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Equibles

PRTS

CarParts.com, Inc.

Company with tickers: PRTS

CIK
1378950
CUSIP
14427M107
Shares Outstanding
8,057,806
13F Activity (30d)
34 filings 32 filers

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.

Holders: 45
Total Value: $9,287,846
Total Shares: 11,756,796

Institutional Ownership Trend

24 quarters

Holder Concentration

Across 45 13F filers · Δ vs Dec 31, 2025
Top Holder
20.5%
Jun 2023 → Mar 2026 · range 10.5% – 24.9%
−0.1 pts
Top 5
66.0%
Jun 2023 → Mar 2026 · range 40.0% – 70.1%
−4.1 pts
Top 10
83.2%
Jun 2023 → Mar 2026 · range 58.7% – 85.1%
−1.9 pts
HHI
1,088
Jun 2023 → Mar 2026 · range 463 – 1,147
Broadly held −33

Quarterly Activity

vs Dec 31, 2025
New
10
Increased
10
Decreased
6
Sold Out
13
Unchanged
19
Holder count: -3
Institutional value: +42.4%
Shares held: -9.9%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega CITADEL ADVISORS LLC +534,396 592,596
Mega JANE STREET GROUP, LLC +441,637 461,737
Mega UBS Group AG +115,334 313,623
Mid North Star Investment Management Corp. +85,000 1,435,853
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP +72,021 183,503

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega FMR LLC −489,371 134,272
Micro Williams & Novak, LLC −155,675 32,825
Mega GEODE CAPITAL MANAGEMENT, LLC −50,915 599,069
Large RENAISSANCE TECHNOLOGIES LLC −16,400 1,336,300
Mid Farther Finance Advisors, LLC −1,500 25

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,407,747 $1,902,120
Mega VANGUARD FIDUCIARY TRUST CO 389,582 $307,769
Mid XTX Topco Ltd 106,493 $84,129
Large PRUDENTIAL FINANCIAL INC 44,400 $35,076
Small CCG WEALTH MANAGEMENT, LLC 38,473 $30,393

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 2,681,587 $1,340,793
Large MACKENZIE FINANCIAL CORP 1,779,674 $889,837
Micro Lotus Technology Management, LP 159,584 $79,792
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC 122,256 $61,128
Large Empowered Funds, LLC 64,456 $32,228
Filter: New 10 Increased 10 Reduced 6 Sold out 13 Unchanged 19
Showing 47 of 47
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,902,120 20.48% 2,407,747
Mega BlackRock, Inc. $1,561,359 16.81% 1,976,407
Mid North Star Investment Management Corp. $1,134,323 12.21% 1,435,853
Large RENAISSANCE TECHNOLOGIES LLC $1,055,677 11.37% 1,336,300
Mega GEODE CAPITAL MANAGEMENT, LLC $473,264 5.10% 599,069
Mega CITADEL ADVISORS LLC $369,558 3.98% 467,796
Mega JANE STREET GROUP, LLC $318,083 3.42% 402,637
Mega VANGUARD FIDUCIARY TRUST CO Bank $307,769 3.31% 389,582
Mega UBS Group AG $247,761 2.67% 313,623
Mega STATE STREET CORP $209,173 2.25% 264,777
Small Kerrisdale Advisers, LLC $199,471 2.15% 252,495
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $144,967 1.56% 183,503
Small Argentarii, LLC $118,500 1.28% 150,000
Mega GOLDMAN SACHS GROUP INC $117,085 1.26% 148,210
Mega NORTHERN TRUST CORP Bank $112,270 1.21% 142,115
Mega FMR LLC $106,074 1.14% 134,272
Mega BARCLAYS PLC $102,109 1.10% 129,252
Mega CITADEL ADVISORS LLC $98,592 1.06% 124,800
Mid XTX Topco Ltd $84,129 0.91% 106,493
Mega HSBC HOLDINGS PLC $82,204 0.89% 104,056
Mega MORGAN STANLEY $58,905 0.63% 74,565
Mega BANK OF AMERICA CORP /DE/ Bank $55,374 0.60% 70,094
Small Fragasso Financial Advisors Inc $50,590 0.54% 64,039
Small Blue Zone Wealth Advisors, LLC $47,023 0.51% 59,523
Mega JANE STREET GROUP, LLC $46,689 0.50% 59,100
Mid SIMPLEX TRADING, LLC $45,215 0.49% 57,235
Mid Prime Capital Investment Advisors, LLC $39,500 0.43% 50,000
Large PRUDENTIAL FINANCIAL INC $35,076 0.38% 44,400
Small CCG WEALTH MANAGEMENT, LLC $30,393 0.33% 38,473
Large FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ $28,456 0.31% 36,021
Mega RAYMOND JAMES FINANCIAL INC $27,357 0.29% 34,631
Micro Williams & Novak, LLC $25,931 0.28% 32,825
Mega Vanguard Global Advisers, LLC $14,387 0.15% 18,212
Large HRT FINANCIAL LP $9,664 0.10% 12,233
Small Tamar Securities, LLC Broker-Dealer $9,006 0.10% 11,400
Micro Dickmeyer Boyce Financial Management, Inc. $8,690 0.09% 11,000
Mid Dynamic Advisor Solutions LLC $8,285 0.09% 10,488
Large Federation des caisses Desjardins du Quebec $1,659 0.02% 2,100
Mega BNP PARIBAS ARBITRAGE, SA $571 0.01% 723
Mega ROYAL BANK OF CANADA Bank $233 0.00% 295
Mid Sound Income Strategies, LLC $197 0.00% 250
Large JONES FINANCIAL COMPANIES LLLP $50 0.00% 64
Mid WHITTIER TRUST CO Bank $45 0.00% 57
Small SHP Wealth Management $37 0.00% 47
Mid Farther Finance Advisors, LLC $19 0.00% 25
Mid SBI Securities Co., Ltd. Broker-Dealer $3 0.00% 4
Large OSAIC HOLDINGS, INC. $3 0.00% 5

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