 1,089,220 39,661 3.78 505,542 -0.81 0.0305
2026-05-27 2025-12-31 13F/A-1 LENNOX INTL COM 526107107 1,049,559 -273,991 -20.70 509,646 -27.26 0.0304
2026-02-13 2025-12-31 13F LENNOX INTL COM 526107107 1,049,559 -273,991 509,646 0.0304
2026-05-27 2025-09-30 13F/A-1 LENNOX INTL COM 526107107 1,323,550 -78,393 -5.59 700,637 -12.82 0.0424
2025-11-14 2025-09-30 13F LENNOX INTL COM 526107107 1,323,550 -78,393 700,637 0.0424
2025-08-15 2025-06-30 13F LENNOX INTL COM 526107107 1,401,943 72,639 5.46 803,652 7.80 0.0524
2025-05-15 2025-03-31 13F LENNOX INTL COM 526107107 1,329,304 2,561 0.19 745,516 -7.78 0.0533
2025-05-15 2024-12-31 13F/A-1 LENNOX INTL COM 526107107 1,326,743 12,011 0.91 808,386 1.75 0.0566
2025-02-14 2024-12-31 13F LENNOX INTL COM 526107107 1,326,743 12,011 808,386 0.0566
2025-05-14 2024-09-30 13F/A-2 LENNOX INTL COM 526107107 1,314,732 886 0.07 794,481 13.03 0.0576
2025-02-14 2024-09-30 13F/A-1 LENNOX INTL COM 526107107 1,314,732 886 794,481 0.0576
2024-11-14 2024-09-30 13F LENNOX INTL COM 526107107 1,314,732 886 794,481 0.0576
2025-05-14 2024-06-30 13F/A-2 LENNOX INTL COM 526107107 1,313,846 -4,251 -0.32 702,883 9.10 0.0544
2024-10-17 2024-06-30 13F/A-1 LENNOX INTL COM 526107107 1,313,846 -4,251 702,883 0.0544
2024-08-14 2024-06-30 13F LENNOX INTL COM 526107107 1,313,846 -4,251 702,883 0.0544
2024-10-17 2024-03-31 13F/A-2 LENNOX INTL COM 526107107 1,318,097 -44,128 -3.24 644,234 5.68 0.0517
2024-08-16 2024-03-31 13F/A-1 LENNOX INTL COM 526107107 1,318,097 -44,128 644,234 0.0061
2024-05-15 2024-03-31 13F LENNOX INTL COM 526107107 1,318,097 -44,128 644,234 0.0517
2024-08-16 2023-12-31 13F/A-1 LENNOX INTL COM 526107107 1,362,225 -71,853 -5.01 609,624 13.53 0.0537
2024-02-13 2023-12-31 13F LENNOX INTL COM 526107107 1,362,225 -71,853 609,624 0.0537
2023-11-15 2023-09-30 13F LENNOX INTL COM 526107107 1,434,078 -230,573 -13.85 536,977 -1.07 0.0546
2023-08-14 2023-06-30 13F LENNOX INTL COM 526107107 1,664,651 -11,925 -0.71 542,793 28.84 0.0535
2023-05-15 2023-03-31 13F LENNOX INTL COM 526107107 1,676,576 -21,662 -1.28 421,290 3.70 0.0452
2023-02-14 2022-12-31 13F LENNOX INTL COM 526107107 1,698,238 1,409,350 487.85 406,270 531.56 0.0461
2022-11-14 2022-09-30 13F LENNOX INTL COM 526107107 288,888 105,872 57.85 64,328 70.14 0.0088
2022-10-27 2022-06-30 13F/A-1 LENNOX INTL COM 526107107 183,016 83,958 84.76 37,809 48.03 0.0049
2022-08-15 2022-06-30 13F LENNOX INTL COM 526107107 183,016 83,958 37,809 0.0010
2022-10-27 2022-03-31 13F/A-1 LENNOX INTL COM 526107107 99,058 24,344 32.58 25,542 5.40 0.0034
2022-05-13 2022-03-31 13F LENNOX INTL COM 526107107 99,058 24,344 25,542 0.0034
2022-02-14 2021-12-31 13F LENNOX INTL COM 526107107 74,714 -68,479 -47.82 24,234 -42.47 0.0030
2021-11-15 2021-09-30 13F LENNOX INTL COM 526107107 143,193 43,808 44.08 42,123 20.82 0.0057
2021-08-23 2021-06-30 13F/A-1 LENNOX INTL COM 526107107 99,385 -6,832 -6.43 34,865 5.35 0.0046
2021-08-16 2021-06-30 13F LENNOX INTL COM 526107107 99,385 -6,832 34,865 0.0010
2021-05-17 2021-03-31 13F LENNOX INTL COM 526107107 106,217 -22,029 -17.18 33,096 -5.81 0.0049
2021-02-16 2020-12-31 13F LENNOX INTL COM 526107107 128,246 -9,557 -6.94 35,136 -6.47 0.0054
2020-11-13 2020-09-30 13F LENNOX INTL COM 526107107 137,803 77,554 128.72 37,566 167.62 0.0073
2020-08-14 2020-06-30 13F LENNOX INTL COM 526107107 60,249 44,666 286.63 14,037 395.48 0.0031
2020-05-26 2020-03-31 13F/A-1 LENNOX INTL COM 526107107 15,583 -36,097 -69.85 2,833 -77.53 0.0008
2020-05-15 2020-03-31 13F LENNOX INTL COM 526107107 15,583 -36,097 2,833 217.6335
2020-02-14 2019-12-31 13F LENNOX INTL COM 526107107 51,680 15,754 43.85 12,608 44.42 0.0029
2019-11-14 2019-09-30 13F LENNOX INTL COM 526107107 35,926 4,379 13.88 8,730 0.62 0.0023
2019-08-14 2019-06-30 13F LENNOX INTL COM 526107107 31,547 -3,159 -9.10 8,676 -5.45 0.0023
2019-05-15 2019-03-31 13F LENNOX INTL COM 526107107 34,706 8,450 32.18 9,176 59.67 0.0026
2019-02-14 2018-12-31 13F LENNOX INTL COM 526107107 26,256 -140,158 -84.22 5,747 -84.19 0.0017
2019-04-23 2018-09-30 13F/A-2 LENNOX INTL COM 526107107 166,414 20,692 14.20 36,344 24.61 0.0091
2018-11-20 2018-09-30 13F/A-1 LENNOX INTL COM 526107107 166,414 0 36,344 0.0091
2018-11-14 2018-09-30 13F LENNOX INTL COM 526107107 166,414 20,692 36,344
2019-04-23 2018-06-30 13F/A-1 LENNOX INTL COM 526107107 145,722 -30,155 -17.15 29,166 -18.85 0.0079
2018-08-14 2018-06-30 13F LENNOX INTL COM 526107107 145,722 -30,155 29,166
2019-04-23 2018-03-31 13F/A-1 LENNOX INTL COM 526107107 175,877 -158,755 -47.44 35,942 -48.43 0.0100
2018-05-14 2018-03-31 13F LENNOX INTL COM 526107107 175,877 -158,755 35,942
2019-04-23 2017-12-31 13F/A-1 LENNOX INTL COM 526107107 334,632 -54,297 -13.96 69,691 0.12 0.0191
2018-02-14 2017-12-31 13F LENNOX INTL COM 526107107 334,632 -54,297 69,691
2017-11-14 2017-09-30 13F LENNOX INTL COM 526107107 388,929 170,025 77.67 69,606 73.14 0.0208
2017-08-11 2017-06-30 13F LENNOX INTL COM 526107107 218,904 -151,534 -40.91 40,201 -35.13 0.0121
2017-05-22 2017-03-31 13F/A-1 LENNOX INTL COM 526107107 370,438 -24,984 -6.32 61,974 2.32 0.0190
2017-05-12 2017-03-31 13F LENNOX INTL COM 526107107 370,438 61,974
2017-02-22 2016-12-31 13F/A-1 LENNOX INTL COM 526107107 395,422 7,306 1.88 60,567 -0.62 0.0198
2017-02-13 2016-12-31 13F LENNOX INTL COM 526107107 395,422 60,567
2016-11-10 2016-09-30 13F LENNOX INTL COM 526107107 388,116 239,388 160.96 60,946 187.36 0.0208
2016-08-12 2016-06-30 13F LENNOX INTL COM 526107107 148,728 -58,420 -28.20 21,209 -24.26 0.0077
2016-05-12 2016-03-31 13F LENNOX INTL COM 526107107 207,148 109,743 112.67 28,004 130.16 0.0108
2016-02-09 2015-12-31 13F LENNOX INTL COM 526107107 97,405 -91,715 -48.50 12,167 -43.23 0.0044
2016-02-08 2015-09-30 13F/A-1 LENNOX INTL COM 526107107 189,120 114,363 152.98 21,433 166.25 0.0079
2015-11-09 2015-09-30 13F LENNOX INTL COM 526107107 189,120 21,433
2015-08-12 2015-06-30 13F LENNOX INTL COM 526107107 74,757 16,609 28.56 8,050 23.94 0.0028
2015-05-14 2015-03-31 13F LENNOX INTL COM 526107107 58,148 -86,848 -59.90 6,495 -52.88 0.0024
2015-02-13 2014-12-31 13F LENNOX INTL COM 526107107 144,996 -106,945 -42.45 13,784 -28.83 0.0050
2014-12-16 2014-09-30 13F/A-1 LENNOX INTL COM 526107107 251,941 141,058 127.21 19,367 92.13 0.0074
2014-11-14 2014-09-30 13F LENNOX INTL COM 526107107 251,941 19,367
2014-05-13 2014-03-31 13F LENNOX INTL COM 526107107 110,883 -145,889 -56.82 10,080 -53.85 0.0042
2014-02-13 2013-12-31 13F LENNOX INTL COM 526107107 256,772 216,374 535.61 21,840 618.42 0.0093
2013-11-13 2013-09-30 13F LENNOX INTL INC COM ST COM 526107107 40,398 4,075 11.22 3,040 29.69 0.0014
2013-08-08 2013-06-30 13F LENNOX INTL INC COM ST COM 526107107 36,323 36,323 2,344 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.