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PRTS · NASDAQ

$7.94+$0.01 (+0.13%)TodayMarket closed · Oct 20, 7:30 PM ET

Prev close $7.93

Who owns PRTS

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 21.2% of PRTS’s shares.

Axislink Holdings B.V.6.9%
Vanguard Capital Management, LLC3.1%
Meniane (David)3.0%
North Star Investment Management Corporation1.7%
Next 6 largest institutions6.5%
All other shareholders78.8%

Top institutional holders of PRTS
Holder	Shares	% of shares	Change, last filing	Filed
Axislink Holdings B.V.	553.90K	6.87%	+553.90K	Sep 10, 2025
Vanguard Capital Management, LLC	252.24K	3.13%	+11.46K	Jun 30, 2026
Meniane (David)	242.35K	3.01%	+12.16K	Aug 28, 2026
North Star Investment Management Corporation	139.52K	1.73%	−4.06K	Jun 30, 2026
Renaissance Technologies LLC	130.48K	1.62%	−3.15K	Jun 30, 2026
BlackRock Institutional Trust Company, N.A.	129.62K	1.61%	−2.15K	Jun 30, 2026
Huffaker (Michael)	76.25K	0.95%	+12.16K	Aug 28, 2026
Geode Capital Management, L.L.C.	75.23K	0.93%	+15.32K	Jun 30, 2026
BlackRock Financial Management, Inc.	57.08K	0.71%	−3.68K	Jun 30, 2026
Lockwood (Ryan)	55.44K	0.69%	+1.20K	Oct 17, 2025

Largest mutual fund holders

Top mutual fund holders of PRTS
Holder	Shares	% of shares	Change, last filing	Filed
Vanguard Total Stock Market Index Fund	172.75K	2.14%	+0	Jul 31, 2026
Vanguard Extended Market Index Fund	72.89K	0.90%	+800	Jul 31, 2026
North Star Micro Cap Fund	65.00K	0.81%	+0	May 31, 2026
Fidelity Extended Market Index Fund	38.99K	0.48%	−73	Jul 31, 2026
Fidelity VIP II Disciplined Small Cap Portfolio	13.43K	0.17%	+0	Jun 30, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $2.07M (16 trades) of PRTS on the open market, with no sales.

Latest PRTS insider transactions
Insider	Date	Type	Shares	Price	Value
Huffaker Michael	Sep 10, 2026	Buy	13.25K	$10.06	$133.30K
Meniane David	Sep 10, 2026	Buy	13.25K	$10.06	$133.30K
Huffaker Michael	Sep 9, 2026	Buy	36.58K	$9.64	$352.63K
Meniane David	Sep 9, 2026	Buy	36.64K	$9.64	$353.24K
Huffaker Michael	Sep 8, 2026	Buy	21.72K	$9.35	$203.06K
Meniane David	Sep 8, 2026	Buy	21.74K	$9.35	$203.29K
Huffaker Michael	Sep 4, 2026	Buy	21.16K	$9.11	$192.77K
Meniane David	Sep 4, 2026	Buy	21.15K	$9.11	$192.71K
Huffaker Michael	Aug 28, 2026	Buy	7.55K	$7.16	$54.04K
Meniane David	Aug 28, 2026	Buy	7.55K	$7.16	$54.07K

Short interest

Settled Sep 30, 2026

Shares short: 456.05K
Days to cover: 12.53
% of shares outstanding: 5.66%
Average daily volume: 36.40K
Change since last report: +0.6%

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