Proto Labs Inc

PRLB

Exchange: NYSE
Industry: Fabricated Structural Metal Products
SEC CIK: 0001443669

SEC filings (opens in a new tab)

In the last 90 days, Proto Labs Inc insiders filed 0 open-market purchases and 2 sales; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.83B in total; ARK Invest is the only superinvestor holding it.

Q2 2025 vs. Q1 2025

How the institutions holding Proto Labs Inc changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of PRLB: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Q2 2025	Change
Holders	188	202	+14
Shares	21.8M	21.6M	−182.3K (−0.8%)
Value	$764.5M	$866.4M	+$101.9M (+13.3%)

New holders (34)

Institutions that held Proto Labs Inc at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to PRLB in Q2 2025
Institution	Shares	Value	% of portfolio
Millennium Management LLC	155,173	$6.21M	0.01%
Cubist Systematic Strategies, LLC	68,614	$2.75M	0.03%
Y-Intercept (Hong Kong) Ltd	42,182	$1.69M	0.04%
CWA Asset Management Group, LLC	36,322	$1.45M	0.06%
Campbell & CO Investment Adviser LLC	33,471	$1.34M	0.08%
Verition Fund Management LLC	22,609	$905.3K	0.01%
Horizon Investments, LLC	12,061	$482.9K	0.01%
HSBC Holdings PLC	11,991	$480.0K	0.00%
Janney Montgomery Scott LLC	11,786	$472.0K	0.00%
Quantinno Capital Management LP	7,391	$295.9K	0.00%
Tradition Wealth Management, LLC	6,243	$250.0K	0.02%
Nomura Holdings Inc	6,176	$247.3K	0.00%
SEI Investments Co	5,969	$239.0K	0.00%
Balyasny Asset Management LLC	5,915	$236.8K	0.00%
Versor Investments LP	5,587	$223.7K	0.04%
OP Asset Management Ltd	3,809	$152.5K	0.00%
Point72 (DIFC) Ltd	3,139	$125.7K	0.01%
Point72 Asia (Singapore) Pte. Ltd.	2,799	$112.1K	0.02%
Quarry LP	1,134	$45.4K	0.01%
Clear Street Markets LLC	521	$20.9K	0.01%
Raymond James Financial Inc	250	$10.0K	0.00%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	235	$9.00K	0.00%
Maseco LLP	108	$4.32K	0.00%
Total Investment Management Inc	95	$3.80K	0.00%
Ameritas Advisory Services, LLC	75	$3.00K	0.00%
Hantz Financial Services, Inc.	73	$3.00K	0.00%
Clearstead Advisors, LLC	71	$2.84K	0.00%
High Note Wealth, LLC	44	$1.76K	0.00%
UMA Financial Services, Inc.	29	$1.16K	0.00%
Essential Partners LLC	25	$1.00K	0.00%
MAI Capital Management	22	$881	0.00%
Atlantic Trust, LLC	16	$641	0.00%
SRS Capital Advisors, Inc.	15	$601	0.00%
Annis Gardner Whiting Capital Advisors, LLC	7	$281	0.00%

Sold out (20)

Institutions that held Proto Labs Inc at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of PRLB in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Wellington Management Group LLP	711,738	$24.9M
Winton Group Ltd	47,557	$1.67M
Universal- Beteiligungs- und Servicegesellschaft mbH	38,123	$1.34M
Healthcare of Ontario Pension Plan Trust Fund	31,700	$1.11M
Graham Capital Management, L.P.	20,147	$706.0K
Mackenzie Financial Corp	14,333	$502.2K
Quadrature Capital Ltd	13,122	$460.1K
Corebridge Financial, Inc.	12,838	$449.8K
Meeder Asset Management Inc	10,096	$353.8K
Ieq Capital, LLC	8,559	$299.9K
Man Group plc	8,278	$290.1K
KBC Group NV	1,541	$54.0K
Aster Capital Management (DIFC) Ltd	888	$35.4K
Aquatic Capital Management LLC	316	$11.1K
Acadian Asset Management LLC	257	$9.00K
Group One Trading, L.P.	249	$8.72K
Coldstream Capital Management Inc	124	$4.35K
Clean Yield Group	53	$1.86K
PSI Advisors, LLC	50	$1.75K
Stephens Consulting, LLC	10	$351