ETRA: Dong Quehuong (Kathy) discloses securities transactions

By AlphaYouPublished Sep 21, 2026Form 4

Stocks in this disclosure

Reported activity

Dong Quehuong (Kathy)

Reporting filer

Dong Quehuong (Kathy) reported Conversion in Electra Therapeutics, Inc.: 455484 units of Common Stock, dated 2026-09-21. The full Form 4 contains 2 transaction entries.

Disclosed: Sep 21, 2026

Reported details

2 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	Dong Quehuong (Kathy)	2026-09-21	C	Conversion	455484	Not stated (see footnotes)	455,484	0 days	Filed terms security Title: Common Stock transaction Date: 2026-09-21 transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Shares: 455484 id: F1 id: F2 transaction Acquired Disposed Code: A shares Owned Following Transaction: 455484 direct Or Indirect Ownership: D nature Of Ownership:
Series A Convertible Preferred Stock (derivative)	Dong Quehuong (Kathy)	2026-09-21	C	Conversion	455484	Not stated (see footnotes)	0	0 days	Filed terms security Title: Series A Convertible Preferred Stock id: F2 transaction Date: 2026-09-21 transaction Form Type: 4 transaction Code: C equity Swap Involved: 0 transaction Shares: 455484 id: F1 id: F2 transaction Acquired Disposed Code: D id: F2 id: F2 underlying Security Title: Common Stock underlying Security Shares: 455484 id: F1 shares Owned Following Transaction: 0 direct Or Indirect Ownership: D nature Of Ownership:

Common Stock

Owner: Dong Quehuong (Kathy)
Date: 2026-09-21
Code: C
Action: Conversion
Quantity: 455484
Price: Not stated (see footnotes)
Following holdings: 455,484
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-21
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Shares: 455484
id: F1
id: F2
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 455484
direct Or Indirect Ownership: D
nature Of Ownership:

Series A Convertible Preferred Stock (derivative)

Owner: Dong Quehuong (Kathy)
Date: 2026-09-21
Code: C
Action: Conversion
Quantity: 455484
Price: Not stated (see footnotes)
Following holdings: 0
Reporting delay: 0 days
Filed terms and references: Filed terms
security Title: Series A Convertible Preferred Stock
id: F2
transaction Date: 2026-09-21
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Shares: 455484
id: F1
id: F2
transaction Acquired Disposed Code: D
id: F2
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 455484
id: F1
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D
nature Of Ownership:

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
Dong Quehuong (Kathy): President & CEO, Director.
F1: 73,147 of the shares ("Restricted Shares") shall be subject to vesting as follows: 1/13th of the Restricted Shares shall vest monthly commencing from September 16, 2026.
F2: Each share of Series A Convertible Preferred Stock (the "Preferred Stock") converted automatically into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. Share numbers give effect to such conversion. The Preferred Stock had no expiration date.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Common Stock

Dong Quehuong (Kathy)

2026-09-21

Conversion

455484

Not stated (see footnotes)

455,484

0 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-21
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Shares: 455484
id: F1
id: F2
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 455484
direct Or Indirect Ownership: D
nature Of Ownership:

Series A Convertible Preferred Stock (derivative)

Dong Quehuong (Kathy)

2026-09-21

Conversion

455484

Not stated (see footnotes)

0 days

Filed terms

security Title: Series A Convertible Preferred Stock
id: F2
transaction Date: 2026-09-21
transaction Form Type: 4
transaction Code: C
equity Swap Involved: 0
transaction Shares: 455484
id: F1
id: F2
transaction Acquired Disposed Code: D
id: F2
id: F2
underlying Security Title: Common Stock
underlying Security Shares: 455484
id: F1
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D
nature Of Ownership:

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

Dong Quehuong (Kathy): President & CEO, Director.

F1: 73,147 of the shares ("Restricted Shares") shall be subject to vesting as follows: 1/13th of the Restricted Shares shall vest monthly commencing from September 16, 2026.

F2: Each share of Series A Convertible Preferred Stock (the "Preferred Stock") converted automatically into 1 share of Common Stock upon the closing of the Issuer's initial public offering without payment of further consideration. Share numbers give effect to such conversion. The Preferred Stock had no expiration date.