PRLB

PROTO LABS INC
USCUSIP 743713109
Institutional Owners
83
+17 QoQ
13F Value Held
$497.5M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)46 adding · 27 trimming
Insider net (180d)+$0
Price history not yet available for PRLB.

Top institutional holders

83 13F filers
#FundPosition valueSharesLast moveAs of
1DISCIPLINED GROWTH INVESTORS INC /MN
$142.4M
2.50MReducedQ1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$87.7M
1.54MNewQ1 2026
3STATE STREET CORP
$62.3M
1.09MAddedQ1 2026
4VANGUARD CAPITAL MANAGEMENT LLC
$59.3M
1.04MNewQ1 2026
5AMERICAN CAPITAL MANAGEMENT INC
$35.8M
627.7KReducedQ1 2026
6Rubric Capital Management LP
$27.7M
486.4KReducedQ1 2026
7PANAGORA ASSET MANAGEMENT INC
$10.0M
174.7KReducedQ1 2026
8VANGUARD FIDUCIARY TRUST CO
$8.8M
153.6KNewQ1 2026
9Connor, Clark & Lunn Investment Management Ltd.
$7.2M
125.5KReducedQ1 2026
10RICE HALL JAMES & ASSOCIATES, LLC
$6.5M
113.6KReducedQ1 2026
11PUBLIC SECTOR PENSION INVESTMENT BOARD
$6.0M
105.6KReducedQ1 2026
12SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
$5.7M
100.0KNewQ1 2026
13Trexquant Investment LP
$3.9M
68.7KAddedQ1 2026
14Polar Asset Management Partners Inc.
$3.4M
60.4KReducedQ1 2026
15ARK Investment Management LLC
$2.6M
45.7KReducedQ1 2026
16ZACKS INVESTMENT MANAGEMENT
$2.5M
43.9KAddedQ1 2026
17INTECH INVESTMENT MANAGEMENT LLC
$2.2M
39.0KAddedQ1 2026
18POLEN CAPITAL MANAGEMENT LLC
$2.1M
37.6KAddedQ1 2026
19Point72 Asset Management, L.P.
$1.8M
32.4KReducedQ1 2026
20BRIDGEWAY CAPITAL MANAGEMENT, LLC
$1.3M
22.0KReducedQ1 2026
21GILDER GAGNON HOWE & CO LLC
$1.2M
21.3KNewQ1 2026
22TEACHER RETIREMENT SYSTEM OF TEXAS
$1.2M
20.9KReducedQ1 2026
23Edgestream Partners, L.P.
$1.1M
19.0KNewQ1 2026
24CITADEL ADVISORS LLC
$973K
17.1KAddedQ1 2026
25Tidal Investments LLC
$887K
15.6KAddedQ1 2026

Fund activity — latest quarter

Opened (NEW)
26
funds
Added
20
funds
Reduced
23
funds
Exited
4
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

76 funds+74 since Q2 2022
03876Q2 2022Q1 2023Q4 2023Q3 2024Q2 2025Q1 2026
funds holding aggregate valuelatest $402M

Funds that own PRLB also own

CompanyCo-held byCombined value
Microsoft CorporationMSFT75 funds$144.3B
Amazon.com, Inc.AMZN74 funds$105.7B
Broadcom LtdAVGO73 funds$77.1B
Meta Platforms, Inc.META73 funds$65.6B
Nvidia CorpNVDA72 funds$220.0B
Apple IncAAPL72 funds$189.5B
Tesla IncTSLA72 funds$52.6B
Lilly Eli & CoLLY72 funds$41.5B
Visa Inc-Class A SharesV71 funds$31.9B
Palantir Technologies Inc Cl APLTR71 funds$18.9B
Alphabet Inc. Class AGOOGL70 funds$85.9B
Micron Technology IncMU70 funds$24.3B

Ranked by how many of PRLB's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PRLB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.