AutoNation, Inc.
US ˙ NYSE ˙ US05329W1027

SecurityAN / AutoNation, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership12,258 shares
Latest Disclosed Value $ 2,395,887
Janus Henderson Group Plc ownership in AN / AutoNation, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 12,258 shares of AutoNation, Inc. (US:AN) valued at $2,393,497 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,258 shares of AutoNation, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,332,084 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 AUTONATION COM 05329W102 12,258 0 0.00 2,396 -5.34 0.0004
2026-05-15 2026-03-31 13F AUTONATION COM 05329W102 12,258 0 0.00 2,396 -5.34 0.0004
2026-02-17 2025-12-31 13F AUTONATION COM 05329W102 12,258 0 0.00 2,530 -5.67 0.0011
2025-11-14 2025-09-30 13F AUTONATION COM 05329W102 12,258 0 0.00 2,683 10.23 0.0012
2025-08-14 2025-06-30 13F AUTONATION COM 05329W102 12,258 1,100 9.86 2,434 37.07 0.0012
2025-05-15 2025-03-31 13F AUTONATION COM 05329W102 11,158 0 0.00 1,775 -6.28 0.0010
2025-02-14 2024-12-31 13F AUTONATION COM 05329W102 11,158 0 0.00 1,894 -5.11 0.0010
2024-11-14 2024-09-30 13F AUTONATION COM 05329W102 11,158 -656 -5.55 1,996 6.11 0.0010
2024-08-14 2024-06-30 13F AUTONATION COM 05329W102 11,814 -5,801 -32.93 1,881 -35.52 0.0010
2024-05-15 2024-03-31 13F AUTONATION COM 05329W102 17,615 44 0.25 2,918 10.58 0.0016
2024-02-14 2023-12-31 13F AUTONATION COM 05329W102 17,571 -1,354 -7.15 2,639 -7.96 0.0016
2023-11-14 2023-09-30 13F AUTONATION COM 05329W102 18,925 540 2.94 2,866 -5.32 0.0019
2023-08-14 2023-06-30 13F AUTONATION COM 05329W102 18,385 -129 -0.70 3,027 21.71 0.0019
2023-05-15 2023-03-31 13F AUTONATION COM 05329W102 18,514 11,223 153.93 2,488 218.03 0.0016
2023-02-14 2022-12-31 13F AUTONATION COM 05329W102 7,291 -6,321 -46.44 782 -43.54 0.0006
2023-01-13 2022-09-30 13F/A-1 AUTONATION COM 05329W102 13,612 -821 -5.69 1,385 -14.19 0.0010
2022-11-14 2022-09-30 13F AUTONATION COM 05329W102 13,612 -821 1,385 0.0010
2022-08-15 2022-06-30 13F AUTONATION COM 05329W102 14,433 6,344 78.43 1,614 100.75 0.0011
2022-05-16 2022-03-31 13F AUTONATION COM 05329W102 8,089 -1,237 -13.26 804 -26.24 0.0004
2022-02-14 2021-12-31 13F AUTONATION COM 05329W102 9,326 4,770 104.70 1,090 96.40 0.0005
2021-11-16 2021-09-30 13F AUTONATION COM 05329W102 4,556 -21,151 -82.28 555 -77.23 0.0002
2021-08-16 2021-06-30 13F AUTONATION COM 05329W102 25,707 25,707 2,437 0.0010
2018-08-10 2018-06-30 13F AUTONATION COM 05329W102 0 -30,772 -100.00 0 -100.00
2018-05-14 2018-03-31 13F AUTONATION COM 05329W102 30,772 19,000 161.40 1,440 138.41 0.0008
2018-03-12 2017-12-31 13F/A-1 AUTONATION COM 05329W102 11,772 3,500 42.31 604 53.69 0.0004
2018-02-09 2017-12-31 13F AUTONATION COM 05329W102 11,772 3,500 604
2017-11-14 2017-09-30 13F AUTONATION COM 05329W102 8,272 1,600 23.98 393 39.86 0.0003
2017-08-17 2017-06-30 13F/A-1 AUTONATION COM 05329W102 6,672 2,500 59.92 281 59.66 0.0002
2017-08-14 2017-06-30 13F AUTONATION COM 05329W102 6,672 2,500 281
2017-05-03 2017-03-31 13F AUTONATION COM 05329W102 4,172 0 0.00 176 -13.30 0.0012
2017-01-30 2016-12-31 13F AUTONATION COM 05329W102 4,172 0 0.00 203 0.00 0.0015
2016-10-24 2016-09-30 13F AUTONATION COM 05329W102 4,172 0 0.00 203 3.57 0.0015
2016-07-29 2016-06-30 13F AUTONATION COM 05329W102 4,172 0 0.00 196 0.51 0.0016
2016-05-12 2016-03-31 13F AUTONATION COM 05329W102 4,172 0 0.00 195 -21.69 0.0016
2016-02-03 2015-12-31 13F AUTONATION COM 05329W102 4,172 0 0.00 249 2.47 0.0020
2015-11-16 2015-09-30 13F AUTONATION COM 05329W102 4,172 0 0.00 243 -7.60 0.0021
2015-08-17 2015-06-30 13F AUTONATION COM 05329W102 4,172 0 0.00 263 -1.87 0.0021
2015-06-02 2015-03-31 13F/A-1 AUTONATION COM 05329W102 4,172 -8,317 -66.59 268 -64.46 0.0021
2015-05-15 2015-03-31 13F AUTONATION COM 05329W102 4,172 268
2015-02-12 2014-12-31 13F AUTONATION COM 05329W102 12,489 0 0.00 754 20.06 0.0054
2014-11-12 2014-09-30 13F AUTONATION COM 05329W102 12,489 0 0.00 628 -15.70 0.0059
2014-08-13 2014-06-30 13F AUTONATION COM 05329W102 12,489 12,489 745 0.0070
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.