Q32 Bio scientific chief sells 917 shares

Q: How many QTTB shares did Chief Scientific Officer Shelia M. Violette sell, and at what price?

Chief Scientific Officer Shelia M. Violette sold 917 shares on October 6, 2026, at a weighted average price of $8.3197 per share. Multiple transactions were priced from $8.07 to $8.32. The sales were automatic to cover tax withholding on vesting performance-based restricted stock units, and no Rule 10b5-1 plan is reported.

Q: How many QTTB shares did Shelia M. Violette hold after the sale?

Her direct holdings after the sale were 126,854 shares. The filing also lists 36,277 shares held by Violette Holdings LLC. Violette is the LLC's manager and disclaims beneficial ownership of those shares except to the extent of her pecuniary interest, if any.

The sale was automatic and required to cover tax withholding as performance-based restricted stock units vested.

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Form Type

Rhea-AI Filing Summary

Q32 Bio Inc. (QTTB) Chief Scientific Officer Shelia M. Violette sold 917 shares of common stock on October 6, 2026, at a weighted average price of $8.3197 per share. The shares were required to be sold to cover tax withholding obligations tied to vesting performance-based restricted stock units; the sales were automatic and not at her discretion. Her direct holdings after the sale were 126,854 shares. Violette Holdings LLC held 36,277 shares; Violette is its manager and disclaims beneficial ownership except to the extent of her pecuniary interest, if any.

Insider Trade Summary

Net Seller: 917 shares

Net Sell 2 txns

Insider Violette Shelia M.

Role Chief Scientific Officer

Sold 917 shs ($8K)

Type	Security	Shares	Price	Value
Sale	Common Stock ^{F1, F2}	917	$8.3197	$8K
holding	Common Stock ^F3	--	--	--

Holdings After Transaction: Common Stock — 126,854 shares (Direct); Common Stock — 36,277 shares (Indirect, By Violette Holdings LLC)

Footnotes (3)

F1. Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of performance-based restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.
F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $8.07 to $8.32. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, on request, full information regarding the number of shares sold at each separate price within the range set forth above.
F3. Shares held by Violette Holdings LLC ("Violette Holdings"). The Reporting Person is a manager of Violette Holdings and disclaims beneficial ownership of these shares except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that she is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

Key Figures

Common shares sold: 917 shares Weighted average sale price: $8.3197 per share Direct shares following transaction: 126,854 shares +1 more

4 metrics

Common shares sold 917 shares October 6, 2026

Weighted average sale price $8.3197 per share Shares sold on October 6, 2026

Direct shares following transaction 126,854 shares Shelia M. Violette's reported direct holdings after the sale

Shares held by Violette Holdings LLC 36,277 shares Reported holding on October 6, 2026

Key Terms

performance-based restricted stock units, tax withholding obligations, weighted average price, pecuniary interest

4 terms

performance-based restricted stock units financial

"vesting of performance-based restricted stock units"

Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.

tax withholding obligations financial

"cover tax withholding obligations"

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

pecuniary interest regulatory

"except to the extent of her pecuniary interest therein"

FAQ

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

How many QTTB shares did Chief Scientific Officer Shelia M. Violette sell, and at what price?

Chief Scientific Officer Shelia M. Violette sold 917 shares on October 6, 2026, at a weighted average price of $8.3197 per share. Multiple transactions were priced from $8.07 to $8.32. The sales were automatic to cover tax withholding on vesting performance-based restricted stock units, and no Rule 10b5-1 plan is reported.

How many QTTB shares did Shelia M. Violette hold after the sale?

Her direct holdings after the sale were 126,854 shares. The filing also lists 36,277 shares held by Violette Holdings LLC. Violette is the LLC's manager and disclaims beneficial ownership of those shares except to the extent of her pecuniary interest, if any.

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

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Available on EDGAR 10/14/2026 - 05:30 PM EDT Accepted by SEC EDGAR 10/14/2026 - 05:30 PM EDT

SEC Form 4

FORM 4

UNITED 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^*

Violette Shelia M.

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Scientific Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/06/2026		S⁽¹⁾		917	D	$8.3197⁽²⁾	126,854	D
Common Stock								36,277	I	By Violette Holdings LLC⁽³⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of performance-based restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $8.07 to $8.32. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, on request, full information regarding the number of shares sold at each separate price within the range set forth above.

3. Shares held by Violette Holdings LLC ("Violette Holdings"). The Reporting Person is a manager of Violette Holdings and disclaims beneficial ownership of these shares except to the extent of her pecuniary interest therein, if any, and this report shall not be deemed an admission that she is the beneficial owner of such shares for purposes of Section 16 of the Exchange Act or for any other purpose.

	/s/ Eric Bell, Attorney-in-Fact	10/14/2026
	** Signature of Reporting Person	Date
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)

Source: View Original Filing on SEC EDGAR