Attovia Therapeutics CEO Tao Fu holds 87,843 shares

Each option vests 25% on its specified one-year anniversary, then an additional 1/48th of its underlying shares monthly over three years, subject to continued service.

Rhea-AI Filing Summary

Attovia Therapeutics, Inc. amended Tao Fu’s Form 3, identifying him as President and CEO and a director, and states that no beneficial-ownership changes are reported. As of August 4, 2026, Fu directly held 87,843 common shares and held three direct stock-option positions covering 23,437 shares at $1.5793, 409,709 shares at $3.5302, and 370,290 shares at $4.9237. The options expire August 16, 2033, May 8, 2034, and May 17, 2035, respectively. The filing also lists common stock held through the TF 2025 Annuity Trust, TF 2026 Annuity Trust, and Hai Fu Revocable Trust.

Insider Trade Summary

7 transactions reported

Mixed 7 txns

Insider Fu Tao

Role President and CEO

Type	Security	Shares	Price	Value
holding	Stock Option (Right to Buy) F4	--	--	--
holding	Stock Option (Right to Buy) F5	--	--	--
holding	Stock Option (Right to Buy) F6	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock F1	--	--	--
holding	Common Stock F2	--	--	--
holding	Common Stock F3	--	--	--

Holdings After Transaction: Stock Option (Right to Buy) — 803,436 contracts (Direct); Common Stock — 87,843 shares (Direct); Common Stock — 460,709 shares (Indirect, By Trust)

Footnotes (6)

1. F1. These shares are held by the TF 2025 Annuity Trust, of which the reporting person is the trustee.
2. F2. These shares are held by the TF 2026 Annuity Trust, of which the reporting person is the trustee.
3. F3. These shares are held by the Hai Fu Revocable Trust, of which the reporting person and Hai Fu are trustees.
4. F4. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of June 2, 2023, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.
5. F5. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of May 9, 2024, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.
6. F6. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of May 18, 2025, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.

Key Figures

Direct common shares: 87,843 shares Underlying common shares: 23,437 shares Exercise price: $1.5793 per share +4 more

7 metrics

Direct common shares 87,843 shares Reported as of August 4, 2026

Underlying common shares 23,437 shares Direct stock option; exercise price $1.5793; expires August 16, 2033

Exercise price $1.5793 per share Direct stock option covering 23,437 underlying common shares

Underlying common shares 409,709 shares Direct stock option; exercise price $3.5302; expires May 8, 2034

Exercise price $3.5302 per share Direct stock option covering 409,709 underlying common shares

Underlying common shares 370,290 shares Direct stock option; exercise price $4.9237; expires May 17, 2035

Exercise price $4.9237 per share Direct stock option covering 370,290 underlying common shares

Key Terms

Stock Option (Right to Buy), vesting, underlying shares

3 terms

Stock Option (Right to Buy) financial

"Stock Option (Right to Buy)"

vesting financial

"Vest with respect to 25% of the shares"

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.

underlying shares financial

"shares of common stock underlying the stock option"

FAQ

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

How many ATTO shares does CEO Tao Fu report?

Tao Fu reported direct ownership of 87,843 common shares as of August 4, 2026. He also reported direct stock options covering 23,437, 409,709, and 370,290 underlying common shares, at exercise prices of $1.5793, $3.5302, and $4.9237, respectively.

How do Tao Fu’s ATTO stock options vest?

Each option provides for vesting of 25% of the underlying common shares on the one-year anniversary of June 2, 2023, May 9, 2024, or May 18, 2025, as applicable, and an additional 1/48th of the total underlying shares in equal monthly installments over three years, subject to continued service through each vesting date.

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

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Available on EDGAR 10/08/2026 - 07:59 PM EDT Accepted by SEC EDGAR 10/08/2026 - 07:58 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED 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^*

Fu Tao

(Last) (First) (Middle)

C/O ATTOVIA THERAPEUTICS, INC.

1091 INDUSTRIAL ROAD, SUITE 310

(Street)

SAN CARLOS CALIFORNIA 94070

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
08/04/2026

3. Issuer Name and Ticker or Trading Symbol
Attovia Therapeutics, Inc. [ ATTO ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)
08/04/2026

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

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

X	Form filed by One Reporting Person
	Form 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 Stock	87,843	D
Common Stock	99,181	I	By Trust(1)
Common Stock	116,103	I	By Trust(2)
Common Stock	245,425	I	By Trust(3)

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 Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	(4)	08/16/2033	Common Stock	23,437	$1.5793	D
Stock Option (Right to Buy)	(5)	05/08/2034	Common Stock	409,709	$3.5302	D
Stock Option (Right to Buy)	(6)	05/17/2035	Common Stock	370,290	$4.9237	D

Explanation of Responses:

1. These shares are held by the TF 2025 Annuity Trust, of which the reporting person is the trustee.

2. These shares are held by the TF 2026 Annuity Trust, of which the reporting person is the trustee.

3. These shares are held by the Hai Fu Revocable Trust, of which the reporting person and Hai Fu are trustees.

4. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of June 2, 2023, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.

5. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of May 9, 2024, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.

6. Vest with respect to 25% of the shares of common stock underlying the stock option on the one year anniversary of May 18, 2025, and an additional 1/48th of the total shares underlying the stock option vest in equal monthly installments over three years, subject to continued service through such date.

Remarks:

This Form 3 amendment amends the Form 3 filed on August 4, 2026, which reported the Reporting Person's beneficial ownership using the Issuer's CIK number. This Form 3 amendment has been filed under the Reporting Person's CIK and reflects him as the Reporting Person. This filing amends and replaces the original filing in its entirety. No changes have been made or are being reported with respect to the Reporting Person's beneficial ownership of the Issuer's securities.

	/s/ Steven Chan, Attorney-in-Fact for Tao Fu	10/08/2026
	** 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 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)