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Protolabs
PRLB

201 hedge funds and large institutions have $866M invested in Protolabs in 2025 Q2 according to their latest regulatory filings, with 34 funds opening new positions, 65 increasing their positions, 73 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

62,125% more call options, than puts

Call options by funds: $2.49M | Put options by funds: $4K

62% more first-time investments, than exits

New positions opened: 34 | Existing positions closed: 21

13% more capital invested

Capital invested by funds: $765M → $866M (+$102M)

7% more funds holding

Funds holding: 188 → 201 (+13)

0.97% more ownership

Funds ownership: 90.06% → 91.03% (+0.97%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

11% less repeat investments, than reductions

Existing positions increased: 65 | Existing positions reduced: 73

Holders
201
Holders Change
+13
Holders Change %
+6.91%
% of All Funds
2.65%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
34
Increased
65
Reduced
73
Closed
21
Calls
$2.49M
Puts
$4K
Net Calls
+$2.48M
Net Calls Change
+$625K

Top Buyers

Rank Fund Capital Flow
1
RCMNY
Rubric Capital Management (New York)
New York
+$34.2M
2
Millennium Management
Millennium Management
New York
+$5.78M
3
N
Nuveen
North Carolina
+$4.16M
4
Citadel Advisors
Citadel Advisors
Florida
+$4.15M
5
CSS
Cubist Systematic Strategies
Connecticut
+$2.56M

Top Sellers

Rank Fund Capital Flow
1
Wellington Management Group
Wellington Management Group
Massachusetts
-$24.9M
2
First Trust Advisors
First Trust Advisors
Illinois
-$19.4M
3
BlackRock
BlackRock
New York
-$7.88M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$3.15M
5
TI
Trexquant Investment
Connecticut
-$3.02M
Name Holding Trade Value Shares
Change 		Change in
Stake
LSERS
101
Louisiana State Employees Retirement System
Louisiana
$444K -$14.9K -400 -3%
BNP Paribas Financial Markets
102
BNP Paribas Financial Markets
France
$443K +$350K +9,384 +560%
RC
103
RBF Capital
California
$400K – – –
State of Tennessee, Department of Treasury
104
State of Tennessee, Department of Treasury
Tennessee
$390K -$78.5K -2,107 -18%
Amundi
105
Amundi
France
$379K -$27.2K -729 -7%
DT
106
Diversified Trust
Tennessee
$370K -$522 -14 -0.2%
YCM
107
Yousif Capital Management
Michigan
$364K -$9.39K -252 -3%
Manulife (Manufacturers Life Insurance)
108
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$344K -$12.3K -329 -4%
Lazard Asset Management
109
Lazard Asset Management
New York
$343K +$1.04K +28 +0.3%
TRSOTSOK
110
Teachers Retirement System of the State of Kentucky
Kentucky
$342K – – –
TC
111
Truvestments Capital
Florida
$332K +$29.7K +797 +11%
Comerica Bank
112
Comerica Bank
Texas
$325K -$9.39K -252 -3%
Two Sigma Advisers
113
Two Sigma Advisers
New York
$304K -$37.3K -1,000 -12%
State Board of Administration of Florida Retirement System
114
State Board of Administration of Florida Retirement System
Florida
$303K – – –
New York State Common Retirement Fund
115
New York State Common Retirement Fund
New York
$301K – – –
QCM
116
Quantinno Capital Management
New York
$296K +$275K +7,391 New
MSRPS
117
Maryland State Retirement & Pension System
Maryland
$280K -$6.56K -176 -2%
ASRS
118
Arizona State Retirement System
Arizona
$278K -$3.5K -94 -1%
AB
119
Amalgamated Bank
New York
$274K -$7.56K -203 -3%
Creative Planning
120
Creative Planning
Kansas
$253K -$220K -5,902 -48%
TWM
121
Tradition Wealth Management
Minnesota
$250K +$233K +6,243 New
Nomura Holdings
122
Nomura Holdings
Japan
$247K +$230K +6,176 New
Bank of Montreal
123
Bank of Montreal
Ontario, Canada
$247K +$373 +10 +0.2%
COPPSERS
124
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$244K +$8.87K +238 +4%
SEI Investments
125
SEI Investments
Pennsylvania
$239K +$222K +5,969 New
3 4
5
6 7

PRLB Hedge Fund Activity: Q2 2025 in Review

201 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Protolabs (PRLB) for Q2 2025, worth a combined $866M — up 13% from $765M a quarter earlier.

Buyers outnumbered sellers: 34 funds opened new PRLB positions and 21 closed out — a net gain of 13 holders — while 65 added to existing stakes and 73 trimmed.

The largest buyer was Rubric Capital Management (New York), adding an estimated $34.2M. The largest seller was Wellington Management Group, exiting entirely with an estimated $24.9M sold.

  • 201 institutional investors held Protolabs (PRLB) as of Q2 2025, up from 188 in Q1 2025.
  • Funds reported $866M of Protolabs stock for Q2 2025, up 13% quarter-over-quarter.
  • 34 funds opened new Protolabs positions in Q2 2025 and 21 closed out, a net change of +13 holders.
  • The largest Protolabs buyer in Q2 2025 was Rubric Capital Management (New York), an estimated $34.2M added.
  • The largest Protolabs seller in Q2 2025 was Wellington Management Group, an estimated $24.9M sold.

Based on aggregated 13F filings for Q2 2025.