Karl Marshall Johnston
Claim this profileKarl Marshall Johnston is a lawyer licensed in California under State Bar of California bar number 327446. According to State Bar of California records, the license status of Karl Marshall Johnston is Active, with admission in December 2019. Karl Marshall Johnston has an address of record in San Francisco, San Francisco County, California, with Anthropic, PBC. This page is a directory listing by ALCBar Lawyer Directory; it is not an endorsement or a referral.
License
- License jurisdiction
- California
- Licensing authority
- State Bar of California
- Bar number
- 327446
- License status
- Active, according to State Bar of California records (official record)
- Admitted
- December 2019
- Status last verified
- Not yet verified by ALCBar. The status was copied from State Bar of California public records no later than June 3, 2026 (exact collection date not recorded) and has not been re-checked against the State Bar since.
Firm and location
- Firm or employer
- Anthropic, PBC
- Address of record
- 500 Howard St, San Francisco, CA 94105
- City
- San Francisco
- County
- San Francisco County
- Office state or country
- California
- ZIP code
- 94105
Contact details
- Phone
- Not stated in the source
- Fax
- Not stated in the source
- Not stated in the source
- Website
- Not stated in the source
Practice areas
Commercial Law, Intellectual Property, Litigation. Listed in the directory's source file. Where that list came from is not confirmed, and Karl Marshall Johnston has not confirmed it. It is not a certification of specialization.
Documented matter experience
ALCBar has no reviewed matter records for Karl Marshall Johnston. This means the information is not available, not that Karl Marshall Johnston lacks experience.
Sources and verification
| Information | Source | Status |
|---|---|---|
| Name, bar number, license status, admission date | State Bar of California attorney record | Copy of the public record; not re-checked by ALCBar since it was copied |
| Firm, address, phone, fax, email, website | Directory copy of State Bar of California records | Not confirmed by Karl Marshall Johnston; email delivery not tested |
| Practice areas | Directory source file (origin not confirmed) | Not confirmed |
| Information confirmed by the attorney | Profile claim | None. This profile has not been claimed. |
| Independently reviewed information | ALCBar review | None |
Directory listing last updated 2026-10-11. If anything here differs from the State Bar of California record, the State Bar of California record is the authority.
This listing comes from public State Bar records. It is not an endorsement, a referral, or a statement about the skills of Karl Marshall Johnston. ALCBar does not receive payment for this listing.