Filer Snapshot

Brian K. McCarthy

CIK 0002020217. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

47

Latest filing

03 Feb 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: Forms 3/4/5 owner position for RBRK. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

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Populates from the latest parsed 13F information table.

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13D/G large stake

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No recent parsed 13D/G stake row for this CIK.

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Source: SEC Forms 3/4/5

4 filed on 03 Feb 2026 for CIK 0002020217.

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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$74.85M

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

Forms 3/4/5 position value

3/4/5
$74.85M

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

Largest linked holdings

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

RBRK
How to read these SEC ownership signals
  • Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different SEC disclosure questions.
  • Open the linked research path when you need the filing, CIK, issuer, or CUSIP trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
3495 Deer Creek Road, Palo Alto, CA, 94304

Filer intelligence

What SEC filings say about Brian K. McCarthy

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

  • Forms 3/4/5 show insider context for RBRK worth $74.85M.

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 No rows yet

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 1 rows

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

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Forms 3/4/5 insider context

RBRK

31 Jan 2026 · Pres.,Global Sales & Field Ops

$74.85M
Issuer page Owner page

Latest update

What changed recently for Brian K. McCarthy

Ownership report updated

Latest ownership report period: 31 Jan 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

03 Feb 2026

Page type

Ownership filings

Latest period

31 Jan 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 03 Feb 2026.

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SEC filing record

CIK 0002020217 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
47
First seen
24 Apr 2024
Latest filing
03 Feb 2026
Entity
Individual

Observed form types

4 144 3

CIK-linked evidence first

Brian K. McCarthy SEC filings Brian K. McCarthy owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 47 SEC filings for Brian K. McCarthy.

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4 File 001-42028

4 filing

Filing date
03 Feb 2026
Reporting date
31 Jan 2026
SEC evidence
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4 File 001-42028

4 filing

Filing date
13 Jan 2026
Reporting date
12 Jan 2026
SEC evidence
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4 File 001-42028

4 filing

Filing date
18 Dec 2025
Reporting date
16 Dec 2025
SEC evidence
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144

144 filing

Filing date
16 Dec 2025
Reporting date
Not listed
SEC evidence
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4 File 001-42028

4 filing

Filing date
10 Dec 2025
Reporting date
10 Dec 2025
SEC evidence
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4 File 001-42028

4 filing

Filing date
12 Nov 2025
Reporting date
10 Nov 2025
SEC evidence
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4 File 001-42028

4 filing

Filing date
14 Oct 2025
Reporting date
13 Oct 2025
SEC evidence
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144

144 filing

Filing date
14 Oct 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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4 File 001-42028

4 filing

Filing date
01 Oct 2025
Reporting date
29 Sep 2025
SEC evidence
Open document Open filing
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4 File 001-42028

4 filing

Filing date
18 Sep 2025
Reporting date
16 Sep 2025
SEC evidence
Open document Open filing
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144

144 filing

Filing date
16 Sep 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
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4 File 001-42028

4 filing

Filing date
04 Sep 2025
Reporting date
02 Sep 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
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