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.
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
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RCMNY
Rubric Capital Management (New York)
New York
|
+$34.2M |
| 2 |
Millennium Management
New York
|
+$5.78M |
| 3 |
Nuveen
Charlotte,
North Carolina
|
+$4.16M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$4.15M |
| 5 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
+$2.56M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$24.9M |
| 2 |
First Trust Advisors
Wheaton,
Illinois
|
-$19.4M |
| 3 |
BlackRock
New York
|
-$7.88M |
| 4 |
D.E. Shaw & Co
New York
|
-$3.15M |
| 5 |
TI
Trexquant Investment
Stamford,
Connecticut
|
-$3.02M |
PRLB Hedge Fund Activity: Q2 2025 in Review
201 of the 7,613 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.