PRTS
CarParts.com, Inc.Marquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Renaissance Technologies | Q3 2024(8Q snapshot) | 7Q | $0.78 | $0.66 | -15% |
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $0.75 | $0.66 | -12% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Two Sigma Investments | Q3 2024 | Q2 2026 | → $0.68 | -9% |
| Millennium Management | Q3 2024 | Q1 2026 | → $0.72 | -4% |
| D.E. Shaw | Q3 2024 | Q3 2025 | → $0.76 | +1% |
| AQR Capital Management | Q3 2024 | Q1 2025 | → $1.10 | +47% |
| Maverick Capital | Q3 2022 | Q4 2022 | → $50 | -45% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at CarParts.com, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from May 19, 2026 — the most recent Form 4 on file — not from today.
- Form 40001378950-26-000068May 19, 2026
- Form 40001378950-26-000066May 19, 2026
- Form 40001378950-26-000064May 19, 2026
- Form 40001378950-26-000062May 19, 2026
- Form 40001378950-26-000060May 19, 2026
- Form 40001378950-26-000044Apr 9, 2026
- Form 40001378950-26-000042Apr 9, 2026
- Form 40001378950-26-000040Apr 9, 2026
- Form 40001378950-26-000038Apr 7, 2026
- Form 40001378950-26-000025Feb 9, 2026
- Form 40001378950-26-000023Feb 9, 2026
- Form 40001378950-26-000021Feb 9, 2026
- Form 40001378950-26-000019Jan 20, 2026
- Form 40001378950-26-000017Jan 20, 2026
- Form 40001378950-26-000015Jan 20, 2026
Fundamentals
XBRL · CarParts.com, Inc.Annual figures sourced directly from CarParts.com, Inc.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for CarParts.com, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventJun 9, 2026
- S-3Registration (shelf)Jun 8, 2026
- 8-KMaterial eventJun 8, 2026
- 8-KMaterial eventMay 21, 2026
- 8-KMaterial eventMay 11, 2026
- 8-KMaterial eventMay 11, 2026
- 10-QQuarterly reportMay 8, 2026
- 8-KMaterial eventMay 7, 2026
- DEF 14AProxy statementMar 31, 2026
- 8-KMaterial eventMar 25, 2026
- 10-KAnnual reportMar 5, 2026
- 8-KMaterial eventMar 5, 2026
- S-3FORM S-3Jan 14, 2026
- 8-KMaterial eventDec 15, 2025
- 8-KMaterial eventNov 14, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q2 2026 | open | $0.68 | $0.66 | -3% |
| Citadel Advisors | Q4 2025 | Q1 2026 | $0.54 | $0.72 | +33% |
| Citadel Advisors | Q3 2024 | Q4 2024 | $0.75 | $0.94 | +25% |
| Two Sigma Investments | Q3 2024 | Q2 2026 | $0.75 | $0.68 | -9% |
| D.E. Shaw | Q3 2024 | Q3 2025 | $0.75 | $0.76 | +1% |
| AQR Capital Management | Q3 2024 | Q1 2025 | $0.75 | $1.10 | +47% |
| Millennium Management | Q3 2024 | Q1 2026 | $0.75 | $0.72 | -4% |
| Renaissance Technologies | Q3 2024 | open | $0.78 | $0.66 | -15% |
| Maverick Capital | Q3 2022 | Q4 2022 | $90 | $50 | -45% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.