Key facts
- This page summarizes Fu Tao's Form 3/A - Amendment filing for Attovia Therapeutics, Inc. (ATTO).
- 0 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 08 Oct 2026, 19:58.
Fu Tao - 04 Aug 2026 Form 3/A - Amendment Insider Report for Attovia Therapeutics, Inc. (ATTO)
- Reporting relationship
- President and CEO, Director
- Issuer ticker
- ATTO
- Reported as of
- 04 Aug 2026
- Net transaction value
- $0
- SEC form
- 3/A - Amendment
- Accepted by SEC
- 08 Oct 2026, 19:58:36 UTC
- Original report date
- 04 Aug 2026
- Prior SEC filing
- 29 Oct 2021
- Source filing
- View source filing
- Reporting owner signature
- /s/ Steven Chan, Attorney-in-Fact for Tao Fu
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Filing notes and source
Key filing fact
Fu Tao filed Form 3/A - Amendment for Attovia Therapeutics, Inc. (ATTO) on 08 Oct 2026.
Change
- Previous filing in this sequence was filed on 29 Oct 2021.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3/A - Amendment disclosures.
Reporting Owners (1)
CIK 0001644888
Primary reporting owner
Fu Tao
- Relationship
- President and CEO, Director
- Address
- C/O ATTOVIA THERAPEUTICS, INC., 1091 INDUSTRIAL ROAD, SUITE 310, SAN CARLOS
- Signature
- /s/ Steven Chan, Attorney-in-Fact for Tao Fu
- Signature date
- 08 Oct 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ATTO
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 87,843
- Date
- 04 Aug 2026
- Ownership
- Direct
ATTO
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 99,181
- Date
- 04 Aug 2026
- Ownership
- By Trust
- Footnotes
- F1
ATTO
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 116,103
- Date
- 04 Aug 2026
- Ownership
- By Trust
- Footnotes
- F2
ATTO
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 245,425
- Date
- 04 Aug 2026
- Ownership
- By Trust
- Footnotes
- F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ATTO
holding
Derivative
Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 04 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 23,437
- Exercise price
- $1.58
- Footnotes
- F4
ATTO
holding
Derivative
Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 04 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 409,709
- Exercise price
- $3.53
- Footnotes
- F5
ATTO
holding
Derivative
Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 04 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 370,290
- Exercise price
- $4.92
- Footnotes
- F6
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 6 footnotes
Footnote F1
These shares are held by the TF 2025 Annuity Trust, of which the reporting person is the trustee.
Footnote F2
These shares are held by the TF 2026 Annuity Trust, of which the reporting person is the trustee.
Footnote F3
These shares are held by the Hai Fu Revocable Trust, of which the reporting person and Hai Fu are trustees.
Footnote 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.
Footnote 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.
Footnote 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.
SEC 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.