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Round Rock Advisors’s Protolabs PRLB Stock Holding History

Round Rock Advisors’s Portfolio PRLB Stock Details PRLB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$914K Hold
11,219
– – 0.12% 137
2026
Q1 		$640K Hold
11,219
– – 0.1% 164
2025
Q4 		$568K Buy
11,219
+4,609
+70% +$236K 0.09% 181
2025
Q3 		$331K Buy
+6,610
New +$303K 0.05% 232

Other funds holding PRLB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $5.91B AUM 53.97% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
ACM
American Capital Management New York $2.23B AUM 28.03% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Prudential Financial
Prudential Financial Newark, New Jersey $91.8B AUM 38.24% 1-Year Est. Return

Round Rock Advisors's PRLB Position: Q2 2026 in Review

Round Rock Advisors held its Protolabs (PRLB) position steady in Q2 2026 at 11,219 shares worth $914K. The position accounts for 0.12% of the portfolio, ranked #137.

Round Rock Advisors first reported a position in PRLB in Q3 2025 and has held it in 4 quarters since. 278 funds tracked by Wall St. Rank hold PRLB as of Q2 2026.

  • Round Rock Advisors held 11,219 shares of Protolabs worth $914K as of Q2 2026.
  • Round Rock Advisors left its Protolabs share count unchanged in Q2 2026.
  • Protolabs made up 0.12% of Round Rock Advisors's portfolio in Q2 2026, its #137 holding.
  • Round Rock Advisors first reported a position in Protolabs in Q3 2025 and has held it in 4 quarters since.
  • 278 funds tracked by Wall St. Rank held Protolabs as of Q2 2026.

Based on Round Rock Advisors's 13F filing for Q2 2026, filed 12 Aug 2026.