WhaleCreep

Which hedge funds own PRLB? PROTO LABS INC, Q2 2026 13F holders

IndustrialsMetal Fabrication

33 tracked hedge funds disclosed a position in PRLB (PROTO LABS INC) in their Q2 2026 13F filings, worth $209.7m in total. The largest holder by portfolio weight is S Squared Technology, LLC at 7.3% of its book. 7 opened a new position this quarter: Roubaix Capital, LLC, SG Capital Management LLC, Militia Capital Management LLC, ExodusPoint Capital Management, LP. 8 exited: Archon Capital Management LLC, Bastion Asset Management Inc., Polar Asset Management Partners Inc..

33
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
7
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
8
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$10.4m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$18.4m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$210m
Combined value
Sum of the holders' reported positions in the security.
2.7%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

33 rows
S Squared Technology, LLC Hedge fund7.3%$23.5m288,120−2.7%reduced
Roubaix Capital, LLC Hedge fund1.6%$4.5m55,415–new
Hillsdale Investment Management Inc. Hedge fund0.4%$15.6m191,594+9.9%added
Campbell & CO Investment Adviser LLC Hedge fund0.2%$3.5m42,798+182%added
Edgestream Partners, L.P. Hedge fund0.2%$5.4m65,799+246%added
SG Capital Management LLC Hedge fund0.1%$1.6m20,068–new
Militia Capital Management LLC Hedge fund0.1%$815k10,000–new
GABELLI & Co INVESTMENT ADVISERS, INC. Hedge fund0.08%$571k7,000−52%reduced
Rubric Capital Management LP Hedge fund0.08%$8.9m108,692−78%reduced
Jupiter Asset Management Ltd Hedge fund0.08%$15.4m188,539−3.2%reduced
Gsa Capital Partners LLP Hedge fund0.05%$864k10,603−77%reduced
Renaissance Technologies LLC Hedge fund0.05%$38.2m469,251−9.8%reduced
Dark Forest Capital Management LP Hedge fund0.04%$692k8,490−40%reduced
Aquatic Capital Management LLC Hedge fund0.03%$898k11,017+272%added
Engineers Gate Manager LP Hedge fund0.03%$2.2m26,780+85%added
ExodusPoint Capital Management, LP Hedge fund0.03%$2.7m33,683–new
Polen Capital Long-only investor0.02%$2.9m35,011−6.9%reduced
CenterBook Partners LP Hedge fund0.02%$479k5,880–new
Prelude Capital Management, LLC Hedge fund0.02%$232k2,846−27%reduced
Mangrove Partners IM, LLC Hedge fund0.02%$256k3,136–new
Arrowstreet Capital, Limited Partnership Hedge fund0.02%$35.9m440,816−5.0%reduced
D. E. Shaw & Co., Inc. Hedge fund0.01%$17.2m211,366−6.3%reduced
Centiva Capital, LP Hedge fund0.01%$254k3,111−39%reduced
Trexquant Investment LP Hedge fund0.01%$1.2m14,219−79%reduced
Millennium Management LLC Hedge fund0.01%$7.6m92,960+260%added
Point72 Asset Management, L.P. Hedge fund0.0%$3.0m37,033+14%added
Citadel Advisors LLC Hedge fund0.0%$7.2m88,625+99%added
Squarepoint Ops LLC Hedge fund0.0%$1.3m16,439−60%reduced
AQR Capital Management LLC Hedge fund0.0%$4.3m53,319−3.3%reduced
Quarry LP Hedge fund0.0%$8.3k102+252%added
Marshall Wace, LLP Hedge fund0.0%$1.4m16,921−75%reduced
Two Sigma Investments, LP Hedge fund0.0%$1.0m12,734+4.4%added
Fulcrum Asset Management LLP Hedge fund0.0%$1.4k18–new