Changes in Beneficial Ownership · 4
Bio-Rad Laboratories, Inc.
Changes in Beneficial Ownership
Structured filing — 4
wk-form4_1788471355.xml
Filing details
- Report period
- 2026-09-01
- Issuer
- BIO-RAD LABORATORIES, INC.
- Issuer CIK
- 0000012208
- Trading symbol
- BIO BIO.B
Reporting owner 1
- Name
- SCHWARTZ NORMAN D
- Reporting owner CIK
- 0000940805
- Relationship
- Director · Officer · 10% owner
- Officer title
- Chairman & CEO
- Address
- C/O BIO-RAD LABORATORIES, INC., 1000 ALFRED NOBEL DRIVE, HERCULES, CA, 94547
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| Bio-Rad A Common Stock | 2026-09-01 | M · Form 4 | 5,087[F1] | A | 0 | 448,521 | D |
| Bio-Rad A Common Stock | 2026-09-01 | F · Form 4 | 2,336 | D | 380.96 | 446,185 | D |
Table key
- M · Form 4
- Exempt derivative exercise or conversion under Rule 16b-3
- A
- Acquired
- D
- Direct
- F · Form 4
- Securities delivered or withheld for exercise price or tax liability under Rule 16b-3
Non-derivative holdings
| Security | Amount owned | Ownership | Nature of ownership |
|---|---|---|---|
| Bio-Rad B Common Stock | 361,466 | D | |
| Bio-Rad B Common Stock | 13,006 | I | By Spouse[F2] |
| Bio-Rad B Common Stock | 4,060,054 | I | By Blue Raven Partners, L.P.[F3] |
| Bio-Rad A Common Stock | 1,781,356 | I | By Alice N. Schwartz Revocable Trust[F4] |
| Bio-Rad A Common Stock | 90 | I | By David Schwartz Exemption Trust[F4] |
| Bio-Rad A Common Stock | 240 | I | By David Schwartz Exempt Martial Trust[F4] |
| Bio-Rad A Common Stock | 898,931 | I | By David Schwartz Non-Exempt Martial Trust[F4] |
| Bio-Rad B Common Stock | 57,000 | I | By David Schwartz Non-Exempt Martial Trust[F4] |
| Bio-Rad A Common Stock | 34,311 | I | By Charitable Remainder Unitrust[F4] |
| Bio-Rad B Common Stock | 437,510 | I | By Alice N. Schwartz Revocable Trust[F4] |
Table key
- D
- Direct
- I
- Indirect
Derivative transactions
| Security | Conversion / exercise price (USD) | Transaction date | Code | Amount | A / D | Price (USD) | Exercisable | Expires | Underlying security | Underlying shares | Owned after | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock Units | 0[F5] | 2026-09-01 | M · Form 4 | 2,082 | D | 0 | [F6] | [F6] | Bio-Rad A Common Stock | 2,082 | 0 | D |
| Restricted Stock Units | 0[F5] | 2026-09-01 | M · Form 4 | 3,005 | D | 0 | [F7] | [F7] | Bio-Rad A Common Stock | 3,005 | 3,005 | D |
Table key
- M · Form 4
- Exempt derivative exercise or conversion under Rule 16b-3
- D
- Direct
Footnotes
- F1
- Shares of Class A common stock acquired on the vesting of restricted stock units.↩ 1
- F2
- The reporting person disclaims beneficial ownership of these shares.↩ 1
- F3
- The shares are held by a limited partnership of which the reporting person is a limited and general partner. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.↩ 1
- F4
- The shares are held by in trust of which the reporting person serves as the trustee. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.↩ 1↩ 2↩ 3↩ 4↩ 5↩ 6↩ 7
- F5
- Each restricted stock unit represents a contingent right to receive one share of Bio-Rad Class A common stock.↩ 1↩ 2
Signature 1
- Signed
- /s/ Norman Schwartz
- Date
- 2026-09-03
Company context
Bio-Rad Laboratories, Inc. (NYSE: BIO and BIO. B) is a leader in developing, manufacturing, and marketing a broad range of products for the life science research and clinical diagnostics markets. Based in Hercules, California, Bio-Rad operates a global network of research, development, manufacturing, and sales operations with approximately 7,100 employees and $2.6 billion in revenues in 2025. Our customers include universities, research institutions, hospitals, and biopharmaceutical companies, as well as clinical, food safety and environmental quality laboratories. Together, we develop innovative, high-quality products that advance science and save lives. To learn more, visit bio-rad.com