Filer Snapshot

Charles Cherington

CIK 0001448698. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

18

Latest filing

17 Feb 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13D/G stake for ERNA. 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

ERNA

10 Feb 2026 · 35% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13D/A filed on 17 Feb 2026 for CIK 0001448698.

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Ownership signals 1 signal
Ownership signals

SEC value by filing type

Compare filing types separately; 13F, 13D/G, and Forms 3/4/5 are different evidence sources.

Forms 3/4/5 positions$3.9M

Reporting-owner positions with enough data to estimate value.

Estimated Forms 3/4/5 position value

$3.9M

Estimated only when owner filings include enough share and price data.

Largest linked SEC positions

Largest issuer positions found across parsed 13F, 13D/G, and Forms 3/4/5 data.

ERNA CMRA

Schedule 13D positions

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

ERNA
How to read these SEC values
  • Read each filing type on its own: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different questions.
  • Open the linked research paths when you need to verify the exact SEC filing behind a value.
Identity 1 identity field
Business address
One Bow Street, Cambridge, MA, 02138

Filer intelligence

What SEC filings say about Charles Cherington

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

  • 2 recent 13D/G stake rows found; top row is ERNA at 35% ownership.
  • Forms 3/4/5 show insider context for ERNA worth $3.39M.

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 2 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 3 rows

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

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13D/G large-stake context

ERNA

10 Feb 2026 · Common Stock, par value $0.005 per share

35%
Issuer page 13D/G history

ERNA

09 Jun 2025 · Common Stock, par value $0.005 per share

38%
Issuer page 13D/G history

Forms 3/4/5 insider context

ERNA

10 Feb 2026 · 10% owner

$3.39M
Issuer page Owner page

CMRA

27 Dec 2023 · 10% owner

$508.2K
Issuer page Owner page

BRD

23 Nov 2021

Issuer page Owner page

Latest update

What changed recently for Charles Cherington

Ownership report updated

Latest ownership report period: 10 Feb 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

17 Feb 2026

Page type

Ownership filings

Latest period

10 Feb 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 17 Feb 2026.

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SEC filing record

CIK 0001448698 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
18
First seen
21 Jun 2021
Latest filing
17 Feb 2026
Entity
Individual

Observed form types

3 4 SCHEDULE 13D/A

CIK-linked evidence first

Charles Cherington SEC filings Charles Cherington 13D/G history Charles Cherington owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 18 SEC filings for Charles Cherington.

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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
17 Feb 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
11 Jun 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
04 Apr 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
05 Mar 2025
Reporting date
Not listed
SEC evidence
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4

4 filing

Filing date
20 Dec 2023
Reporting date
14 Dec 2023
SEC evidence
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4

4 filing

Filing date
25 Aug 2023
Reporting date
13 Jul 2023
SEC evidence
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4

4 filing

Filing date
06 Jan 2023
Reporting date
04 Jan 2023
SEC evidence
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4

4 filing

Filing date
06 Dec 2022
Reporting date
02 Dec 2022
SEC evidence
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4

4 filing

Filing date
24 Oct 2022
Reporting date
20 Oct 2022
SEC evidence
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4

4 filing

Filing date
18 Oct 2022
Reporting date
14 Oct 2022
SEC evidence
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4

4 filing

Filing date
14 Oct 2022
Reporting date
13 Oct 2022
SEC evidence
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4

4 filing

Filing date
30 Sep 2022
Reporting date
29 Sep 2022
SEC evidence
Open document Open filing
Next action
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