• Committees
  • Donors
  • Candidates
  • Top donors

  • Methodology
  • Privacy
Built from California Secretary of State filings © 2026Public data. No affiliation with the State of California.
CalAccess Runway
HomeCommitteesDonorsCandidatesBallot measuresMethodology
HomeCommitteesDonorsCandidatesBallot measuresMethodology
RunwayDonorsARTHUR ROCK

Donor header

ARTHUR ROCK

Individual · SAN FRANCISCO, CA · ARTHUR ROCK & CO. · FOUNDER

$1,652,950 total given · Largest contribution $800,000

Giving is concentrated among a small set of recipients.

Active cycles

1999-20002001-20022003-20042005-20062007-20082009-20102011-20122013-20142015-20162017-20182019-20202021-20222023-20242025-2026

Panel 2 • Finance overview

Total given

$1,652,950

First seen Jul 2, 2019 · Last activity Jun 29, 2025

Contribution footprint

9 recipients

11 contributions · Avg $150,268

Concentration

Top recipient 48.4%

Top 3 92.2%

Top 10 100%

Total givingReference baseline
123
Apr 2021Dec 2022Jul 2024Mar 2026

Spike markers

  1. 1Nov 2021 · CALIFORNIA EDUCATORS, PARENTS AND STUDENTS FOR HIGH-QUALITY PUBLIC EDUCATION · $800,000
  2. 2Sep 2022 · NO ON 30 · $499,000
  3. 3Oct 2022 · CALIFORNIA CHARTER SCHOOLS ASSOCIATION ADVOCATES, AN IRC 501 (C) (4) ORGANIZATION · $225,000

Panel 3 • Top recipients

RecipientTotalShare*CountDatesDetails
CALIFORNIA EDUCATORS, PARENTS AND STUDENTS FOR HIGH-QUALITY PUBLIC EDUCATION$800,00048.4%1Nov 2021 - Nov 2021
NO ON 30$499,00030.2%1Sep 2022 - Sep 2022
CALIFORNIA CHARTER SCHOOLS ASSOCIATION ADVOCATES, AN IRC 501 (C) (4) ORGANIZATION$225,00013.6%1Oct 2022 - Oct 2022
NEIGHBORS FOR A BETTER SAN FRANCISCO ADVOCACY$50,0003%1Jul 2021 - Jul 2021
DEMOCRATS FOR EDUCATIONAL EQUITY (MPO)$32,5502%2Oct 2022 - Jan 2023
GO PUBLIC SCHOOLS CALIFORNIA, SPONSORED BY GO PUBLIC SCHOOLS ADVOCATES$30,0001.8%1Feb 2020 - Feb 2020
PLATA FOR ASSEMBLY 2020$9,4000.6%2Jul 2019 - Jul 2020
BONTA FOR CA ATTORNEY GENERAL 2022; ROB$5,0000.3%1Oct 2022 - Oct 2022
SCHAAF FOR TREASURER 2026; LIBBY$2,0000.1%1Jun 2025 - Jun 2025
Showing 9 of 9

* Share is percent of donor total in the selected scope. Page rows are a subset and typically do not sum to 100%.

RunwayDonorsARTHUR ROCK

Donor header

ARTHUR ROCK

Individual · SAN FRANCISCO, CA · ARTHUR ROCK & CO. · FOUNDER

$1,652,950 total given · Largest contribution $800,000

Giving is concentrated among a small set of recipients.

Active cycles

1999-20002001-20022003-20042005-20062007-20082009-20102011-20122013-20142015-20162017-20182019-20202021-20222023-20242025-2026

Panel 2 • Finance overview

Total given

$1,652,950

First seen Jul 2, 2019 · Last activity Jun 29, 2025

Contribution footprint

9 recipients

11 contributions · Avg $150,268

Concentration

Top recipient 48.4%

Top 3 92.2%

Top 10 100%

Total givingReference baseline
123
Apr 2021Dec 2022Jul 2024Mar 2026

Spike markers

  1. 1Nov 2021 · CALIFORNIA EDUCATORS, PARENTS AND STUDENTS FOR HIGH-QUALITY PUBLIC EDUCATION · $800,000
  2. 2Sep 2022 · NO ON 30 · $499,000
  3. 3Oct 2022 · CALIFORNIA CHARTER SCHOOLS ASSOCIATION ADVOCATES, AN IRC 501 (C) (4) ORGANIZATION · $225,000

Panel 3 • Top recipients

RecipientTotalShare*CountDatesDetails
CALIFORNIA EDUCATORS, PARENTS AND STUDENTS FOR HIGH-QUALITY PUBLIC EDUCATION$800,00048.4%1Nov 2021 - Nov 2021
NO ON 30$499,00030.2%1Sep 2022 - Sep 2022
CALIFORNIA CHARTER SCHOOLS ASSOCIATION ADVOCATES, AN IRC 501 (C) (4) ORGANIZATION$225,00013.6%1Oct 2022 - Oct 2022
NEIGHBORS FOR A BETTER SAN FRANCISCO ADVOCACY$50,0003%1Jul 2021 - Jul 2021
DEMOCRATS FOR EDUCATIONAL EQUITY (MPO)$32,5502%2Oct 2022 - Jan 2023
GO PUBLIC SCHOOLS CALIFORNIA, SPONSORED BY GO PUBLIC SCHOOLS ADVOCATES$30,0001.8%1Feb 2020 - Feb 2020
PLATA FOR ASSEMBLY 2020$9,4000.6%2Jul 2019 - Jul 2020
BONTA FOR CA ATTORNEY GENERAL 2022; ROB$5,0000.3%1Oct 2022 - Oct 2022
SCHAAF FOR TREASURER 2026; LIBBY$2,0000.1%1Jun 2025 - Jun 2025
Showing 9 of 9

* Share is percent of donor total in the selected scope. Page rows are a subset and typically do not sum to 100%.

Scope: All time60 points
Scope: All time60 points