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

SecurityBIO / Bio-Rad Laboratories, Inc.
InstitutionAmundi
Latest Disclosed Ownership38,778 shares
Latest Disclosed Value $ 10,809,368
Amundi reports 1,763.43% increase in ownership of BIO / Bio-Rad Laboratories, Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 38,778 shares of Bio-Rad Laboratories, Inc. (US:BIO) valued at $10,809,368 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,081 shares of Bio-Rad Laboratories, Inc.. This represents a change in shares of 1,763.43% during the quarter. The current value of the position is $11,820,698 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 38,778 36,697 1,763.43 10,809 1,615.71 0.0012
2026-02-17 2025-12-31 13F BIO RAD LABS CL A 090572207 2,081 31 1.51 631 -0.47 0.0002
2025-11-14 2025-09-30 13F BIO RAD LABS CL A 090572207 2,050 174 9.28 634 34.68 0.0002
2025-08-13 2025-06-30 13F BIO RAD LABS CL A 090572207 1,876 -21,460 -91.96 470 -91.42 0.0002
2025-05-15 2025-03-31 13F BIO-RAD LABORATORIES CL A 090572207 23,336 3,294 16.44 5,478 -20.63 0.0020
2025-02-07 2024-12-31 13F BIO-RAD LABORATORIES CL A 090572207 20,042 -16,596 -45.30 6,902 -44.46 0.0024
2024-11-13 2024-09-30 13F BIO-RAD LABORATORIES CL A 090572207 36,638 -8,099 -18.10 12,428 2.86 0.0046
2024-08-14 2024-06-30 13F BIO-RAD LABORATORIES CL A 090572207 44,737 234 0.53 12,082 -3.39 0.0046
2024-05-15 2024-03-31 13F BIO-RAD LABORATORIES CL A 090572207 44,503 -150,139 -77.14 12,506 -79.78 0.0054
2024-02-14 2023-12-31 13F BIO-RAD LABORATORIES CL A 090572207 194,642 111,698 134.67 61,851 116.32 0.0278
2023-11-14 2023-09-30 13F BIO-RAD LABORATORIES CL A 090572207 82,944 25,525 44.45 28,593 31.89 0.0141
2023-08-14 2023-06-30 13F BIO-RAD LABORATORIES CL A 090572207 57,419 -41,944 -42.21 21,679 -52.96 0.0110
2023-05-15 2023-03-31 13F BIO-RAD LABORATORIES CL A 090572207 99,363 -152,688 -60.58 46,085 -60.35 0.0248
2023-02-14 2022-12-31 13F BIO RAD LABS CL A 090572207 252,051 78,235 45.01 116,238 46.65 0.0638
2022-11-14 2022-09-30 13F BIO-RAD LABORATORIES CL A 090572207 173,816 145,942 523.58 79,261 482.84 0.0470
2022-09-02 2022-06-30 13F/A-1 BIO-RAD LABORATORIES CL A 090572207 27,874 -9,063 -24.54 13,599 -38.29 0.0109
2022-08-15 2022-06-30 13F BIO-RAD LABORATORIES CL A 090572207 27,874 -9,063 13,599 0.0007
2022-05-16 2022-03-31 13F BIO RAD LABS CL A 090572207 36,937 1,191 3.33 22,036 -3.55 0.0149
2022-02-14 2021-12-31 13F BIO-RAD LABORATORIES CL A 090572207 35,746 30 0.08 22,846 -14.25 0.0145
2021-11-15 2021-09-30 13F BIO-RAD LABORATORIES CL A 090572207 35,716 763 2.18 26,642 121,000.00 0.0187
2021-08-16 2021-06-30 13F BIO-RAD LABORATORIES CL A 090572207 34,953 34,953 23 0.0156
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.