Quantum Portfolio Management LLC AN — AUTONATION INC

Ownership history in Quantum Portfolio Management LLC  ·  9 quarters on record

AI Ownership Summary

Quantum Portfolio Management LLC reported AUTONATION INC (AN) in 9 quarterly 13F filings from 2024 Q1 through 2026 Q1. Peak portfolio weight reached 0.63% in 2025 Q3. The latest visible filing shows AN at 0.50% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this AN ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Quantum Portfolio Management LLC's position in AUTONATION INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

AN was reported at 0.50% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.63% in 2025 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q1 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

AN stock page Quantum Portfolio Management LLC fund profile Quantum Portfolio Management LLC full holdings
How Quantum Portfolio Management LLC held AN — position size vs. price
% of Fund (quarterly)    AN price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 5,907 -56 -0.9% 0.50% $1.2M 2026-04-29 $205.69
2025 Q4 REDUCED 38.8% -5.4% ✅ 5,963 -3,785 -38.8% 0.54% $1.2M 2026-02-12 $206.60
2025 Q3 ADDED — — — 9,748 +7,057 +262.2% 0.63% $2.1M 2025-10-29 $196.47
2025 Q2 REDUCED — — — 2,691 -37 -1.4% 0.26% $535K 2025-08-13 $211.29
2025 Q1 ADDED — — — 2,728 +13 +0.5% 0.22% $442K 2025-05-14 $189.94
2024 Q4 ADDED — — — 2,715 +453 +20.0% 0.25% $461K 2025-01-23 $185.18
2024 Q3 ADDED — — — 2,262 +1,003 +79.7% 0.22% $405K 2024-10-24 $163.20
2024 Q2 REDUCED 15.0% +12.3% ❌ 1,259 -222 -15.0% 0.12% $201K 2024-08-06 $166.66
2024 Q1 INITIATED — — — 1,481 — — 0.14% $245K 2024-05-14 $170.57

🏢 Other funds also holding AN

As of 2026 Q1 — sorted by position size

BAYPOINTE PARTNERS LLC 4.02% GREATMARK INVESTMENT PARTNERS, INC. 3Y 7Y 3.78% VISION FINANCIAL MARKETS LLC 2.75% CONSCIOUS WEALTH INVESTMENTS, LLC 2.34% Garner Asset Management Corp 3Y 7Y 1.5% Davis Capital Management 3Y 1.2% Index Technologies Group LLC 0.77% IVC Wealth Advisors LLC 3Y 0.72% WEDGE CAPITAL MANAGEMENT L L P/NC 3Y 7Y 0.62% LECAP ASSET MANAGEMENT LTD 0.51%

FAQ About Quantum Portfolio Management LLC and AN

These are the practical questions this page is built to answer before you even open the full history table.

How long has Quantum Portfolio Management LLC reported owning AN?

Quantum Portfolio Management LLC reported AN across 9 quarterly 13F filings, from 2024 Q1 through 2026 Q1.

What was the largest reported AN position in Quantum Portfolio Management LLC's portfolio?

The largest reported portfolio weight for AN was 0.63% in 2025 Q3.

What is the latest reported AN position on this page?

The most recent filing on this page is 2026 Q1, when Quantum Portfolio Management LLC reported 5,907 shares, equal to 0.50% of portfolio, with an estimated market value of $1.2M.

What does the chart on this AN ownership page compare?

The chart compares Quantum Portfolio Management LLC's quarterly AN portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Quantum Portfolio Management LLC time their AN position?

Based on 13F filing dates vs. subsequent AN price moves, Quantum Portfolio Management LLC correctly timed 7 out of 8 reported position changes (88%). The annualised alpha on AN relative to SPY over the holding period was -7.1%.

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