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Emerald Bioventures details major Galera Therapeutics (GRTX) equity stake

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Galera Therapeutics, Inc. reported initial insider holdings for Emerald Bioventures, LLC and Timothy Opler as 10% owners. Emerald directly holds 40,216,160 shares of Common Stock and 20,813.818619 shares of Series B Non-Voting Convertible Preferred Stock. Each Series B share is convertible, at the board’s discretion, into 1,000 shares of Common Stock, totaling 20,813,818.6 underlying Common shares, and has no expiration date. Opler is Emerald’s managing member and may be deemed to beneficially own the securities held by Emerald.

Positive

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Negative

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Insider Emerald Bioventures, LLC, Opler Timothy
Role null | null
Type Security Shares Price Value
holding Series B Preferred Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Series B Preferred Stock — 20,813,818.6 shares (Direct, null); Common Stock — 40,216,160 shares (Direct, null)
Footnotes (1)
  1. This Form 3 is jointly filed by and on behalf of each of Emerald Bioventures, LLC ("Emerald") and Timothy Opler ("Mr. Opler"). Emerald is the record and direct beneficial owner of the securities reported herein. Timothy Opler is the managing member of Emerald and may be deemed to beneficially own securities owned by Emerald. Represents 20,813.8186192892 shares of Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") of the Issuer. On February 12, 2026, the Issuer filed a Certificate of Amendment (the "Amendment") to the Certificate of Designation of Preferences, Rights, and Limitations of Series B Non-Voting Convertible Preferred Stock. The Amendment provided that, in the sole discretion of the Issuer's board of directors, the Issuer may elect to convert, in whole or in part, outstanding shares of Series B Preferred Stock into a number of shares of the Issuer's Common Stock ("Common Stock") calculated based on the Conversion Ratio (defined as 1,000 shares of Common Stock issuable upon the conversion of each share of Series B Preferred Stock). The shares of Series B Preferred Stock have no expiration date.
Common Stock held 40,216,160 shares Directly owned by Emerald Bioventures as of Form 3
Series B Preferred held 20,813.818619 shares Series B Non-Voting Convertible Preferred Stock held by Emerald
Conversion Ratio 1,000 Common shares per Series B share Defined in Certificate of Amendment filed February 12, 2026
Underlying Common shares 20,813,818.6 shares Common Stock issuable upon conversion of Emerald’s Series B Preferred
Series B exercise price $0.0000 per share Conversion or exercise price for Series B Preferred Stock
Series B Non-Voting Convertible Preferred Stock financial
"Represents 20,813.8186192892 shares of Series B Non-Voting Convertible Preferred Stock"
A Series B non-voting convertible preferred stock is a class of company shares that gives holders financial priority—such as fixed dividends and first claim on assets if the company is sold—while not granting voting rights. It can be converted into regular common shares under set conditions, which matters to investors because conversion can increase upside participation but also dilute existing owners; the preference reduces downside risk like a safety buffer.
Conversion Ratio financial
"calculated based on the Conversion Ratio (defined as 1,000 shares of Common Stock"
The conversion ratio is the number of common shares an investor receives when a convertible security (like a bond or preferred share) or an exchangeable instrument is turned into ordinary stock. It matters because it tells investors how much ownership or dilution will occur — similar to knowing how many slices you get when you trade in a coupon — and directly affects the value you get from the convertible and the company’s future share count.
beneficial owner financial
"Emerald is the record and direct beneficial owner of the securities reported herein"
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
ten percent owner financial
"is_ten_percent_owner": 1"
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Emerald Bioventures, LLC

(Last)(First)(Middle)
555 MADISON AVENUE, SUITE 11D

(Street)
NEW YORK NEW YORK 10022

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
04/07/2026
3. Issuer Name and Ticker or Trading Symbol
Galera Therapeutics, Inc. [ GRTX ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock40,216,160D(1)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Series B Preferred Stock (2) (2)Common Stock20,813,818.6(2)D(1)
1. Name and Address of Reporting Person*
Emerald Bioventures, LLC

(Last)(First)(Middle)
555 MADISON AVENUE, SUITE 11D

(Street)
NEW YORK NEW YORK 10022

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
Opler Timothy

(Last)(First)(Middle)
555 MADISON AVENUE, SUITE 11D

(Street)
NEW YORK NEW YORK 10022

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
Explanation of Responses:
1. This Form 3 is jointly filed by and on behalf of each of Emerald Bioventures, LLC ("Emerald") and Timothy Opler ("Mr. Opler"). Emerald is the record and direct beneficial owner of the securities reported herein. Timothy Opler is the managing member of Emerald and may be deemed to beneficially own securities owned by Emerald.
2. Represents 20,813.8186192892 shares of Series B Non-Voting Convertible Preferred Stock ("Series B Preferred Stock") of the Issuer. On February 12, 2026, the Issuer filed a Certificate of Amendment (the "Amendment") to the Certificate of Designation of Preferences, Rights, and Limitations of Series B Non-Voting Convertible Preferred Stock. The Amendment provided that, in the sole discretion of the Issuer's board of directors, the Issuer may elect to convert, in whole or in part, outstanding shares of Series B Preferred Stock into a number of shares of the Issuer's Common Stock ("Common Stock") calculated based on the Conversion Ratio (defined as 1,000 shares of Common Stock issuable upon the conversion of each share of Series B Preferred Stock). The shares of Series B Preferred Stock have no expiration date.
Emerald Bioventures, LLC, By: /s/ Timothy Opler, Managing Member05/04/2026
/s/ Timothy Opler05/04/2026
** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What insider position does Emerald Bioventures hold in Galera Therapeutics (GRTX)?

Emerald Bioventures directly holds 40,216,160 shares of Galera Therapeutics Common Stock. It also owns 20,813.818619 shares of Series B Non-Voting Convertible Preferred Stock, which are convertible into 20,813,818.6 Common shares, giving Emerald a substantial equity stake in the company.

What is the conversion feature of Galera Therapeutics (GRTX) Series B Preferred Stock?

Each share of Galera’s Series B Non-Voting Convertible Preferred Stock is convertible into 1,000 shares of Common Stock. The issuer’s board of directors may, at its sole discretion, elect to convert outstanding Series B shares into Common Stock based on this Conversion Ratio.

How many Galera Therapeutics (GRTX) Common shares are underlying the Series B Preferred held by Emerald?

Emerald’s 20,813.818619 shares of Series B Non-Voting Convertible Preferred Stock are convertible into 20,813,818.6 shares of Galera Therapeutics Common Stock. This follows the stated Conversion Ratio of 1,000 Common shares for each share of Series B Preferred Stock.

Does the Galera Therapeutics (GRTX) Series B Preferred Stock have an expiration date?

The Series B Non-Voting Convertible Preferred Stock of Galera Therapeutics has no expiration date. This means the preferred shares, and their conversion feature into Common Stock, remain outstanding unless converted, redeemed, or otherwise changed according to the company’s governing documents.