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Electra director converts 255K preferred shares

Electra Therapeutics, Inc. (ETRA) reported that director Nancy Stagliano converted all of her Series A Convertible Preferred Stock into Common Stock in connection with the closing of the company’s initial public offering.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Electra Therapeutics, Inc. (ETRA) reported that director Nancy Stagliano converted all of her Series A Convertible Preferred Stock into Common Stock in connection with the closing of the company’s initial public offering. On September 21, 2026, 255,635 preferred shares automatically converted into 255,635 Common Shares on a 1-for-1 basis without further consideration, leaving her with 255,635 Common Shares held directly and no remaining Preferred Stock.

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Insider Stagliano Nancy
Role Director
Type Security Shares Price Value
Conversion Series A Convertible Preferred Stock F1 255,635 -- --
Conversion Common Stock F1 255,635 -- --
Holdings After Transaction: Series A Convertible Preferred Stock — 0 contracts (Direct); Common Stock — 255,635 shares (Direct)
Footnotes (1)
  1. F1. 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.
Preferred Shares Converted 255,635 shares Series A Convertible Preferred Stock converted on September 21, 2026
Common Shares Received 255,635 shares Common Stock received upon conversion of Series A Convertible Preferred Stock
Common Shares Held After Transaction 255,635 shares Director’s direct Common Stock holdings following the IPO-related conversion
Preferred Shares Held After Transaction 0 shares Series A Convertible Preferred Stock position after automatic IPO conversion
Conversion Date September 21, 2026 Date of automatic conversion tied to the issuer’s initial public offering
Series A Convertible Preferred Stock financial
"Each share of Series A Convertible Preferred Stock (the "Preferred Stock") converted automatically"
Series A convertible preferred stock is a class of shares sold in an early funding round that gives investors a mix of protection and upside: it pays a priority claim over common shares if the company is sold or closes, but can be converted into ordinary shares to share in future growth. Think of it like a hybrid between a safer stake and a ticket to ownership; it matters to investors because it affects who controls the company, how future gains are split, and how much their investment is protected from downside.
initial public offering financial
"converted automatically into 1 share of Common Stock upon the closing of the Issuer's initial public offering"
An initial public offering (IPO) is when a private company first sells its shares to the public and becomes a stock-listed company. It matters because it allows the company to raise money from a wide range of investors, helping it grow, while giving early shareholders a way to sell some of their ownership.
Common Stock financial
"converted automatically into 1 share of Common Stock upon the closing"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
automatic conversion financial
"Each share of Series A Convertible Preferred Stock ... converted automatically into 1 share"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Electra Therapeutics (ETRA) report for Nancy Stagliano?

Electra Therapeutics reported that director Nancy Stagliano converted 255,635 shares of Series A Convertible Preferred Stock into 255,635 shares of Common Stock on September 21, 2026, in connection with the closing of the company’s initial public offering.

How many Electra Therapeutics (ETRA) common shares does Nancy Stagliano hold after this Form 4?

After the reported transactions, Nancy Stagliano holds 255,635 shares of Common Stock of Electra Therapeutics directly. Her holdings of Series A Convertible Preferred Stock are reported as 0 shares following the automatic IPO-related conversion.

What happened to Nancy Stagliano’s Series A Convertible Preferred Stock in ETRA?

Each share of Nancy Stagliano’s Series A Convertible Preferred Stock automatically converted into 1 share of Common Stock upon the closing of Electra Therapeutics’ initial public offering, without payment of further consideration, resulting in 0 preferred shares remaining.

Was the Electra Therapeutics (ETRA) insider transaction under a Rule 10b5-1 trading plan?

No. The Form 4 indicates that no Rule 10b5-1 trading plan is reported for these transactions. The conversion occurred automatically upon the closing of Electra Therapeutics’ initial public offering, as described in the footnote.

What is the conversion rate of Electra Therapeutics’ Series A Convertible Preferred Stock reported here?

The filing states that each share of Series A Convertible Preferred Stock converted automatically into 1 share of Common Stock upon the closing of Electra Therapeutics’ initial public offering, and that the Preferred Stock had no expiration date before conversion.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Stagliano Nancy

(Last)(First)(Middle)
C/O ELECTRA THERAPEUTICS, INC.
230 E GRAND AVENUE, SUITE S-100

(Street)
SOUTH SAN FRANCISCO CALIFORNIA 94080

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Electra Therapeutics, Inc. [ ETRA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/21/2026C255,635A(1)255,635D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Series A Convertible Preferred Stock(1)09/21/2026C255,635 (1) (1)Common Stock255,635(1)0D
Explanation of Responses:
1. 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.
/s/ Jamie Kitano, Attorney-in-Fact09/21/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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