Round Rock Advisors »

Proto Labs shares owned by Round Rock Advisors

Quarter-by-quarter ownership of Proto Labs (PRLB) shares owned by Round Rock Advisors from 13F filings

Historical chart of Round Rock Advisors investment in Proto Labs

Tip: Access up to 7 years of quarterly data

All positions including Proto Labs held by Round Rock Advisors consolidated in one spreadsheet with up to 7 years of data

Download as csvDownload consolidated filings csv Download as ExcelDownload consolidated filings xlsx

Quarterly reported holdings in Proto Labs by Round Rock Advisors

Quarter filed Position value Share count Share price at filing
2025-09-30 $331k 6.6k 50.03

More positions owned by Round Rock Advisors

Invesco Qqq Tr Unit Ser 1 (QQQ)
J P Morgan Exchange Traded F Ultra Shrt Etf (JPST)
Vanguard Whitehall Fds High Div Yld (VYM)
Vaneck Etf Trust Semiconductr Etf (SMH)
Ishares Tr Core S&p Scp Etf (IJR)
Vanguard Index Fds Mid Cap Etf (VO)
Apple (AAPL)
Microsoft Corporation (MSFT)
Select Sector Spdr Tr Indl (XLI)
Ishares Tr Select Divid Etf (DVY)
Berkshire Hathaway Inc Del Cl A (BRK.A)
Select Sector Spdr Tr Sbi Healthcare (XLV)
Invesco Exchange Traded Fd T S&p500 Eql Wgt (RSP)
Alphabet Cap Stk Cl C (GOOG)
American Centy Etf Tr Short Durtn Strg (SDSI)

View all positions for Round Rock Advisors

Top funds holding Proto Labs

BlackRock
Vanguard Group
Disciplined Growth Investors
Dimensional Fund Advisors
State Street Corporation
Rubric Capital Management
Geode Capital Management
Renaissance Technologies
Arrowstreet Capital, Limited Partnership
Morgan Stanley
D. E. Shaw & Co
Charles Schwab Investment Management
Nuveen
S Squared Technology
Luke P. La Valle, Jr.

View all funds holding Proto Labs