CarParts.Com Inc (PRTS) Ownership

0.81 ↓0.03 (-3.86%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

OAKTOP CAPITAL MANAGEMENT II LP is the biggest individual institutional holder of CarParts.Com Inc (PRTS), owning a total of 4.6 million shares. Combined, the top 57 institutional holders of PRTS own 92.06% of the company with a total of 52.2 million shares.

In the latest ownership report on March 31st 2025, the top 57 institutional holders increased their combined ownership of PRTS by 36 thousand shares. 1 institutions bought 64,200 total additional shares and increased their ownership by an average of 15.08%. However 1 institutions sold 27,904 total shares and decreased their ownership by an average of 4.13%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of CarParts.Com increased by a net total of 36,296 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Assenagon Asset Management SA	1.111%	-4.132%	647,467	-27,904	2025-03-31
North Star Investment Management Corp	0.840%	15.080%	489,940	64,200	2025-03-31

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
OAKTOP CAPITAL MANAGEMENT II LP	7.886%	23.411%	4,597,302	872,117	2024-12-31
Kanen Wealth Management LLC	5.447%	-2.505%	3,082,655	-79,192	2023-09-30
BlackRock Inc	5.024%	0.540%	2,928,534	15,731	2024-12-31
Park West Asset Management LLC	5.041%	-47.894%	2,762,601	-2,539,315	2022-09-30
Vanguard Group Inc	4.284%	0.000%	2,497,244	0	2024-12-31
Acadian Asset Management LLC	3.210%	46.351%	1,838,815	582,376	2024-03-31
AQR Capital Management LLC	3.427%	-0.486%	1,837,179	-8,963	2024-06-30
Nuveen Asset Management, LLC	3.010%	-23.651%	1,724,225	-534,128	2024-03-31
Wasatch Advisors Inc.	2.603%	56.168%	1,472,946	529,767	2023-12-31
Wasatch Advisors LP	2.571%	0.000%	1,472,946	0	2024-03-31
GSA Capital Partners LLP	2.494%	17.845%	1,454,005	220,176	2024-12-31
Rk Capital Management, LLC	2.458%	0.000%	1,401,200	1,401,200	2023-03-31
D. E. Shaw & Co LP	2.035%	-35.873%	1,186,554	-663,765	2024-12-31
Cannell Capital LLC	1.984%	0.000%	1,156,595	1,156,595	2024-12-31
HHG PLC	1.972%	-6.880%	1,133,574	-83,754	2023-09-30
Renaissance Technologies Corp	1.803%	-33.960%	1,050,900	-540,400	2024-12-31
State Street Corporation	1.752%	0.784%	1,003,454	7,807	2024-03-31
Divisadero Street Capital Management, LP	1.642%	0.000%	853,516	853,516	2022-06-30
ProShare Advisors LLC	1.618%	-36.894%	841,134	-491,747	2022-06-30
Kennedy Capital Management Inc	1.452%	-0.625%	834,650	-5,252	2023-09-30
Goldman Sachs Group Inc	1.444%	61.422%	774,037	294,524	2024-06-30
Charles Schwab Investment Management Inc	1.225%	-4.666%	701,502	-34,333	2024-03-31
ISTHMUS Partners LLC	1.220%	109.014%	699,053	364,600	2024-03-31
UBS Group AG	1.276%	6,311.970%	696,019	685,164	2022-06-30
G2 Investment Partners Management LLC	1.219%	4.064%	695,223	27,153	2023-03-31
Balyasny Asset Management LLC	1.237%	192.135%	675,024	443,958	2022-06-30
Assenagon Asset Management SA	1.111%	-4.132%	647,467	-27,904	2025-03-31
Penserra Capital Management, LLC	1.138%	-7.407%	623,909	-49,912	2022-09-30
Citadel Advisors Llc	1.059%	59.052%	567,804	210,811	2024-06-30
Arrowstreet Capital Limited Partnership	0.982%	49.416%	560,022	185,215	2023-03-31
Kerrisdale Advisers, LLC	0.925%	18.975%	539,257	86,004	2024-12-31
Geode Capital Management, LLC	0.924%	-6.422%	538,756	-36,974	2024-12-31
Polar Asset Management Partners	0.915%	0.000%	533,212	0	2024-12-31
American Century Companies Inc	0.919%	22.960%	526,653	98,342	2024-03-31
Manatuck Hill Partners LLC	0.858%	66.667%	500,000	200,000	2024-12-31
Arnhold & S. Bleichroeder Advisers, LLC	0.914%	-15.445%	489,994	-89,500	2024-09-30
North Star Investment Management Corp	0.840%	15.080%	489,940	64,200	2025-03-31
Mackenzie Investments	0.839%	0.000%	488,796	488,796	2024-12-31
FMR Inc	0.801%	9.492%	466,918	40,477	2024-12-31
Eagle Asset Management, Inc.	0.806%	0.000%	453,716	453,716	2022-12-31
Millennium Management LLC	0.774%	-14.129%	451,447	-74,279	2024-12-31
RBF LLC	0.782%	39.796%	419,387	119,387	2024-06-30
Northern Trust Corp	0.777%	-10.123%	416,765	-46,943	2024-06-30
Essex Investment Management Company, LLC	0.682%	-6.586%	385,911	-27,208	2023-12-31
Portolan Capital Management, LLC	0.658%	0.000%	372,430	0	2023-12-31
Man Group PLC	0.639%	-1.061%	361,816	-3,881	2023-12-31
Two Sigma Investments LLC	0.616%	46.934%	358,804	114,610	2024-12-31
AMH Equity Ltd	0.585%	0.000%	341,200	341,200	2024-12-31
Jane Street Group LLC	0.609%	732.791%	326,529	287,320	2024-06-30
JANE STREET GROUP, LLC	0.570%	732.791%	326,529	287,320	2024-06-30
Morgan Stanley - Brokerage Accounts	0.595%	-67.491%	319,130	-662,540	2024-06-30
Susquehanna International Group, LLP	0.440%	183.473%	256,305	165,889	2024-12-31
Dimensional Fund Advisors, Inc.	0.477%	-69.898%	255,722	-593,800	2024-09-30
Two Sigma Advisers, LLC	0.408%	349.245%	238,100	185,100	2024-12-31
State Street Corp	0.392%	0.000%	210,138	0	2024-09-30
Bridgeway Capital Management, LLC	0.368%	-22.368%	197,080	-56,784	2024-09-30
Amvescap Plc.	0.331%	0.443%	177,687	783	2024-09-30

Mutual Fund Ownership

Portolan Equity is the biggest individual fund holder of CarParts.Com Inc (PRTS), owning a total of 2.4 million shares. Combined, the top 71 mutual fund holders of PRTS own 56.54% of the company with a total of 31.8 million shares.

In the latest ownership report on March 31st 2025, the top 71 fund holders increased their combined ownership of PRTS by 10 thousand shares. 1 funds bought 319 total additional shares and increased their ownership by an average of 0.31%. However 1 funds sold 10,504 total shares and decreased their ownership by an average of 7.24%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding CarParts.Com decreased by a net total of -10,185 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard Total Stock Mkt Idx Inv	2.968%	0.000%	1,730,090	0	2025-03-31
Vanguard Institutional Extnd Mkt Idx Tr	1.285%	0.000%	748,942	0	2025-03-31
Fidelity Enhanced Small Cap ETF	0.535%	0.000%	312,139	0	2025-03-31
BlackRock Advantage Small Cap Core Instl	0.292%	0.000%	170,354	0	2025-03-31
BlackRock Advantage Small Cap Gr Instl	0.231%	-7.238%	134,616	-10,504	2025-03-31
Invesco RAFI US 1500 Small-Mid ETF	0.227%	0.000%	132,478	0	2025-03-31
iShares Micro-Cap ETF	0.215%	0.000%	125,593	0	2025-03-31
Extended Equity Market Fund K	0.179%	0.307%	104,129	319	2025-03-31
EA Bridgeway Omni Small-Cap Value ETF	0.112%	0.000%	65,221	0	2025-03-31
NT Ext Equity Mkt Idx Fd - L	0.103%	0.000%	59,876	0	2025-03-31

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Portolan Equity	4.228%	0.000%	2,410,407	2,410,407	2022-12-31
Vanguard Total Stock Mkt Idx Inv	2.968%	0.000%	1,730,090	0	2025-03-31
Vanguard US Total Market Shares ETF	2.968%	0.000%	1,730,090	0	2024-09-30
Vanguard Instl Ttl Stck Mkt Idx Tr	2.777%	0.000%	1,596,734	0	2023-03-31
iShares Russell 2000 ETF	2.361%	0.767%	1,249,114	9,504	2024-05-30
Janus Henderson US Small Cap Growth	1.971%	0.000%	1,133,265	0	2023-09-30
Janus Henderson Venture D	1.971%	0.000%	1,133,265	0	2023-09-30
Vanguard Explorer Inv	1.628%	0.000%	932,394	0	2024-06-30
North Star Opportunity I	1.688%	-0.778%	893,000	-7,000	2024-04-30
First Eagle Small Cap Strategy	1.496%	18.770%	842,425	133,134	2023-06-30
Kennedy Extended Small Cap	1.452%	-0.625%	834,650	-5,252	2023-09-30
Vanguard Institutional Extnd Mkt Idx Tr	1.285%	0.000%	748,942	0	2025-03-31
Vanguard Extended Market Index Investor	1.219%	1.623%	695,087	11,100	2023-08-31
Wasatch Micro Cap Value	1.265%	0.000%	674,000	0	2024-03-31
Isthmus Small Cap Core Equity	1.268%	120.640%	670,987	366,878	2024-03-31
Nuveen Quant Small Cap Equity R6	1.139%	0.000%	652,240	0	2024-05-31
Nuveen Quant Small Cap Equity Instl	1.137%	2.057%	643,980	12,980	2024-02-29
TIAA-CREF Quant Small-Cap Equity Instl	1.138%	2.057%	643,980	12,980	2024-02-29
North Star Micro Cap I	1.145%	0.000%	614,000	0	2024-09-30
Amplify Online Retail ETF	1.116%	0.000%	580,236	0	2022-10-31
Fidelity Small Cap Index	0.928%	0.000%	531,434	0	2024-06-30
Fidelity® Small Cap Index	0.894%	2.381%	513,837	11,950	2023-10-31
Eagle Small Cap Core Inst'l	0.819%	5.713%	461,170	24,922	2023-03-31
First Eagle Small Cap Opportunity I	0.856%	-5.506%	458,741	-26,732	2024-09-30
Avantis US Small Cap Value ETF	0.810%	0.000%	458,157	0	2024-03-29
iShares Russell 2000 Growth ETF	0.865%	0.000%	457,862	0	2024-05-30
First Eagle US Small Cap Strategy	0.842%	-15.081%	451,639	-80,205	2024-09-30
SPDR® S&P Retail ETF	0.827%	2.298%	451,441	10,142	2022-11-30
Vanguard VIF Small Co Gr	0.756%	24.412%	433,183	85,000	2024-06-30
Strategic Advisers® Small-Mid Cap	0.687%	-13.149%	391,463	-59,264	2023-07-31
CREF Stock R1	0.683%	0.000%	391,000	0	2024-05-31
Philotimo Focused Growth and Income	0.626%	-46.924%	354,510	-313,422	2023-12-31
Nuveen Quant Small/Mid Cap Eq Instl	0.593%	0.000%	335,887	0	2024-02-29
TIAA-CREF Quant Sm/Md-Cp Eq Instl	0.594%	0.000%	335,887	0	2024-02-29
Nuveen Quant Small/Mid Cap Eq R6	0.580%	-1.146%	332,037	-3,850	2024-05-31
Fuller & Thaler Micro-Cap Core	0.602%	0.000%	328,165	0	2022-09-30
Schwab Small-Cap Equity	0.599%	0.000%	319,180	0	2024-03-31
Fidelity Enhanced Small Cap ETF	0.535%	0.000%	312,139	0	2025-03-31
Fidelity Extended Market Index	0.480%	-0.633%	279,864	-1,783	2025-02-28
State St Russell Sm/Mid Cp® Indx NL Cl C	0.455%	-20.269%	260,474	-66,217	2024-06-30
DFA US Targeted Value I	0.486%	0.000%	257,359	0	2024-04-30
Schwab US Small-Cap ETF™	0.430%	0.000%	246,557	0	2024-08-31
Vanguard Russell 2000 ETF	0.386%	-0.770%	204,086	-1,584	2024-05-31
Invesco FTSE RAFI US 1500 Small-Mid ETF	0.330%	0.000%	176,645	0	2025-02-28
BlackRock Advantage Small Cap Core Instl	0.292%	0.000%	170,354	0	2025-03-31
NT R2000 Growth Index Fund - NL	0.280%	0.000%	160,221	0	2023-12-31
Strategic Advisers U.S. Total Stock{mg}	0.271%	-10.265%	145,111	-16,600	2024-09-30
BlackRock Advantage Small Cap Gr Instl	0.231%	-7.238%	134,616	-10,504	2025-03-31
Fidelity VIP Disciplined Small Cap Init	0.230%	0.000%	134,272	0	2025-01-31
Invesco RAFI US 1500 Small-Mid ETF	0.227%	0.000%	132,478	0	2025-03-31
Northern Trust Russell 2000 Growth Index	0.226%	19.590%	129,566	21,224	2024-06-30
NT R2000 Growth Index Fund - L	0.226%	19.590%	129,566	21,224	2024-06-30
iShares Micro-Cap ETF	0.215%	0.000%	125,593	0	2025-03-31
Vanguard Growth & Income Inv	0.187%	-41.227%	109,200	-76,600	2024-12-31
BlackRock Extended Equity Market K	0.196%	-0.043%	105,239	-45	2024-09-30
NT R2000 Index Fund - NL	0.183%	-31.843%	104,818	-48,971	2024-06-30
Extended Equity Market Fund K	0.179%	0.307%	104,129	319	2025-03-31
Goldman Sachs Small Cap Eq Insghts Instl	0.167%	0.000%	95,618	0	2024-04-30
Mackenzie US Small Cap A	0.156%	40.878%	90,821	26,353	2025-01-31
Fidelity Total Market Index	0.155%	0.000%	90,615	0	2025-02-28
Strategic Advisers U.S. Total Stock	0.144%	-10.671%	83,711	-10,000	2025-02-28
Bridgeway Ultra-Small Company Market	0.142%	-37.651%	82,800	-50,000	2024-12-31
Blackrock Russell 2000 Alpha Tilts Fd A	0.121%	4.474%	70,284	3,010	2024-12-31
Fidelity Series Total Market Index	0.117%	0.000%	68,281	0	2025-02-28
EA Bridgeway Omni Small-Cap Value ETF	0.112%	0.000%	65,221	0	2025-03-31
DFA US Small Cap I	0.114%	-19.164%	60,991	-14,459	2024-09-30
Northern Trust Extended Eq Market Idx	0.103%	24.984%	59,876	11,969	2024-12-31
NT Ext Equity Mkt Idx Fd - L	0.103%	0.000%	59,876	0	2025-03-31
Spartan Extended Market Index Pool E	0.094%	3.357%	54,892	1,783	2025-02-28
NT Ext Equity Mkt Idx Fd - NL	0.102%	0.000%	54,499	0	2024-12-31
Strategic Advisers Small-Mid Cap	0.094%	0.000%	50,611	0	2024-07-31