A. O. Smith Corporation
US ˙ NYSE ˙ US8318652091

SecurityAOS / A. O. Smith Corporation
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership50,179 shares
Latest Disclosed Value $ 3,308,803
Janus Henderson Group Plc reports 0.51% decrease in ownership of AOS / A. O. Smith Corporation

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 50,179 shares of A. O. Smith Corporation (US:AOS) valued at $3,308,803 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 50,437 shares of A. O. Smith Corporation. This represents a change in shares of -0.51% during the quarter. The current value of the position is $2,870,239 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)
2026-05-18 2026-03-31 13F/A-1 SMITH A O COM 831865209 50,179 -258 -0.51 3,309 -1.93 0.0006
2026-05-15 2026-03-31 13F SMITH A O COM 831865209 50,179 -258 3,309 0.0006
2026-02-17 2025-12-31 13F SMITH A O COM 831865209 50,437 -3,731 -6.89 3,374 -15.19 0.0015
2025-11-14 2025-09-30 13F SMITH A O COM 831865209 54,168 -13,779 -20.28 3,977 -10.73 0.0018
2025-08-14 2025-06-30 13F SMITH A O COM 831865209 67,947 54,428 402.60 4,455 402.82 0.0022
2025-05-15 2025-03-31 13F SMITH A O COM 831865209 13,519 544 4.19 887 0.23 0.0005
2025-02-14 2024-12-31 13F SMITH A O COM 831865209 12,975 -1,028 -7.34 885 -29.67 0.0004
2024-11-14 2024-09-30 13F SMITH A O COM 831865209 14,003 5,900 72.81 1,258 89.59 0.0006
2024-08-14 2024-06-30 13F SMITH A O COM 831865209 8,103 -627 -7.18 663 -15.00 0.0004
2024-05-15 2024-03-31 13F SMITH A O COM 831865209 8,730 -1,198 -12.07 781 -4.65 0.0004
2024-02-14 2023-12-31 13F SMITH A O COM 831865209 9,928 -31,352 -75.95 819 -70.04 0.0005
2023-11-14 2023-09-30 13F SMITH A O COM 831865209 41,280 -3,512 -7.84 2,730 -16.23 0.0018
2023-08-14 2023-06-30 13F SMITH A O COM 831865209 44,792 33,102 283.17 3,260 303.34 0.0020
2023-05-15 2023-03-31 13F SMITH A O COM 831865209 11,690 5,918 102.53 808 144.85 0.0005
2023-02-14 2022-12-31 13F SMITH A O COM 831865209 5,772 -98,750 -94.48 330 -93.50 0.0002
2023-01-13 2022-09-30 13F/A-1 SMITH A O COM 831865209 104,522 -4,466 -4.10 5,078 -14.80 0.0038
2022-11-14 2022-09-30 13F SMITH A O COM 831865209 104,522 -4,466 5,078 0.0038
2022-08-15 2022-06-30 13F SMITH A O COM 831865209 108,988 57,922 113.43 5,960 82.60 0.0041
2022-05-16 2022-03-31 13F SMITH A O COM 831865209 51,066 35,981 238.52 3,264 152.05 0.0016
2022-02-14 2021-12-31 13F SMITH A O COM 831865209 15,085 -31,038 -67.29 1,295 -54.03 0.0005
2021-11-16 2021-09-30 13F SMITH A O COM 831865209 46,123 24,621 114.51 2,817 81.86 0.0012
2021-08-16 2021-06-30 13F SMITH A O COM 831865209 21,502 -79,025 -78.61 1,549 -77.21 0.0007
2021-05-17 2021-03-31 13F SMITH A O COM 831865209 100,527 -139,495 -58.12 6,796 -48.35 0.0031
2021-02-16 2020-12-31 13F SMITH A O COM 831865209 240,022 103,422 75.71 13,158 82.45 0.0061
2020-11-16 2020-09-30 13F SMITH A O COM 831865209 136,600 -25,581 -15.77 7,212 -5.63 0.0038
2020-08-14 2020-06-30 13F SMITH A O COM 831865209 162,181 123,454 318.78 7,642 421.99 0.0043
2020-05-14 2020-03-31 13F SMITH A O COM 831865209 38,727 -117,459 -75.20 1,464 -80.33 0.0010
2020-02-18 2019-12-31 13F SMITH A O COM 831865209 156,186 -65,725 -29.62 7,441 -29.72 0.0038
2019-11-14 2019-09-30 13F SMITH A O COM 831865209 221,911 -180,964 -44.92 10,587 -44.28 0.0057
2019-07-31 2019-06-30 13F SMITH A O COM 831865209 402,875 -501,528 -55.45 19,000 -60.60 0.0103
2019-04-30 2019-03-31 13F SMITH A O COM 831865209 904,403 -5,033,336 -84.77 48,221 -80.98 0.0267
2019-02-06 2018-12-31 13F SMITH A O COM 831865209 5,937,739 -755,737 -11.29 253,564 -29.02 0.1617
2018-11-09 2018-09-30 13F SMITH A O COM 831865209 6,693,476 -314,997 -4.49 357,228 -13.83 0.1909
2018-08-10 2018-06-30 13F SMITH A O COM 831865209 7,008,473 36,879 0.53 414,554 -6.49 0.2363
2018-05-14 2018-03-31 13F SMITH A O COM 831865209 6,971,594 -118,085 -1.67 443,325 2.04 0.2613
2018-03-12 2017-12-31 13F/A-1 SMITH A O COM 831865209 7,089,679 -486,501 -6.42 434,458 -3.51 0.2675
2018-02-09 2017-12-31 13F SMITH A O COM 831865209 7,089,679 -486,501 434,458
2017-11-14 2017-09-30 13F SMITH A O COM 831865209 7,576,180 -55,259 -0.72 450,255 4.74 0.2886
2017-08-17 2017-06-30 13F/A-1 SMITH A O COM 831865209 7,631,439 7,615,943 49,147.80 429,879 54,109.21 0.2930
2017-08-14 2017-06-30 13F SMITH A O COM 831865209 7,631,439 7,615,943 429,879
2017-05-03 2017-03-31 13F SMITH A O COM 831865209 15,496 1,000 6.90 793 15.60 0.0056
2017-01-30 2016-12-31 13F SMITH A O COM 831865209 14,496 8,548 143.71 686 16.67 0.0051
2016-10-24 2016-09-30 13F SMITH A O COM 831865209 5,948 0 0.00 588 12.21 0.0043
2016-07-29 2016-06-30 13F SMITH A O COM 831865209 5,948 5,948 524 0.0044
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.