New Positions
7 managers initiated
Top five by reported value
Carparts.Com Inc NASDAQ NMS - GLOBAL MARKET:PRTS
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
7 new15 added25 reduced16 exited
Total Institutional Holders
47
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$1.3M
Largest QoQ Increase
MACKENZIE FINANCIAL CORP
+277,807 sh
Largest QoQ Decrease
OAKTOP CAPITAL MANAGEMENT II, L.P.
-4,597,302 sh
New Positions(7)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Lotus Technology Management, LP | 159,584 | +159,584 | $79.8K | +$79.8K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 111,482 | +111,482 | $55.7K | +$55.7K | — |
| Fragasso Group Inc. | 64,039 | +64,039 | $32.0K | +$32.0K | — |
| CULLEN/FROST BANKERS, INC. | 50,000 | +50,000 | $25.0K | +$25.0K | — |
| JANE STREET GROUP, LLC | 20,100 | +20,100 | $10.1K | +$10.1K | — |
| StoneX Group Inc. | 10,010 | +10,010 | $5.0K | +$5.0K | — |
| Root Financial Partners, LLC | 50 | +50 | $25 | +$25 | — |
Added To(15)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 2,681,587 | +127,486 | $1.3M | -$475.2K | 5.0% |
| RENAISSANCE TECHNOLOGIES LLC | 1,352,700 | +35,900 | $676.4K | -$260.0K | 2.7% |
| MACKENZIE FINANCIAL CORP | 1,779,674 | +277,807 | $879.6K | -$188.4K | 18.5% |
| GEODE CAPITAL MANAGEMENT, LLC | 649,984 | +84,064 | $325.1K | -$77.5K | 14.8% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1,248 | +1,148 | $71.0K | +$70.9K | 1148.0% |
| FMR LLC | 623,643 | +111,700 | $311.8K | -$52.2K | 21.8% |
| Argentarii, LLC | 150,000 | +100,000 | $75.0K | +$39.4K | 200.0% |
| STATE STREET CORP | 237,938 | +27,800 | $119.0K | -$30.5K | 13.2% |
| SIMPLEX TRADING, LLC | 40,928 | +29,246 | $20.5K | +$20.5K | 250.3% |
| NORTHERN TRUST CORP | 142,115 | +25,948 | $71.1K | -$11.5K | 22.3% |
| Williams & Novak, LLC | 188,500 | +40,900 | $94.3K | -$10.7K | 27.7% |
| BARCLAYS PLC | 130,818 | +1,566 | $96.8K | +$4.9K | 1.2% |
| BANK OF AMERICA CORP /DE/ | 20,049 | +13 | $10.0K | -$4.2K | 0.1% |
| Farther Finance Advisors, LLC | 1,525 | +1,500 | $763 | +$745 | 6000.0% |
| Bangor Savings Bank | 400 | +200 | $200 | +$58 | 100.0% |
Reduced(25)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BlackRock, Inc. | 1,976,407 | -13,433 | $988.2K | -$426.8K | -0.7% |
| North Star Investment Management Corp. | 1,350,853 | -37,000 | $675.4K | -$311.5K | -2.7% |
| UBS Group AG | 198,289 | -337,013 | $99.1K | -$281.5K | -63.0% |
| TWO SIGMA INVESTMENTS, LP | 18,806 | -124,706 | $9.4K | -$92.6K | -86.9% |
| CITADEL ADVISORS LLC | 58,200 | -90,571 | $29.1K | -$76.7K | -60.9% |
| Kerrisdale Advisers, LLC | 252,495 | 0 | $126.2K | -$53.3K | 0.0% |
| PRIVATE MANAGEMENT GROUP INC | 45,217 | -46,111 | $22.6K | -$42.3K | -50.5% |
| GOLDMAN SACHS GROUP INC | 110,112 | -5,974 | $55.1K | -$27.5K | -5.1% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 122,256 | 0 | $61.1K | -$25.8K | 0.0% |
| MORGAN STANLEY | 74,565 | -3,864 | $37.3K | -$18.5K | -4.9% |
| Empowered Funds, LLC | 64,456 | 0 | $32.2K | -$13.6K | 0.0% |
| Blue Zone Wealth Advisors, LLC | 59,523 | 0 | $29.8K | -$12.6K | 0.0% |
| Prime Capital Investment Advisors, LLC | 50,000 | 0 | $25.0K | -$10.6K | 0.0% |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | 36,021 | 0 | $18.0K | -$7.6K | 0.0% |
| RAYMOND JAMES FINANCIAL INC | 34,631 | 0 | $17.3K | -$7.3K | 0.0% |
| WELLS FARGO & COMPANY/MN | 22,000 | 0 | $11.0K | -$4.6K | 0.0% |
| Tamar Securities, LLC | 11,400 | 0 | $5.7K | -$2.4K | 0.0% |
| Dynamic Advisor Solutions LLC | 10,488 | 0 | $5.2K | -$2.2K | 0.0% |
| Royal Bank of Canada | 278 | -2,607 | $0 | -$2.0K | -90.4% |
| Federation des caisses Desjardins du Quebec | 2,100 | 0 | $1.0K | -$471 | 0.0% |
| GSA CAPITAL PARTNERS LLP | 30,832 | -532,971 | $15 | -$386 | -94.5% |
| BNP PARIBAS ARBITRAGE, SNC | 738 | 0 | $369 | -$156 | 0.0% |
| Sound Income Strategies, LLC | 250 | 0 | $130 | -$45 | 0.0% |
| JONES FINANCIAL COMPANIES LLLP | 64 | 0 | $32 | -$16 | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 5 | 0 | $2 | -$2 | 0.0% |
Sold Out(16)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| OAKTOP CAPITAL MANAGEMENT II, L.P. | 0 | -4,597,302 | $0 | -$3.3M | — |
| NEW YORK STATE COMMON RETIREMENT FUND | 0 | -123,200 | $0 | -$541.6K | — |
| Boston Partners | 0 | -246,563 | $0 | -$175.3K | — |
| TWO SIGMA ADVISERS, LP | 0 | -107,200 | $0 | -$76.2K | — |
| HSBC HOLDINGS PLC | 0 | -104,056 | $0 | -$74.5K | — |
| RBF Capital, LLC | 0 | -103,794 | $0 | -$73.8K | — |
| MARSHALL WACE, LLP | 0 | -75,446 | $0 | -$53.6K | — |
| Hilltop Holdings Inc. | 0 | -55,000 | $0 | -$39.1K | — |
| Invesco Ltd. | 0 | -41,609 | $0 | -$29.6K | — |
| MILLENNIUM MANAGEMENT LLC | 0 | -34,701 | $0 | -$24.7K | — |
| XTX Topco Ltd | 0 | -34,159 | $0 | -$24.3K | — |
| Parallel Advisors, LLC | 0 | -31,000 | $0 | -$22.0K | — |
| Quinn Opportunity Partners LLC | 0 | -20,436 | $0 | -$14.5K | — |
| JPMORGAN CHASE & CO | 0 | -263 | $0 | -$187 | — |
| CITIGROUP INC | 0 | -164 | $0 | -$117 | — |
| ACADIAN ASSET MANAGEMENT LLC | 0 | -160,562 | $0 | -$114 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 2,681,587 | $1.3M | +127,486 | 5.0% |
| BlackRock, Inc. | 1,976,407 | $988.2K | -13,433 | -0.7% |
| MACKENZIE FINANCIAL CORP | 1,779,674 | $879.6K | +277,807 | 18.5% |
| RENAISSANCE TECHNOLOGIES LLC | 1,352,700 | $676.4K | +35,900 | 2.7% |
| North Star Investment Management Corp. | 1,350,853 | $675.4K | -37,000 | -2.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 649,984 | $325.1K | +84,064 | 14.8% |
| FMR LLC | 623,643 | $311.8K | +111,700 | 21.8% |
| Kerrisdale Advisers, LLC | 252,495 | $126.2K | 0 | 0.0% |
| STATE STREET CORP | 237,938 | $119.0K | +27,800 | 13.2% |
| UBS Group AG | 198,289 | $99.1K | -337,013 | -63.0% |
| BARCLAYS PLC | 130,818 | $96.8K | +1,566 | 1.2% |
| Williams & Novak, LLC | 188,500 | $94.3K | +40,900 | 27.7% |
| Lotus Technology Management, LP | 159,584 | $79.8K | +159,584 | — |
| Argentarii, LLC | 150,000 | $75.0K | +100,000 | 200.0% |
| NORTHERN TRUST CORP | 142,115 | $71.1K | +25,948 | 22.3% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1,248 | $71.0K | +1,148 | 1148.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 122,256 | $61.1K | 0 | 0.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 111,482 | $55.7K | +111,482 | — |
| GOLDMAN SACHS GROUP INC | 110,112 | $55.1K | -5,974 | -5.1% |
| MORGAN STANLEY | 74,565 | $37.3K | -3,864 | -4.9% |
New & Closed Positions this quarter
Closed Positions
16 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for PRTS against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.