CalAccess Runway

Follow committees, donors, candidates, filings, and ballot measure money in one place.

Built around California Secretary of State filings, with entity pages that let you move from one record into the wider money network around it.

Explore homepageRead methodology

Explore

  • Homepage
  • Committees
  • Donors
  • Candidates

More Data

  • Ballot measures
  • Committee filings
  • Top donors
  • Race browse

About The Data

  • Methodology
  • Privacy Policy
Built from California Secretary of State filings. © 2026 PubSys.
CalAccess Runway
HomeCommitteesDonorsCandidatesBallot measuresMethodology
HomeCommitteesDonorsCandidatesBallot measuresMethodology
RunwayDonorsMARK W. HEISING

Donor header

MARK W. HEISING

Individual · ATHERTON, CA · MEDLEY PARTNERS MANAGEMENT LLC · PARTNER

$932,200 total given · Largest contribution $427,500

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

$932,200

First seen May 16, 2018 · Last activity May 7, 2025

Contribution footprint

5 recipients

5 contributions · Avg $186,440

Concentration

Top recipient 45.9%

Top 3 96.8%

Top 10 100%

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

Spike markers

  1. 1May 2018 · NO RECALL OF JUDGE PERSKY, MAJOR FUNDING BY ELIZABETH SIEGELMAN · $49,900
  2. 2Jun 2021 · NEWSOM; STOP THE REPUBLICAN RECALL OF GOVERNOR · $425,000
  3. 3Oct 2024 · COMMITTEE TO PROTECT PUBLIC SAFETY, SPONSORED BY ACTION FOR SAFETY AND JUSTICE · $427,500

Panel 3 • Top recipients

RecipientTotalShare*CountDatesDetails
COMMITTEE TO PROTECT PUBLIC SAFETY, SPONSORED BY ACTION FOR SAFETY AND JUSTICE$427,50045.9%1Oct 2024 - Oct 2024
NEWSOM; STOP THE REPUBLICAN RECALL OF GOVERNOR$425,00045.6%1Jun 2021 - Jun 2021
NO RECALL OF JUDGE PERSKY, MAJOR FUNDING BY ELIZABETH SIEGELMAN$49,9005.4%1May 2018 - May 2018
ELEVATE CALIFORNIA ACTION COMMITTTEE$20,0002.1%1May 2025 - May 2025
ELEVATE CALIFORNIA PAC$9,8001.1%1May 2025 - May 2025
Showing 5 of 5

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

RunwayDonorsMARK W. HEISING

Donor header

MARK W. HEISING

Individual · ATHERTON, CA · MEDLEY PARTNERS MANAGEMENT LLC · PARTNER

$932,200 total given · Largest contribution $427,500

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

$932,200

First seen May 16, 2018 · Last activity May 7, 2025

Contribution footprint

5 recipients

5 contributions · Avg $186,440

Concentration

Top recipient 45.9%

Top 3 96.8%

Top 10 100%

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

Spike markers

  1. 1May 2018 · NO RECALL OF JUDGE PERSKY, MAJOR FUNDING BY ELIZABETH SIEGELMAN · $49,900
  2. 2Jun 2021 · NEWSOM; STOP THE REPUBLICAN RECALL OF GOVERNOR · $425,000
  3. 3Oct 2024 · COMMITTEE TO PROTECT PUBLIC SAFETY, SPONSORED BY ACTION FOR SAFETY AND JUSTICE · $427,500

Panel 3 • Top recipients

RecipientTotalShare*CountDatesDetails
COMMITTEE TO PROTECT PUBLIC SAFETY, SPONSORED BY ACTION FOR SAFETY AND JUSTICE$427,50045.9%1Oct 2024 - Oct 2024
NEWSOM; STOP THE REPUBLICAN RECALL OF GOVERNOR$425,00045.6%1Jun 2021 - Jun 2021
NO RECALL OF JUDGE PERSKY, MAJOR FUNDING BY ELIZABETH SIEGELMAN$49,9005.4%1May 2018 - May 2018
ELEVATE CALIFORNIA ACTION COMMITTTEE$20,0002.1%1May 2025 - May 2025
ELEVATE CALIFORNIA PAC$9,8001.1%1May 2025 - May 2025
Showing 5 of 5

* 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