STOCK TITAN

Q32 Bio (NASDAQ: QTTB) amends Form 4, granting 10,826 options

(Neutral)
(Neutral)
Form Type
4/A

Rhea-AI Filing Summary

An amended Form 4 for Q32 Bio Inc. reports that director and 10% owner Diyong Xu received a grant of 10,826 stock options on June 12, 2026 at a $12.64 exercise price, vesting by June 12, 2027 or the next annual meeting, with benefits required to be passed through to specified OrbiMed investment entities.

Positive

  • None.

Negative

  • None.
Insider Xu Diyong
Role Director, 10% Owner
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) F1, F2, F3 10,826 $0.00 $0.00
Holdings After Transaction: Stock Option (Right to Buy) — 10,826 shares (Direct)
Footnotes (3)
  1. F1. This Form 4 amendment is being filed solely to amend the Form 4 filed on June 16, 2026 to correct the number of options awarded to the Reporting Person on June 12, 2026.
  2. F2. The shares underlying this option shall vest and become exercisable in full upon the earlier of (i) June 12, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service on such vesting date.
  3. F3. Pursuant to an agreement with OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC, the Reporting Person is obligated to transfer any securities issued under any such stock options or other awards, or the economic benefit thereof, to OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC, which will in turn ensure that such securities or economic benefits are provided to OrbiMed Private Investments VII, LP.
Stock options granted 10,826 options Grant of stock options to Diyong Xu on June 12, 2026
Exercise price $12.64 per share Conversion or exercise price of the stock option grant
Options outstanding after grant 10,826 options Total derivative securities held directly after the reported grant
Option expiration date June 11, 2036 Expiration date of the granted stock options
Vesting date June 12, 2027 Options vest on the earlier of this date or the next annual meeting
Stock Option (Right to Buy) financial
"Reported security titled "Stock Option (Right to Buy)" for common stock"
exercise price financial
"Conversion or exercise price of the option is $12.6400 per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
vesting financial
"Shares underlying this option shall vest and become exercisable in full"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
economic benefit financial
"transfer any securities issued or the economic benefit thereof to OrbiMed"
annual meeting of stockholders regulatory
"vest upon June 12, 2027 or the date of the Issuer's next annual meeting"

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

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FAQ

What insider transaction did Q32 Bio Inc. (QTTB) report for Diyong Xu?

Q32 Bio reported that Diyong Xu, a director and 10% owner, received a grant of 10,826 stock options. These options relate to common stock and represent a new derivative position awarded on June 12, 2026, as shown in the amended insider report.

How many stock options were granted to Diyong Xu in QTTB and at what exercise price?

Diyong Xu was granted 10,826 stock options linked to Q32 Bio common stock at a $12.64 exercise price per share. The options were awarded on June 12, 2026, with no cash paid at grant, reflecting a compensation-related award.

When do Diyong Xu's Q32 Bio (QTTB) options vest and expire?

The options vest in full on the earlier of June 12, 2027 or Q32 Bio’s next annual meeting of stockholders. They are subject to his continued service through that vesting date and carry an expiration date of June 11, 2036.

Why was this Q32 Bio (QTTB) Form 4 amended?

The Form 4 was amended solely to correct the number of options awarded to Diyong Xu on June 12, 2026. The amendment clarifies the accurate grant size of 10,826 options and does not introduce new transactions beyond that correction.

What is the relationship between Diyong Xu's QTTB options and OrbiMed entities?

Under an agreement, Diyong Xu must transfer any securities or economic benefits from these options to OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC. Those entities will then ensure the benefits are provided to OrbiMed Private Investments VII, LP.

Were the Q32 Bio (QTTB) insider transactions made under a Rule 10b5-1 plan?

The report indicates the transaction was not made pursuant to a Rule 10b5-1 trading plan, as the relevant checkbox is not selected. No footnote describes a pre-arranged trading plan in connection with this option grant.
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*
Xu Diyong

(Last)(First)(Middle)
Q32 BIO INC.
830 WINTER STREET

(Street)
WALTHAM MASSACHUSETTS 02451

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Q32 Bio Inc. [ QTTB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/12/2026
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)
06/16/2026
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
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
Stock Option (Right to Buy)$12.6406/12/2026A10,826(1) (2)06/11/2036Common Stock10,826(1)$010,826(1)D(3)
Explanation of Responses:
1. This Form 4 amendment is being filed solely to amend the Form 4 filed on June 16, 2026 to correct the number of options awarded to the Reporting Person on June 12, 2026.
2. The shares underlying this option shall vest and become exercisable in full upon the earlier of (i) June 12, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service on such vesting date.
3. Pursuant to an agreement with OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC, the Reporting Person is obligated to transfer any securities issued under any such stock options or other awards, or the economic benefit thereof, to OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC, which will in turn ensure that such securities or economic benefits are provided to OrbiMed Private Investments VII, LP.
/s/ Eric Bell, Attorney-in-Fact07/21/2026
** 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)