PRTS Institutional Ownership & Shareholders
CARPARTS.COM INC (PRTS) is currently held by 27 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $7.50M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
North Star Investment Management Corp. is currently the largest disclosed institutional shareholder of PRTS tracked by InsiderSet, reporting ownership valued at approximately $1.86M in its September 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.73M, representing an estimated loss of -7.11% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 93% of the total disclosed PRTS value among the investors covered in this analysis. Major shareholders include North Star Investment Management Corp., Vanguard Capital Management Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in CARPARTS.COM INC (PRTS).
This page ranks the largest institutional PRTS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
27
Total Reported Value
$7.50M
Largest Holder
North Star Investment Management Corp.
Largest Position
$1.86M
Insider Transactions (90d)
30
Latest Filing Quarter
Q2 2026
New Institutional Positions
63
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| North Star Investment Management Corp. | 0.10% | 231,823 | $1,859,220 | $1,727,081 | -$132,139 | -7.11% | |
| Vanguard Capital Management Llc | 0.00% | 252,238 | $1,624,413 | $1,879,173 | +$254,760 | +15.68% | |
| Blackrock, Inc. | 0.00% | 186,747 | $1,202,651 | $1,391,265 | +$188,614 | +15.68% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 130,477 | $840,272 | $972,054 | +$131,782 | +15.68% |
| Geode Capital Management, Llc | 0.00% | 75,226 | $484,560 | $560,434 | +$75,874 | +15.66% | |
| Vanguard Fiduciary Trust Co | 0.00% | 39,224 | $252,603 | $292,219 | +$39,616 | +15.68% | |
| Gsa Capital Partners Llp | 0.01% | 28,638 | $184,000 | $213,353 | +$29,353 | +15.95% | |
| Ubs Group Ag | 0.00% | 27,816 | $179,135 | $207,229 | +$28,094 | +15.68% | |
| State Street Corp | 0.00% | 26,477 | $170,512 | $197,254 | +$26,742 | +15.68% | |
| Kerrisdale Advisers, Llc | 0.04% | 25,249 | $162,604 | $188,105 | +$25,501 | +15.68% | |
| Northern Trust Corp | 0.00% | 16,047 | $103,343 | $119,550 | +$16,207 | +15.68% | |
| Fmr Llc | 0.00% | 13,428 | $86,476 | $100,039 | +$13,563 | +15.68% | |
| Barclays Plc | 0.00% | 13,067 | $84,151 | $97,349 | +$13,198 | +15.68% | |
| Dimensional Fund Advisors Lp | 0.00% | 11,134 | $71,703 | $82,948 | +$11,245 | +15.68% | |
| Hsbc Holdings Plc | 0.00% | 10,406 | $67,119 | $77,525 | +$10,406 | +15.50% | |
| Simplex Trading, Llc | 0.00% | 8,543 | $55,016 | $63,645 | +$8,629 | +15.69% | |
| Morgan Stanley | 0.00% | 7,838 | $50,477 | $58,393 | +$7,916 | +15.68% | |
| Vanguard Global Advisers, Llc | 0.00% | 1,822 | $11,734 | $13,574 | +$1,840 | +15.68% | |
| Tower Research Capital Llc (Trc) | 0.00% | 1,033 | $6,653 | $7,696 | +$1,043 | +15.67% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 210 | $1,344 | $1,565 | +$221 | +16.41% | |
| Osaic Holdings, Inc. | 0.00% | 101 | $650 | $752 | +$102 | +15.76% | |
| Bnp Paribas Financial Markets | 0.00% | 68 | $438 | $507 | +$69 | +15.66% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 11 | $88 | $82 | -$6 | -6.87% | |
| Sbi Securities Co., Ltd. | 0.00% | 10 | $80 | $75 | -$6 | -6.88% | |
| Jones Financial Companies Lllp | 0.00% | 7 | $44 | $52 | +$8 | +18.52% | |
| Whittier Trust Co | 0.00% | 6 | $37 | $45 | +$8 | +20.81% | |
| Shp Wealth Management | 0.00% | 1 | $6 | $7 | +$1 | +24.17% |
Frequently asked questions about PRTS
Who are the largest institutional holders of PRTS?
The largest institutional holders of PRTS reported in the latest SEC Form 13F filings include North Star Investment Management Corp., Vanguard Capital Management Llc, Blackrock, Inc., Renaissance Technologies LLC, and Geode Capital Management, Llc. InsiderSet ranks institutional holders by their latest reported PRTS position.
What is PRTS institutional ownership?
This page tracks PRTS positions reported by institutional investment managers through SEC Form 13F. CARPARTS.COM INC (PRTS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own PRTS?
InsiderSet currently tracks 27 institutional managers reporting PRTS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of PRTS shareholders.
How much PRTS stock do institutions own?
Institutional investment managers disclosed approximately $7.50M in PRTS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was PRTS institutional ownership last updated?
The latest PRTS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional PRTS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its PRTS position after the reporting date.
Are institutions buying or selling PRTS?
Institutional buying and selling can be analyzed by comparing PRTS positions across consecutive 13F reporting periods. InsiderSet's PRTS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View PRTS ownership changes.
How has PRTS institutional ownership changed over time?
InsiderSet tracks PRTS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.