PRTS · CarParts.com, Inc. · Holdings

$8.34 +0.00 (+0.00%) Play latest call Q2 2026 earnings call transcript

Market Cap

$65.51M

8.09M

Volume · Nov 4 1183 Avg daily vol (3M) 50.05K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of PRTS: 13F, 13D and 13G, insiders and funds →

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 29

Total Value: $7,567,354

Total Shares: 1,118,177

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 28 13F filers

Top Holder

24.6%

of institutional value

Top 5

76.4%

of institutional value

Top 10

90.8%

of institutional value

HHI

1,389

Broadly held

Who Holds PRTS

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 27 filers, like-for-like change -12.3%; actively managed books -26.6%; index-like books +0.6%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	51.7%	8	-3.7%	2	10
Adviser	13.7%	1	-2.8%	0	0
Bank	8.2%	5	-9.3%	0	1
Non-US	0.0%	2	+8.3%	1	0
Holding company	20.5%	4	-10.8%	0	1
Insurer	0.0%	0	-100.0%	0	1
Exempt adviser	0.0%	0	—	0	0
Unknown	5.9%	7	-57.2%	1	8

Style	Share	Filers	Change	New	Exited
Index-like	60.5%	8	+0.6%	0	1
Systematic-like	15.7%	2	-16.7%	1	2
Concentrated	2.5%	3	-42.3%	0	4
Diversified active	21.4%	14	-30.5%	3	14
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	48.0%	15	-9.9%	2	13
Medium turnover	6.5%	4	-14.4%	0	2
High turnover	16.6%	4	-34.3%	2	5
Unknown	28.9%	4	+3.8%	0	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	31.7%	5	+9.8%	1	2
Medium horizon	19.2%	3	-13.2%	1	3
Long horizon	46.6%	18	-22.8%	2	15
Unknown	2.5%	1	-4.6%	0	1
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	2.5%	1	-53.6%	0	5
$1B to $10B	17.5%	6	+5.4%	3	5
$10B to $100B	12.9%	4	-11.7%	0	5
$100B or more	67.1%	16	-13.3%	1	6
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.0%	1	-100.0%	0	9
Pooled investment vehicles	18.3%	4	-10.3%	1	1
Registered funds and BDCs	33.3%	3	+12.6%	1	0
Other investment advisers	0.0%	0	—	0	0
Governments and sovereign funds	0.0%	0	—	0	0
Pension and profit sharing plans	0.0%	0	—	0	0
Unknown	48.3%	19	-19.9%	2	11

Private funds	Share	Filers	Change	New	Exited
Hedge funds	18.2%	3	-10.4%	1	1
Other private funds	1.1%	1	new	1	0
No private funds	32.4%	4	+3.4%	0	7
Private equity funds	0.0%	0	-100.0%	0	1
Real estate funds	0.0%	0	-100.0%	0	1
Liquidity funds	0.0%	0	—	0	0
Private funds, type not stated	0.0%	0	—	0	0
Unknown	48.3%	19	-19.9%	2	11

Location	Share	Filers	Change	New	Exited
United States	92.1%	20	-14.3%	2	20
Outside the US	7.9%	7	+22.3%	2	1

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

27 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight 0.000%

Mar 31, 2026: 0

Crowding

2.55%

of shares outstanding, 10th percentile

Mar 31, 2026: 4.30%

Private-fund advisers

2.43%

of shares outstanding

Institutional ownership

12.6%

13.2% of the estimated free float

Top 10 holders

91.8%

of 13F shares, Herfindahl 0.142

Active holders

-26.6%

like-for-like share change of active filers

5% stakes on record

0 13D, 2 13G (1 institutional, 1 passive, 0 exempt)

How long holders have held it value-weighted 12.6 quarters

Under 1 year 32.9% 1 to 3 years 21.7% 3 years or more 45.4% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$52.91

estimated per share

Mar 31, 2026: $4.69

Quarter-end price

$6.44

implied by 13F values

Estimated gain or loss

-87.8%

price against the estimated cost

Estimated at a loss

100.0%

of costed 13F value

Estimated cost covers 53.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies PRTS's active holders also own, quarter ended Mar 31, 2026

#	Company	Shared holders	Similarity
1	UNH Unitedhealth Group Inc	4	0.038
2	COST Costco Wholesale Corp	5	0.036
3	AMD Advanced Micro Devices Inc	4	0.036
4	TSM Taiwan Semiconductor Manufacturing Co Ltd	4	0.034
5	AVGO Broadcom Inc.	5	0.034
6	BRK-B Berkshire Hathaway Inc	5	0.033
7	META Meta Platforms, Inc.	5	0.032
8	JPM Jpmorgan Chase & Co	5	0.032
9	QCOM Qualcomm Inc	3	0.032
10	PG PROCTER & GAMBLE Co	4	0.030

Shareholder Targets

13F filers that own its peers but not PRTS, quarter ended Mar 31, 2026

Found through its holder-overlap peers: UNH, COST, AMD, TSM, AVGO, BRK-B, META, JPM, QCOM, PG, NVDA, AMZN, AAPL, GOOGL, MSFT, WMT, NEE, AMGN, JNJ, XOM. 7,248 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$500,757,623,161 20 held	26.2%	NVDA, AAPL, MSFT
2	JPMORGAN CHASE & CO Bank, Diversified active	$426,463,454,243 20 held	28.3%	NVDA, AAPL, GOOGL
3	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$322,043,155,307 20 held	37.4%	NVDA, AAPL, MSFT
4	Capital Research Global Investors Adviser, Diversified active	$225,165,162,853 20 held	35.0%	AVGO, MSFT, NVDA
5	Invesco Ltd. Adviser, Diversified active	$201,333,629,165 20 held	25.7%	NVDA, AAPL, GOOGL
6	Capital World Investors Adviser, Diversified active	$196,541,987,239 18 held	26.9%	AVGO, GOOGL, META
7	CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser, Diversified active	$180,542,718,756 19 held	27.6%	NVDA, AAPL, GOOGL
8	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser, Index-like	$179,836,692,176 20 held	37.4%	NVDA, AAPL, MSFT
9	Bank of New York Mellon Corp Bank, Index-like	$165,092,900,438 20 held	30.5%	NVDA, AAPL, GOOGL
10	Legal & General Group Plc Unknown, Index-like	$158,442,943,873 20 held	36.6%	NVDA, AAPL, GOOGL

Fund Ownership of PRTS by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 3.70% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.69%	+0.69 pp	55,433	6
Index ETFs	3.02%	+3.02 pp	243,952	2
Active ETFs	0.00%	0.00 pp	0	0
Active funds	1.12%	+1.12 pp	90,500	5
Unclassified	0.00%	0.00 pp	0	0
All registered funds	4.82%	+4.82 pp	389,885	13

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 8 Adviser 1 Bank 5 Non-US 2 Holding company 4 Unknown 9

Showing 29 of 29

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

North Star Investment Management Corp.

$1,859,220

24.57%

231,823

VANGUARD CAPITAL MANAGEMENT LLC

$1,624,412

21.47%

252,238

BlackRock, Inc.

$1,202,649

15.89%

186,747

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	57,079	$367,588	30.6%	Sole
BlackRock Fund Advisors	6,982	$44,964	3.7%	Sole
BlackRock Institutional Trust Company, N.A.	122,638	$789,788	65.7%	Sole
Aperio Group, LLC	48	$309	0.0%	Sole

RENAISSANCE TECHNOLOGIES LLC

$840,271

11.10%

130,477

GEODE CAPITAL MANAGEMENT, LLC

$484,455

6.40%

75,226

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	13,976	$90,005	18.6%	Defined
Held directly	61,250	$394,450	81.4%	Defined

VANGUARD FIDUCIARY TRUST CO

$252,602

3.34%

39,224

GSA CAPITAL PARTNERS LLP

$184,428

2.44%

28,638

UBS Group AG

$179,135

2.37%

27,816

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	27,816	$179,135	100.0%	Defined

STATE STREET CORP

$170,511

2.25%

26,477

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS TRUST COMPANY	26,477	$170,511	100.0%	Defined

Kerrisdale Advisers, LLC

$162,603

2.15%

25,249

NORTHERN TRUST CORP

$103,342

1.37%

16,047

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	16,047	$103,342	100.0%	Defined

FMR LLC

$86,476

1.14%

13,428

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	13,428	$86,476	100.0%	Defined

BARCLAYS PLC

$84,150

1.11%

13,067

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	12,927	$83,249	98.9%	Defined
BARCLAYS CAPITAL INC.	140	$901	1.1%	Defined

DIMENSIONAL FUND ADVISORS LP

$71,702

0.95%

11,134

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$67,620

0.89%

10,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	10,500	$67,620	100.0%	Other

HSBC HOLDINGS PLC

$67,014

0.89%

10,406

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	10,406	$67,014	100.0%	Defined

SIMPLEX TRADING, LLC

$55,016

0.73%

8,543

MORGAN STANLEY

$50,475

0.67%

7,838

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	7,331	$47,211	93.5%	Defined
MORGAN STANLEY SMITH BARNEY LLC	123	$792	1.6%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	384	$2,472	4.9%	Defined

Vanguard Global Advisers, LLC

$11,733

0.16%

1,822

Tower Research Capital LLC (TRC)

$6,652

0.09%

1,033

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	1,033	$6,652	100.0%	Defined

Federation des caisses Desjardins du Quebec

$1,352

0.02%

210

OSAIC HOLDINGS, INC.

$650

0.01%

101

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	101	$650	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$437

0.01%

ROYAL BANK OF CANADA

$192

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Dominion Securities Inc.	20	$128	66.7%	Defined
Held directly	10	$64	33.3%	Sole

Caitong International Asset Management Co., Ltd

$88

0.00%

SBI Securities Co., Ltd.

$80

0.00%

JONES FINANCIAL COMPANIES LLLP

$45

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	7	$45	100.0%	Sole

WHITTIER TRUST CO

$38

0.00%

SHP Wealth Management

0.00%

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