InsiderTrades

ATTO Attovia Therapeutics, Inc.

Nasdaq · SEC CIK 2058707 · EDGAR

Bought, last 12 months
$52.37M
7 purchases by 5 insiders
Sold, last 12 months
$4.50M
2 sales by 1 insiders
Filings on record
14
since 2026-08-06, latest 2026-08-28 17:38
Buying vs selling by month open-market trades, last 24 months
BoughtSold

Most active insiders, 12 months

InsiderTitleBoughtSold
WALSH COLINDir $20.57M$4.50M
Redmile Group, LLC10% $10.20M—
Frazier Life Sciences XI, L.P.10% $10.00M—
venBio Global Strategic Fund IV, L.P.10% $6.50M—
Sanofi10% $5.10M—
Deep Track Biotechnology Master Fund, Ltd.10% ——

Transactions 16

Type
Reset
X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DMAI 2026-08-28 17:38 2026-08-05+ ATTO WALSH COLIN Dir P - Purchase $17.58 +585.0K 3.02M +24% +$10.29M
DMAI 2026-08-28 17:38 2026-08-05 ATTO WALSH COLIN Dir S - Sale $21.28 -105.8K 0 -100% -$2.25M
DMAI 2026-08-28 17:38 2026-08-06 ATTO WALSH COLIN Dir C - Cnv Deriv $0.00 +2.44M 2.52M +2,865% $0
DMI 2026-08-13 21:52 2026-08-05+ ATTO WALSH COLIN Dir P - Purchase $17.58 +585.0K 3.02M +24% +$10.29M
DMI 2026-08-13 21:52 2026-08-05 ATTO WALSH COLIN Dir S - Sale $21.28 -105.8K 0 -100% -$2.25M
DMI 2026-08-13 21:52 2026-08-06 ATTO WALSH COLIN Dir C - Cnv Deriv $0.00 +2.44M 2.52M +2,865% $0
D 2026-08-10 16:30 2026-08-06 ATTO Deep Track Biotechnology Master Fund, Ltd. 10% C - Cnv Deriv — +1.96M 1.96M New —
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
DI 2026-08-07 21:47 2026-08-06 ATTO Redmile Group, LLC 10% C - Cnv Deriv — +782.9K 782.9K New —
D 2026-08-07 21:47 2026-08-06 ATTO Redmile Group, LLC 10% P - Purchase $17.00 +200.0K 982.9K +26% +$3.40M
DI 2026-08-07 21:47 2026-08-06 ATTO Redmile Group, LLC 10% P - Purchase $17.00 +400.0K 1.18M +51% +$6.80M
DI 2026-08-07 15:45 2026-08-06 ATTO Sanofi 10% C - Cnv Deriv — +782.9K 782.9K New —
DI 2026-08-07 15:45 2026-08-06 ATTO Sanofi 10% P - Purchase $17.00 +300.0K 1.08M +38% +$5.10M
DM 2026-08-06 17:35 2026-08-06 ATTO Frazier Life Sciences XI, L.P. 10% C - Cnv Deriv — +5.49M 5.57M +7,287% —
D 2026-08-06 17:35 2026-08-06 ATTO Frazier Life Sciences XI, L.P. 10% P - Purchase $17.00 +588.2K 6.15M +11% +$10.00M

Purchase Sale Sale after option exercise All abbreviations