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Protolabs

260 hedge funds and large institutions have $1.26B invested in Protolabs in 2026 Q1 according to their latest regulatory filings, with 53 funds opening new positions, 74 increasing their positions, 79 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

more ownership

Funds ownership:

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

6% less repeat investments, than reductions

Existing positions increased: 74 | Existing positions reduced: 79

Holders
260
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$8.23M
Puts
Net Calls
Net Calls Change

Top Buyers

1 +$17.4M
2 +$12.6M
3 +$7.76M
4
Marshall Wace
Marshall Wace
United Kingdom
+$3.97M
5
EI
EAM Investors
California
+$3.82M

Top Sellers

1 -$37M
2 -$10.2M
3 -$5.33M
4
Millennium Management
Millennium Management
New York
-$4.39M
5
Jane Street
Jane Street
New York
-$3.09M
Name Holding Trade Value Shares
Change
Change in
Stake
SFI
126
Susquehanna Fundamental Investments
Pennsylvania
$589K
RC
127
RBF Capital
California
$570K
Canada Pension Plan Investment Board
128
Canada Pension Plan Investment Board
Ontario, Canada
$553K
TC
129
Truvestments Capital
Florida
$553K
Manulife (Manufacturers Life Insurance)
130
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$544K
Allianz Asset Management
131
Allianz Asset Management
Germany
$520K
SEI Investments
132
SEI Investments
Pennsylvania
$503K
JCIA
133
Jackson Creek Investment Advisors
Colorado
$478K
AWA
134
Argos Wealth Advisors
California
$466K
Zurich Cantonal Bank
135
Zurich Cantonal Bank
Switzerland
$459K
New York State Common Retirement Fund
136
New York State Common Retirement Fund
New York
$450K
BA
137
Bridgewater Associates
Connecticut
$438K
WG
138
Winton Group
United Kingdom
$431K
State Board of Administration of Florida Retirement System
139
State Board of Administration of Florida Retirement System
Florida
$431K
Janney Montgomery Scott
140
Janney Montgomery Scott
Pennsylvania
$412K
Mercer Global Advisors
141
Mercer Global Advisors
Colorado
$397K
IFG
142
Independent Financial Group
California
$394K
AB
143
Amalgamated Bank
New York
$389K
IC
144
IEQ Capital
California
$387K
PFSRSONJ
145
Police & Firemen's Retirement System of New Jersey
New Jersey
$378K
ASRS
146
Arizona State Retirement System
Arizona
$371K
SG Americas Securities
147
SG Americas Securities
New York
$367K
YCM
148
Yousif Capital Management
Michigan
$363K
AG
149
Algert Global
California
$361K
TRSOTSOK
150
Teachers Retirement System of the State of Kentucky
Kentucky
$349K