Filer Snapshot

Ph.D. Jonathan M. Rothberg

CIK 0001076352. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

29

Latest filing

17 Mar 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13D/G stake for BFLY. 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

BFLY

13 Mar 2026 · 100% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13D/A filed on 17 Mar 2026 for CIK 0001076352.

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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$24.32M

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

Forms 3/4/5 position value

3/4/5
$24.32M

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.

BFLY QSI

Largest active 13D stakes

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

BFLY QSI
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
C/O Butterfly Network, Inc., 530 Old Whitfield St., Guilford, CT, 06437

Filer intelligence

What SEC filings say about Ph.D. Jonathan M. Rothberg

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 BFLY at 100% ownership.
  • Forms 3/4/5 show insider context for BFLY worth $13.71M.

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

BFLY

13 Mar 2026 · Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share

100%
Issuer page 13D/G history

QSI

09 Sep 2025 · Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share

100%
Issuer page 13D/G history

Forms 3/4/5 insider context

BFLY

06 Jan 2026 · 10% owner

$13.71M
Issuer page Owner page

QSI

18 May 2026 · 10% owner

$10.61M
Issuer page Owner page

HYPR

22 May 2026 · 10% owner

Issuer page Owner page

Latest update

What changed recently for Ph.D. Jonathan M. Rothberg

Ownership report updated

Latest ownership report period: 22 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

22 May 2026

Page type

Ownership filings

Latest period

22 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 22 May 2026.

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SEC filing record

CIK 0001076352 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
29
First seen
14 Jun 2021
Latest filing
17 Mar 2026
Entity
Individual

Observed form types

3 4 4/A SCHEDULE 13D/A

CIK-linked evidence first

Ph.D. Jonathan M. Rothberg SEC filings Ph.D. Jonathan M. Rothberg 13D/G history Ph.D. Jonathan M. Rothberg owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 29 SEC filings for Ph.D. Jonathan M. Rothberg.

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SCHEDULE 13D/A

SCHEDULE 13D/A filing

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

SCHEDULE 13D/A filing

Filing date
17 Dec 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
01 Dec 2025
Reporting date
Not listed
SEC evidence
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4

4 filing

Filing date
05 Nov 2025
Reporting date
03 Nov 2025
SEC evidence
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

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

SCHEDULE 13D/A filing

Filing date
07 Mar 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
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SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date
31 Dec 2024
Reporting date
Not listed
SEC evidence
Open document Open filing
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4

4 filing

Filing date
22 Jun 2023
Reporting date
20 Jun 2023
SEC evidence
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4

4 filing

Filing date
12 Jun 2023
Reporting date
09 Jun 2023
SEC evidence
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4

4 filing

Filing date
16 May 2023
Reporting date
12 May 2023
SEC evidence
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4

4 filing

Filing date
09 Mar 2023
Reporting date
08 Mar 2023
SEC evidence
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4

4 filing

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