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STATE OF WISCONSIN INVESTMENT BOARD

Position in BIO — Bio-Rad Laboratories, Inc.

CIK 854157 MADISON, WI

Position in BIO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$4,170,730
+$526,353 QoQ
Shares Held
14,205
+8.7% QoQ
Ownership
0.053%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#101
of 397 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BIO Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $434,626,517 across 40 Medical Devices names. BIO ranks #19 (1.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in BIO

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,170,730 14,205
2026-03-31 $3,644,377 13,074
2025-12-31 $4,135,207 13,648
2025-09-30 $4,450,350 15,872
2025-06-30 $3,885,734 16,102
2025-03-31 $3,529,671 14,492
2024-12-31 $5,043,614 15,353
2024-09-30 $3,968,453 11,861
2024-06-30 $5,548,229 20,315
2024-03-31 $4,356,924 12,597
2023-12-31 $4,649,616 14,400
2023-09-30 $4,226,842 11,792
2023-06-30 $4,899,367 12,923
2023-03-31 $6,254,085 13,056
2022-12-31 $4,705,283 11,190
2022-09-30 $5,495,819 13,175
2022-06-30 $7,982,370 16,126
2022-03-31 $9,753,453 17,317
2021-12-31 $25,733,203 34,058
2021-09-30 $30,797,291 41,286
2021-06-30 $21,290,563 33,045
2021-03-31 $25,953,964 45,440
2020-12-31 $27,334,639 46,891
2020-09-30 $23,675,593 45,931
2020-06-30 $15,259,007 33,797
2020-03-31 $13,359,491 38,109