Form 4 for ATTO Attovia Therapeutics, Inc.
Accepted 2026-08-10 16:12:09 ET · period of report 2026-08-06 · accession 0000905148-26-003548 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-10 16:12 | 2026-08-06 | ATTO | venBio Global Strategic Fund IV, L.P. | 10% | C - Cnv Deriv | — | +3.80M | 3.80M | New | — |
| D | 2026-08-10 16:12 | 2026-08-06 | ATTO | venBio Global Strategic Fund IV, L.P. | 10% | P - Purchase | $17.00 | +382.4K | 4.18M | +10% | +$6.50M |
| DM | 2026-08-10 16:12 | 2026-08-06 | ATTO | venBio Global Strategic Fund IV, L.P. | 10% | C - Cnv Deriv | $0.00 | -35.29M | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-06 | C | A | 2,311,870 | — | 2,311,870 | D | — | — | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 2 | Common | Common Stock | 2026-08-06 | C | A | 821,998 | — | 3,133,868 | D | — | — | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 3 | Common | Common Stock | 2026-08-06 | C | A | 665,147 | — | 3,799,015 | D | — | — | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 4 | Common | Common Stock | 2026-08-06 | P | A | 382,352 | $17.00 | 4,181,367 | D | — | — | (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 5 | Derivative | Series A Preferred Stock | 2026-08-06 | C | D | 21,477,273 | $0.00 | 0 | D | — · — to — | 2,311,870 Common Stock | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 6 | Derivative | Series B Preferred Stock | 2026-08-06 | C | D | 7,636,362 | $0.00 | 0 | D | — · — to — | 821,998 Common Stock | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |
| 7 | Derivative | Series C Preferred Stock | 2026-08-06 | C | D | 6,179,219 | $0.00 | 0 | D | — · — to — | 665,147 Common Stock | (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F1) In connection with the completion of the Issuer's initial public offering of its common stock ("Common Stock"), each share of Series A Preferred Stock, Series B Preferred Stock, and Series C Preferred Stock (collectively, the "Preferred Stock") automatically converted into shares of Common Stock on a one-for-one basis, as adjusted to reflect the 1-for-9.29 reverse stock split of the Common Stock effected on July 29, 2026, without payment of further consideration. (F2) These securities are held directly by venBio Global Strategic Fund IV, L.P. ("Fund IV"). venBio Global Strategic GP IV, LLC ("General Partner IV") is the sole general partner of Fund IV. Richard Gaster, Corey Goodman, and Aaron Royston are the members of General Partner IV, and, in reliance on the "rule of three," each disclaims beneficial ownership over the securities held directly by Fund IV. |