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

SecurityBIO / Bio-Rad Laboratories, Inc.
InstitutionPrudential Financial Inc
Latest Disclosed Ownership1,100 shares
Latest Disclosed Value $ 306,625
Prudential Financial Inc reports 10.42% decrease in ownership of BIO / Bio-Rad Laboratories, Inc.

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 1,100 shares of Bio-Rad Laboratories, Inc. (US:BIO) valued at $306,625 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,228 shares of Bio-Rad Laboratories, Inc.. This represents a change in shares of -10.42% during the quarter. The current value of the position is $335,313 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F BIO RAD LABS CL A 090572207 1,100 -128 -10.42 307 -17.96 0.0002
2026-02-13 2025-12-31 13F BIO RAD LABS CL A 090572207 1,228 -801 -39.48 374 -34.33 0.0005
2025-11-13 2025-09-30 13F BIO RAD LABS CL A 090572207 2,029 -101 -4.74 569 10.51 0.0007
2025-08-12 2025-06-30 13F BIO RAD LABS CL A 090572207 2,130 32 1.53 514 0.78 0.0007
2025-05-13 2025-03-31 13F BIO RAD LABS CL A 090572207 2,098 -3,870 -64.85 511 -73.98 0.0007
2025-02-11 2024-12-31 13F BIO RAD LABS CL A 090572207 5,968 3,784 173.26 1,961 168.49 0.0027
2024-11-14 2024-09-30 13F BIO RAD LABS CL A 090572207 2,184 -13,144 -85.75 731 -82.56 0.0010
2024-08-13 2024-06-30 13F BIO RAD LABS CL A 090572207 15,328 -71 -0.46 4,186 -21.39 0.0063
2024-05-14 2024-03-31 13F BIO RAD LABS CL A 090572207 15,399 -193 -1.24 5,326 7.25 0.0075
2024-02-13 2023-12-31 13F BIO RAD LABS CL A 090572207 15,592 -2,923 -15.79 4,965 -25.18 0.0075
2023-11-13 2023-09-30 13F BIO RAD LABS CL A 090572207 18,515 -829 -4.29 6,637 -9.50 0.0104
2023-08-11 2023-06-30 13F BIO RAD LABS CL A 090572207 19,344 -402 -2.04 7,334 -24.86 0.0107
2023-05-12 2023-03-31 13F BIO RAD LABS CL A 090572207 19,746 279 1.43 9,759 19.23 0.0153
2023-02-14 2022-12-31 13F BIO RAD LABS CL A 090572207 19,467 -6,737 -25.71 8,186 -25.21 0.0138
2022-11-04 2022-09-30 13F BIO RAD LABS CL A 090572207 26,204 -3,786 -12.62 10,944 -26.36 0.0186
2022-08-15 2022-06-30 13F BIO RAD LABS CL A 090572207 29,990 -55,063 -64.74 14,862 -68.98 0.0236
2022-05-13 2022-03-31 13F BIO RAD LABS CL A 090572207 85,053 54,789 181.04 47,905 104.09 0.0637
2022-02-14 2021-12-31 13F BIO RAD LABS CL A 090572207 30,264 3,301 12.24 23,473 12.53 0.0292
2021-11-15 2021-09-30 13F BIO RAD LABS CL A 090572207 26,963 -2,208 -7.57 20,859 10.99 0.0291
2021-08-16 2021-06-30 13F BIO RAD LABS CL A 090572207 29,171 7,310 33.44 18,794 50.52 0.0259
2021-05-12 2021-03-31 13F BIO RAD LABS CL A 090572207 21,861 4,274 24.30 12,486 21.78 0.0187
2021-08-16 2020-12-31 13F/A-1 BIO RAD LABS CL A 0582 090572207 17,587 16,644 1,765.01 10,253 2,009.67 0.0172
2021-02-16 2020-12-31 13F BIO RAD LABS CL A 090572207 17,587 16,644 10,252 0.0172
2021-08-05 2020-09-30 13F/A-1 BIO RAD LABS CL A 090572207 943 -2 -0.21 486 13.82 0.0702
2020-11-16 2020-09-30 13F BIO RAD LABS CL A 090572207 16,617 15,672 8,565 0.0162
2021-08-05 2020-06-30 13F/A-1 BIO RAD LABS CL A 0451 090572207 945 104 12.37 427 44.75 0.0791
2020-08-12 2020-06-30 13F BIO RAD LABS CL A 090572207 27,199 26,358 12,281 0.0236
2021-08-05 2020-03-31 13F/A-1 BIO RAD LABS CL A 0350 090572207 841 76 9.93 295 4.24 0.0766
2020-05-12 2020-03-31 13F BIO RAD LABS CL A 090572207 38,804 38,039 13,603 0.0301
2021-08-05 2019-12-31 13F/A-1 BIO RAD LABS CL A 0370 090572207 765 38 5.23 283 16.94 0.0738
2020-02-11 2019-12-31 13F BIO RAD LABS CL A 090572207 65,692 64,965 24,308 0.0360
2021-08-05 2019-09-30 13F/A-1 BIO RAD LABS CL A 0332 090572207 727 9 1.25 242 8.04 0.0790
2019-11-13 2019-09-30 13F BIO RAD LABS CL A 090572207 82,923 82,205 27,592 0.0438
2021-08-05 2019-06-30 13F/A-1 BIO RAD LABS CL A 090572207 718 118 19.67 224 22.40 0.0778
2019-08-08 2019-06-30 13F BIO RAD LABS CL A 090572207 78,064 77,464 24,402 0.0380
2021-08-05 2019-03-31 13F/A-1 BIO RAD LABS CL A 090572207 600 414 222.58 183 325.58 0.0777
2019-05-15 2019-03-31 13F BIO RAD LABS CL A 090572207 12,254 12,068 3,746 0.0062
2021-08-05 2018-12-31 13F/A-1 BIO RAD LABS CL A 090572207 186 136 272.00 43 168.75 0.0348
2019-02-07 2018-12-31 13F BIO RAD LABS CL A 090572207 17,834 -60,097 4,141 0.0073
2021-09-01 2018-09-30 13F/A-1 BIO RAD LABS CL A 0312 090572207 50 40 400.00 16 433.33 0.0257
2018-11-07 2018-09-30 13F BIO RAD LABS CL A 090572207 77,931 77,921 24,392 0.0359
2021-09-01 2018-06-30 13F/A-1 BIO RAD LABS CL A 090572207 10 4 66.67 3 50.00 0.0108
2018-08-13 2018-06-30 13F BIO RAD LABS CL A 090572207 27,366 27,360 7,896 0.0118
2021-09-01 2018-03-31 13F/A-1 BIO RAD LABS CL A 090572207 6 -13,324 -99.95 2 -99.94 0.0261
2018-05-04 2018-03-31 13F BIO RAD LABS CL A 090572207 15,256 1,926 3,815 0.0058
2018-02-13 2017-12-31 13F BIO RAD LABS CL A 090572207 13,330 161 1.22 3,181 8.71 0.0043
2017-11-30 2017-09-30 13F/A-1 BIO RAD LABS CL A 090572207 13,169 -30,319 -69.72 2,926 -70.27 0.0319
2017-08-07 2017-06-30 13F BIO RAD LABS CL A 090572207 43,488 30,179 226.76 9,841 270.94 0.0146
2017-05-10 2017-03-31 13F BIO RAD LABS CL A 090572207 13,309 940 7.60 2,653 17.65 0.0041
2017-02-07 2016-12-31 13F BIO RAD LABS CL A 090572207 12,369 -136 -1.09 2,255 10.11 0.0036
2016-11-04 2016-09-30 13F BIO RAD LABS CL A 090572207 12,505 -370 -2.87 2,048 11.24 0.0034
2016-08-09 2016-06-30 13F BIO RAD LABS CL A 090572207 12,875 200 1.58 1,841 6.23 0.0031
2016-05-09 2016-03-31 13F BIO RAD LABS CL A 090572207 12,675 -11,240 -47.00 1,733 -47.74 0.0031
2016-02-12 2015-12-31 13F BIO RAD LABS CL A 090572207 23,915 11,150 87.35 3,316 93.47 0.0060
2015-11-10 2015-09-30 13F BIO RAD LABS CL A 090572207 12,765 -6,450 -33.57 1,714 -40.77 0.0034
2015-08-06 2015-06-30 13F BIO RAD LABS CL A 090572207 19,215 4,370 29.44 2,894 44.20 0.0051
2015-05-01 2015-03-31 13F BIO RAD LABS CL A 090572207 14,845 -300 -1.98 2,007 9.91 0.0035
2015-02-06 2014-12-31 13F BIO RAD LABS CL A 090572207 15,145 1,400 10.19 1,826 17.13 0.0033
2014-11-12 2014-09-30 13F BIO RAD LABS CL A 090572207 13,745 -1,237 -8.26 1,559 -13.05 0.0029
2014-08-13 2014-06-30 13F BIO RAD LABS CL A 090572207 14,982 1,637 12.27 1,793 4.85 0.0032
2014-05-14 2014-03-31 13F BIO RAD LABS CL A 090572207 13,345 240 1.83 1,710 5.56 0.0032
2014-02-11 2013-12-31 13F BIO RAD LABS CL A 090572207 13,105 -7,600 -36.71 1,620 -33.44 0.0032
2013-11-07 2013-09-30 13F BIO RAD LABS CL A 090572207 20,705 -10,720 -34.11 2,434 -30.97 0.0052
2013-08-07 2013-06-30 13F BIO RAD LABS CL A 090572207 31,425 31,425 3,526 0.0078
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.