Filer Snapshot

COLUMN GROUP III GP, LP

CIK 0001790965. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

3

Latest filing

18 May 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13D/G stake for SRZN. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

—

Populates from the latest parsed 13F information table.

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13D/G large stake

SRZN

31 Mar 2026 · 29% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13D/A filed on 18 May 2026 for CIK 0001790965.

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Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

Forms 3/4/5 positions$45M

Reporting-owner positions with enough filing detail to estimate value.

Forms 3/4/5 position value

3/4/5
$45M

Estimated from parsed Forms 3/4/5 when filings include enough share and price data.

Source: Forms 3/4/5Confidence: Estimated when price data is available

Largest linked holdings

Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 records.

SRZN

Largest active 13D stakes

Active large-stake positions disclosed in parsed Schedule 13D filings.

SRZN
How to read these SEC ownership signals
  • Read each filing family separately: Form 13F, Schedules 13D/G, and Forms 3/4/5 answer different SEC disclosure questions and should not be blended into one ownership total.
  • Use 13F values for visible U.S.-listed equity portfolios, 13D/G rows for large beneficial-owner stakes, and Forms 3/4/5 rows for reporting-owner positions and transactions.
  • Open the linked research path when you need the filing, CIK, issuer, CUSIP, date, or source trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
1700 Owens Street, Suite 500, San Francisco, CA, 94158
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Incorporated in
DE
Fiscal year end
31 December

Filer intelligence

What SEC filings say about COLUMN GROUP III GP, LP

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

  • 1 recent 13D/G stake row found; top row is SRZN at 29% ownership.
  • Forms 3/4/5 show insider context for SRZN worth $45M.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes 1 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 2 rows

Officer, director, and 10% owner holdings or transactions.

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13D/G large-stake context

SRZN

31 Mar 2026 · Common Stock, $0.0001 par value per share

29%
Issuer page 13D/G history

Forms 3/4/5 insider context

SRZN

15 Jan 2026 · 10% owner

$45M
Issuer page Owner page

TNYA

24 Feb 2026 · 10% owner

$0
Issuer page Owner page

Latest update

What changed recently for COLUMN GROUP III GP, LP

New filing available

Latest Schedule 13D/G period: 31 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

18 May 2026

Page type

Filer profile

Latest period

31 Mar 2026

Schedule 13D/G context is visible from filings filed on 18 May 2026.

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Benchmark Context

Benchmark context for this company

COLUMN GROUP III GP, LP has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest Schedule 13D/G period: 31 Mar 2026. That gives you a fresh baseline before you compare this company with peers.

  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
  • Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

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SEC filing record

CIK 0001790965 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
3
First seen
28 Mar 2025
Latest filing
18 May 2026
Entity
Company

Observed form types

SCHEDULE 13D/A

CIK-linked evidence first

COLUMN GROUP III GP, LP SEC filings COLUMN GROUP III GP, LP 13D/G history COLUMN GROUP III GP, LP owner filings Open SEC filing index

Latest Filings

Showing the latest 3 of 3 SEC filings for COLUMN GROUP III GP, LP.

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
18 May 2026
Reporting date
Not listed
SEC evidence
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Next action
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
22 Jan 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
28 Mar 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
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