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STATE OF WISCONSIN INVESTMENT BOARD

Position in PRLB — Proto Labs Inc

CIK 854157 MADISON, WI

Position in PRLB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$914,949
+$296,853 QoQ
Shares Held
11,225
+3.6% QoQ
Ownership
0.047%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#110
of 276 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PRLB Over Time

Shares Held

Position Value (USD)

Position in Metal Fabrication

Industrials · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $94,860,727 across 11 Metal Fabrication names. PRLB ranks #7 (1.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 PRLB
Proto Labs Inc
This page
11,225 $914,949

All Filings in PRLB

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $914,949 11,225
2026-03-31 $618,096 10,840
2025-12-31 $670,772 13,259
2025-09-30 $466,829 9,331
2024-03-31 $434,040 12,141
2023-12-31 $688,579 17,674
2023-09-30 $501,441 18,994
2023-06-30 $1,516,529 43,379
2023-03-31 $1,688,130 50,924
2022-12-31 $1,555,491 60,928
2022-09-30 $1,516,435 41,626
2022-06-30 $2,931,348 61,274
2022-03-31 $2,885,695 54,550
2021-12-31 $2,303,047 44,850
2021-09-30 $2,487,510 37,350
2021-06-30 $3,593,970 39,150
2021-03-31 $4,766,512 39,150
2020-12-31 $7,263,490 47,350
2020-09-30 $6,947,675 53,650
2020-06-30 $6,855,046 60,950
2020-03-31 $4,472,637 58,750