How many institutions held PRTS - CarParts.com, Inc. - Common Stock, $0.001 par value per share in Q3 2020?

104 institutional investors reported PRTS - CarParts.com, Inc. - Common Stock, $0.001 par value per share for Q3 2020. Use the holders table for investor-level position and value details.

CarParts.com, Inc. - Common Stock, $0.001 par value per share (PRTS)

Q: What does CUSIP 14427M107 represent in this 13F holders report?

CUSIP 14427M107 is the security identifier for PRTS - CarParts.com, Inc. - Common Stock, $0.001 par value per share used to aggregate holder disclosures.

CUSIP: 14427M107

Q3 2020 13F Holders as of 30 Sep 2020

Security type / class: Equity / Common Stock, $0.001 par value per share
Total 13F shares: 33,270,660
Total 13F value: $359,724,153
Share change: +31,980,944
Put/Call ratio: 202%
SEC-reported price per share: $10.81
Number of holders: 104
Value change: +$345,816,127
Number of buys: 102
Number of sells: 1
Shares outstanding: 68,806,932

Security key

14427M107

Report period

Q3 2020

Institutions

104

Top holders

PRTS full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2020 Previous quarter: Q2 2020 CarParts.com, Inc. SEC filings CarParts.com, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 14427M107

Newer quarter: Q4 2020 Previous quarter: Q2 2020

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024

Ownership snapshot

Top reported holders of PRTS - CarParts.com, Inc. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

DRIEHAUS CAPITAL MANAGEME...

Disclosed value leader

RENAISSANCE TECHNOLOGIES LLC

Comparable rows

4/15

Latest evidence

30 Jun 2020

13F Lead comparable stake: 1.3% 11 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

DRIEHAUS CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 1.3%.

4 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens DRIEHAUS CAPITAL MANAGEMENT LLC's linked filing trail.

Comparable ownership Top 4

DRIEHAUS CAPITAL MANAGEMENT LLC 1.3%

PARAMETRIC PORTFOLIO ASSOCIATES LLC 0.39%

Millrace Asset Group, Inc. 0.05%

MARSHALL WACE, LLP 0.02%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
DRIEHAUS CAPITAL MANAGEMENT LLC	13F Company 13F	1.3%	$7,992,000 922,892 shares	—	30 Jun 2020
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F Company 13F	0.39%	$2,301,000 265,735 shares	—	30 Jun 2020
Millrace Asset Group, Inc.	13F Company 13F	0.05%	$279,000 32,226 shares	—	30 Jun 2020
MARSHALL WACE, LLP	13F Company 13F	0.02%	$133,000 15,328 shares	—	30 Jun 2020
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	— class O/S missing	$24,732,000 2,855,855 shares	—	30 Jun 2020
G2 Investment Partners Management LLC	13F Company 13F	— class O/S missing	$14,922,000 1,723,134 shares	—	30 Jun 2020

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2020

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

104

33,270,660

Rows available

104

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2020 vs Q2 2020 Across Filers

Q2 2020 holders

Q3 2020 holders

104

Holder diff

100

Investor	Q2 2020 Shares	Q3 2020 Shares	Share Diff	Share Chg %	Q2 2020 value	Q3 2020 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend