SEC ownership of Prometheus Biosciences, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001718852.

Comparable stake leader

Cedars Sinai Intellectual Property Co

Disclosed value leader

Cedars Sinai Intellectual Property Co

Comparable rows

0/3

Latest evidence

08 Mar 2023

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
08 Mar 2023
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001718852
Issuer location
San Diego, CA

Ownership snapshot

Top shareholders of Prometheus Biosciences, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Cedars Sinai Intellectual...
Disclosed value leader
Cedars Sinai Intellectual...
Comparable rows
0/3
Latest evidence
08 Mar 2023
3/4/5 Highest disclosed value: $433,802,731 3 rows are not safely comparable across share classes.

Quick read

Cedars Sinai Intellectual Property Co has the largest disclosed position value at $433.8M.

0 of 3 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Cedars Sinai Intellectual Property Co's linked filing trail.
Disclosed position value Top 1
Cedars Sinai Intellectual Propert... $433.8M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-3 of 3 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Cedars Sinai Intellectual Property Co
3/4/5
10%+ Owner
class O/S missing
$433,802,731
4,001,132 shares
08 Mar 2023
Allison Luo
3/4/5
Chief Medical Officer
class O/S missing
113,677 shares
14 Nov 2021
Timothy K. Andrews
3/4/5
General Counsel
class O/S missing
54,132 shares
14 Nov 2021
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 03 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-13 of 13 reporting-owner rows connected to Prometheus Biosciences, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
13
Largest Forms 3/4/5 holder
Cedars Sinai Intellectual Property Co
Net 12M change
$0
Latest report
16 Jun 2023
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Cedars Sinai Intellectual Property Co 10%+ Owner $433,802,731 Mixed 08 Mar 2023
Fred Hassan Director Mixed 16 Jun 2023
Helen C. Adams Director Mixed 16 Jun 2023
Timothy K. Andrews General Counsel Mixed 14 Nov 2021
Keith W. Marshall Chief Financial Officer Mixed 16 Jun 2023
Allison Luo Chief Medical Officer Mixed 14 Nov 2021
Joseph C. Papa Director Mixed 16 Jun 2023
Mark C. McKenna Chairman, President and CEO, Director Mixed 16 Jun 2023
Mark Stenhouse Chief Operating Officer Mixed 16 Jun 2023
James Laur Director Mixed 16 Jun 2023
Martin Hendrix Director Mixed 16 Jun 2023
Judith L. Swain Director Mixed 16 Jun 2023
Szela Mary T. Director Mixed 16 Jun 2023

Recent insider transactions for Prometheus Biosciences, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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