Bio-Rad Laboratories, Inc.
US ˙ NYSE ˙ US0905722072

SecurityBIO / Bio-Rad Laboratories, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership67,436 shares
Latest Disclosed Value $ 18,797,785
Man Group plc reports 978.80% increase in ownership of BIO / Bio-Rad Laboratories, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 67,436 shares of Bio-Rad Laboratories, Inc. (US:BIO) valued at $18,797,785 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,251 shares of Bio-Rad Laboratories, Inc.. This represents a change in shares of 978.80% during the quarter. The current value of the position is $20,556,516 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BIO RAD LABS CL A 090572207 67,436 61,185 978.80 18,798 892.97 0.0341
2026-02-17 2025-12-31 13F BIO RAD LABS CL A 090572207 6,251 -26,732 -81.05 1,894 -79.53 0.0032
2025-11-14 2025-09-30 13F BIO RAD LABS CL A 090572207 32,983 -47,305 -58.92 9,248 -52.27 0.0161
2025-08-14 2025-06-30 13F BIO RAD LABS CL A 090572207 80,288 73,575 1,096.01 19,375 1,085.02 0.0369
2025-05-15 2025-03-31 13F BIO RAD LABS CL A 090572207 6,713 -1,005 -13.02 1,635 -35.50 0.0041
2025-02-14 2024-12-31 13F BIO RAD LABS CL A 090572207 7,718 7,718 2,535 0.0067
2024-05-15 2024-03-31 13F BIO RAD LABS CL A 090572207 0 -40,743 -100.00 0 -100.00
2024-02-14 2023-12-31 13F BIO RAD LABS CL A 090572207 40,743 13,156 692.47 0.0366
2023-11-14 2023-09-30 13F BIO RAD LABS CL A 090572207 1,661 -78.20 0.0051
2023-05-15 2023-03-31 13F BIO RAD LABS CL A 090572207 7,614 -56.42 0.0271
2023-02-14 2022-12-31 13F BIO RAD LABS CL A 090572207 41,548 29,914 257.13 17,471 259.98 0.0626
2022-11-14 2022-09-30 13F BIO RAD LABS CL A 090572207 11,634 4,853 -46.83 0.0225
2022-08-15 2022-06-30 13F BIO RAD LABS CL A 090572207 9,127 -63.74 0.0387
2022-05-16 2022-03-31 13F BIO RAD LABS CL A 090572207 44,697 19,427 76.88 25,174 31.85 0.0876
2022-02-14 2021-12-31 13F BIO RAD LABS CL A 090572207 25,270 15,973 171.81 19,093 175.31 0.0614
2021-11-15 2021-09-30 13F BIO RAD LABS CL A 090572207 9,297 6,640 249.91 6,935 305.08 0.0243
2021-08-16 2021-06-30 13F BIO RAD LABS CL A 090572207 2,657 -1,209 -31.27 1,712 -22.46 0.0060
2021-05-17 2021-03-31 13F BIO RAD LABS CL A 090572207 3,866 -3,039 -44.01 2,208 -45.14 0.0097
2021-02-16 2020-12-31 13F BIO RAD LABS CL A 090572207 6,905 -6,542 -48.65 4,025 -41.93 0.0177
2020-11-16 2020-09-30 13F BIO RAD LABS CL A 090572207 13,447 604 4.70 6,931 19.54 0.0273
2020-08-14 2020-06-30 13F BIO RAD LABS CL A 090572207 12,843 4,075 46.48 5,798 88.61 0.0292
2020-05-15 2020-03-31 13F BIO RAD LABS CL A 090572207 8,768 -48,622 -84.72 3,074 -85.52 0.0199
2020-02-18 2019-12-31 13F BIO RAD LABS CL A 090572207 57,390 39,522 221.19 21,236 257.21 0.0698
2019-11-14 2019-09-30 13F BIO RAD LABS CL A 090572207 17,868 3,499 24.35 5,945 32.35 0.0221
2019-08-14 2019-06-30 13F BIO RAD LABS CL A 090572207 14,369 -12,553 -46.63 4,492 -45.42 0.0162
2019-05-15 2019-03-31 13F BIO RAD LABS CL A 090572207 26,922 11,512 74.70 8,230 130.02 0.0312
2019-02-14 2018-12-31 13F BIO RAD LABS CL A 090572207 15,410 -30,081 -66.13 3,578 -74.87 0.0159
2018-11-14 2018-09-30 13F BIO RAD LABS CL A 090572207 45,491 23,893 110.63 14,238 128.47 0.0520
2018-08-14 2018-06-30 13F BIO RAD LABS CL A 090572207 21,598 14,254 194.09 6,232 239.43 0.0256
2018-05-15 2018-03-31 13F BIO RAD LABS CL A 090572207 7,344 7,344 1,836 0.0084
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.