Filer Snapshot

Bihua Chen

CIK 0001599214. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

57

Latest filing

15 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 BMEA. 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

BMEA

22 Oct 2025 · 1.5% ownership

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Source: SEC Form 13F

13F-NT filed on 15 May 2026 for CIK 0001599214.

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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$323.03M

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

Forms 3/4/5 position value

3/4/5
$323.03M

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.

BBOT DRUG ERAS MLTX HLXC BMEA

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

MLTX
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
C/O Cormorant Asset Management, Lp, 200 Clarendon Street, 50 Th Floor, Boston, MA

Filer intelligence

What SEC filings say about Bihua Chen

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

  • 4 recent 13D/G stake rows found; top row is BMEA at 1.5% ownership.
  • Forms 3/4/5 show insider context for BBOT worth $191.61M.

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 4 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 5 rows

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

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13D/G large-stake context

BMEA

22 Oct 2025 · Common Stock

1.5%
Issuer page 13D/G history

MLTX

30 Sep 2025 · Class A Ordinary Shares

3.1%
Issuer page 13D/G history

HLXB

11 Aug 2025 · Common Stock

23%
Issuer page 13D/G history

HLXB

28 Feb 2025 · Class A ordinary shares, $0.0001 par value per share

32%
Issuer page 13D/G history

Forms 3/4/5 insider context

BBOT

16 Jun 2026 · 10% owner

$191.61M
Issuer page Owner page

DRUG

28 Apr 2026

$85.02M
Issuer page Owner page

ERAS

22 Jun 2023

$17.19M
Issuer page Owner page

MLTX

29 Sep 2025

$13.88M
Issuer page Owner page

Latest update

What changed recently for Bihua Chen

Ownership report updated

Latest ownership report period: 16 Jun 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

18 Jun 2026

Page type

Ownership filings

Latest period

16 Jun 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 18 Jun 2026.

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SEC filing record

CIK 0001599214 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
57
First seen
14 Feb 2014
Latest filing
15 May 2026
Entity
Individual

Observed form types

13F-NT 4 4/A SCHEDULE 13G/A

CIK-linked evidence first

Bihua Chen SEC filings Bihua Chen 13F portfolio Bihua Chen 13D/G history Bihua Chen owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 57 SEC filings for Bihua Chen.

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13F-NT

13F-NT filing

Filing date
15 May 2026
Reporting date
31 Mar 2026
SEC evidence
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13F-NT

13F-NT filing

Filing date
17 Feb 2026
Reporting date
31 Dec 2025
SEC evidence
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4/A

4/A filing

Filing date
28 Jan 2026
Reporting date
26 Jan 2026
SEC evidence
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4

4 filing

Filing date
26 Jan 2026
Reporting date
26 Jan 2026
SEC evidence
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13F-NT

13F-NT filing

Filing date
14 Nov 2025
Reporting date
30 Sep 2025
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
01 Oct 2025
Reporting date
Not listed
SEC evidence
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13F-NT

13F-NT filing

Filing date
14 Aug 2025
Reporting date
30 Jun 2025
SEC evidence
Open document Open filing
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13F-NT

13F-NT filing

Filing date
15 May 2025
Reporting date
31 Mar 2025
SEC evidence
Open document Open filing
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13F-NT

13F-NT filing

Filing date
14 Feb 2025
Reporting date
31 Dec 2024
SEC evidence
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13F-NT

13F-NT filing

Filing date
14 Nov 2024
Reporting date
30 Sep 2024
SEC evidence
Open document Open filing
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13F-NT

13F-NT filing

Filing date
14 Aug 2024
Reporting date
30 Jun 2024
SEC evidence
Open document Open filing
Next action
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13F-NT

13F-NT filing

Filing date
15 May 2024
Reporting date
31 Mar 2024
SEC evidence
Open document Open filing
Next action
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