Proto Labs

PRLB • NYSE

Proto Labs is a manufacturing - metal fabrication company in the industrials sector on NYSE, led by Robert Bodor, with a market cap of $1.2B. As of Q3 2025, 91% of shares are held by 210 institutional investors, with BlackRock, Inc. as the largest holder at 15.17%.

CEORobert Bodor

Market Cap$1.2B

Manufacturing - Metal Fabrication

Industrials

Employees2.4K

Websiteprotolabs.com

Country

United States of America

Overview

Overview of institutional ownership in PRLB as of Q3 2025 with a market cap of $1.2B

All Institutions

Institutions: 210
Value Held: $1.1B
Shares Held: 21.7M
Avg Position: $5.2M
Median Position: $477.7K

Hedge Funds

Hedge Funds: 26
Value Held: $166.0M
Shares Held: 3.3M
Avg Position: $6.4M
Median Position: $1.0M

Ownership Breakdown

Institutional (non-HF)

77.11%

$921.1M

Hedge Funds

13.9%

$166.0M

Retail & Other

8.99%

$107.4M

Based on market cap of $1.2B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in PRLB as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$181.2M 0.00% of portfolio	15.17% 3.6M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$137.3M 0.00% of portfolio	11.50% 2.7M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
D DISCIPLINED GROWTH INVESTORS INC /MN Long Only Manager	Ricki Lee Martin CEO	$129.7M 2.35% of portfolio	10.86% 2.6M shares	Q4 2016 Held for 8y 11m	$5.5B
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$65.4M 0.01% of portfolio	5.47% 1.3M shares	≤ Q2 2013 Held for 12y 5m+	$466.32B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$58.8M 0.00% of portfolio	4.92% 1.2M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
R Rubric Capital Management LP Hedge Fund•Long/Short	Margaret Kossakowski CFO	$56.2M 0.81% of portfolio	4.71% 1.1M shares	Q1 2025 Held for 8 months	$6.9B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$28.4M 0.00% of portfolio	2.38% 567.0K shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$27.2M 0.04% of portfolio	2.28% 543.7K shares	Q1 2021 Held for 4y 8m	$75.8B
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	Anthony Ryan CEO	$23.0M 0.01% of portfolio	1.93% 460.6K shares	Q1 2023 Held for 2y 8m	$158.92B
D D. E. Shaw & Co., Inc. Institution	-	$17.9M 0.02% of portfolio	1.50% 357.2K shares	Q4 2017 Held for 7y 11m	$115.81B

Net Capital Flow

Institutional buying and selling activity for PRLB in Q3 2025

Traded: +$13.9M
Buyers: 99
Sellers: 94
Total Bought: +$76.2M
Total Sold: −$62.3M
Avg Position: $4.7M

Biggest Buyers

Institution	Net Bought	Current Position
AMERICAN CAPITAL MANAGEMENT INC Long Only Manager	+$11.3M +225.3K shares	$14.0M 279.3K shares
N Nuveen, LLC Institution	+$7.4M +148.2K shares	$16.5M 330.0K shares
Polar Securities Inc. Hedge Fund•Multi-Strategy	+$6.4M +128.4K shares	$6.4M 128.4K shares
SG Capital Management LLC Hedge Fund•Event Driven	+$5.7M +113.6K shares	$5.7M 113.6K shares
R Rubric Capital Management LP Hedge Fund•Long/Short	+$4.5M +89.2K shares	$56.2M 1.1M shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	+$4.1M +82.0K shares	$4.5M 90.6K shares
JPMORGAN CHASE & CO Institution	+$3.3M +65.6K shares	$4.4M 87.3K shares
BANK OF AMERICA CORP /DE/ Institution	+$3.2M +64.1K shares	$6.6M 132.4K shares
GOLDMAN SACHS GROUP INC Institution	+$2.8M +56.1K shares	$7.2M 144.4K shares
Select Equity Group, L.P. Hedge Fund•Multi-Strategy	+$2.6M +52.4K shares	$2.6M 52.4K shares

Biggest Sellers

Institution	Net Sold	Current Position
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager	−$6.6M −165.5K shares	Sold Off 0 shares
D DISCIPLINED GROWTH INVESTORS INC /MN Long Only Manager	−$6.5M −129.6K shares	$129.7M 2.6M shares
MORGAN STANLEY RIA/Wealth	−$5.4M −107.1K shares	$15.3M 306.0K shares
D D. E. Shaw & Co., Inc. Institution	−$4.8M −95.5K shares	$17.9M 357.2K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$3.4M −68.7K shares	$2.8M 55.2K shares
UBS Group AG Institution	−$3.2M −65.0K shares	$8.8M 176.9K shares
C Cubist Systematic Strategies, LLC Institution	−$2.7M −68.6K shares	Sold Off 0 shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$2.6M −51.0K shares	$5.2M 104.2K shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$2.1M −41.2K shares	$3.0M 60.2K shares
A Assenagon Asset Management S.A. Institution	−$1.9M −38.1K shares	$1.4M 27.7K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited PRLB in Q3 2025

New Positions: 11
New Value: $8.1M
Exited Positions: 21
Exited Value: $12.5M

New Positions

Institution	Position Value
Polar Securities Inc. Hedge Fund•Multi-Strategy	$6.4M 128.4K shares
A Allianz Asset Management AG Institution	$456.0K 9.1K shares
Round Rock Advisors, LLC RIA/Wealth	$330.7K 6.6K shares
Diametric Capital, LP Hedge Fund•Long/Short	$273.7K 5.5K shares
A Auto-Owners Insurance Co Institution	$225.1K 4.5K shares
Cornerstone Investment Partners, LLC RIA/Wealth	$202.3K 4.0K shares
L LSV ASSET MANAGEMENT Long Only Manager	$170.1K 3.4K shares
S Salomon & Ludwin, LLC Institution	$11.9K 240.0 shares
SILVER OAK SECURITIES, Inc RIA/Wealth	$1.9K 37.0 shares
C CBIZ Investment Advisory Services, LLC RIA/Wealth	$1.8K 35.0 shares

Exited Positions

Institution	Previous Position
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager	$6.6M 165.5K shares
C Cubist Systematic Strategies, LLC Institution	$2.7M 68.6K shares
Trexquant Investment LP Hedge Fund•Quant	$1.0M 26.1K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$395.1K 9.9K shares
M Maryland State Retirement & Pension System Institution	$279.7K 7.0K shares
Tradition Wealth Management, LLC RIA/Wealth	$250.0K 6.2K shares
N NOMURA HOLDINGS INC Institution	$247.3K 6.2K shares
BANK OF MONTREAL /CAN/ Institution	$246.7K 6.2K shares
S SEI INVESTMENTS CO Institution	$239.0K 6.0K shares
Point72 Ltd RIA/Wealth	$125.7K 3.1K shares

Options Activity

Institutions with the largest Call and Put options positions in PRLB as of Q3 2025

Call Positions: 4
Call Value: $1.5M
Put Positions: 1
Put Value: $320.2K

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$885.5K 177.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$600.4K 120.0 contracts
J JANE STREET GROUP, LLC Institution	- - contracts
W WOLVERINE TRADING, LLC Institution	- - contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$320.2K 64.0 contracts

Most Committed Institutions

Institutions with PRLB as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
S S Squared Technology, LLC Hedge Fund•Long/Short	Kenneth A Goldblatt Managing Partner	5.92% $15.6M	1.30% 311.1K shares	Q2 2023 Held for 2y 5m	$263.0M
D DISCIPLINED GROWTH INVESTORS INC /MN Long Only Manager	Ricki Lee Martin CEO	2.35% $129.7M	10.86% 2.6M shares	Q4 2016 Held for 8y 11m	$5.5B
GAGNON SECURITIES LLC RIA/Wealth	Neil Joseph Gagnon CEO	1.10% $5.4M	0.46% 108.7K shares	Q1 2019 Held for 6y 8m	$493.8M
R Rubric Capital Management LP Hedge Fund•Long/Short	Margaret Kossakowski CFO	0.81% $56.2M	4.71% 1.1M shares	Q1 2025 Held for 8 months	$6.9B
A AIMZ Investment Advisors, LLC RIA/Wealth	Jonathan Gideon Riley Managing Partner	0.63% $2.0M	0.17% 40.0K shares	Q4 2021 Held for 3y 11m	$318.7M
SG Capital Management LLC Hedge Fund•Event Driven	Glen Schneider President	0.57% $5.7M	0.48% 113.6K shares	Q3 2025 Held for 2 months	$998.2M
AMERICAN CAPITAL MANAGEMENT INC Long Only Manager	David Mark La Valle CEO	0.56% $14.0M	1.17% 279.3K shares	Q1 2025 Held for 8 months	$2.5B
H HUSSMAN STRATEGIC ADVISORS, INC. Institution	John Peter Hussman President	0.46% $2.1M	0.18% 42.0K shares	Q3 2025 Held for 2 months	$458.6M
R RICE HALL JAMES & ASSOCIATES, LLC Long Only Manager	Thomas W Mcdowell Chairman	0.33% $6.1M	0.51% 122.0K shares	Q4 2024 Held for 11 months	$1.8B
Hillsdale Investment Management Inc. Long Only Manager	Albert Christopher Guthrie CEO	0.25% $8.5M	0.71% 169.6K shares	Q4 2023 Held for 1y 11m	$3.3B

Hedge Fund Spotlight

Discover hedge funds investing in PRLB

TWO SIGMA ADVISERS, LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerScott David Hoffman

Portfolio Value: $50.0B
Positions: 2,312
Last Reported: Q3 2025

Sector Allocation

Position in Proto Labs

Market Value: $305.2K
Shares Held: 6.1K
Portfolio Weight: 0.00%
Owned Since: 2021-Q1

Top Holding	Sector	Market Value	Weight
1 Nvidia NVDA	Semiconductors Technology	$1.5B	3.07%
2 Microsoft MSFT	Software - Infrastructure Technology	$1.5B	3.03%
3 Apple AAPL	Consumer Electronics Technology	$1.4B	2.79%