United States Biotechnology & Medical Research

Attovia Therapeutics Inc (ATTO)

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Attovia Therapeutics Inc witnessed significant insider activity recently, totaling 56 transactions. Buying dominated with $52.4 million in acquisitions by entities like Sanofi and Frazier Life Sciences, contrasted against $6.7 million in sales. This follows a September 2026 results financiers miss, while the stock price maintained a modest 1.1% gain over the past quarter.
Ticker: ATTO Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
No insider activity signals detected

Insider trades have not triggered unusual activity signals for this company.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
WALSH COLIN Non-Executive Director
Transaction date
Purchase
Price
17.11
Quantity 83,082 +11.7%
Value US$339,772
2.5
GOLDMAN SACHS GROUP INC Former 10% Owner
Transaction date
Purchase
Price
439.98
Quantity 42,650 -11.0%
Value US$3,443,852
3.2
Redmile Group, LLC Large shareholder
Transaction date
Purchase
Price
17.00
Quantity 400,000 +51.1%
Value US$6,800,000
3.2
Redmile Group, LLC Large shareholder
Transaction date
Purchase
Price
17.00
Quantity 200,000 +25.5%
Value US$3,400,000
2.4
Sanofi Large shareholder
Transaction date
Purchase
Price
17.00
Quantity 300,000 +38.3%
Value US$5,100,000
2.5
GOLDMAN SACHS GROUP INC Former 10% Owner Large shareholder
Transaction date
Proposed sale
Price
21.00
Quantity 105,807
Value US$2,221,947
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.04
Quantity 76,418 -100.0%
Value US$1,607,835
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.61
Quantity 6,763 -10.8%
Value US$146,148
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.99
Quantity 100 -0.2%
Value US$2,199
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.19
Quantity 1,163 -1.8%
Value US$25,807
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.07
Quantity 700 -1.1%
Value US$15,449
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.05
Quantity 200 -0.3%
Value US$4,410
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.78
Quantity 443 -0.7%
Value US$9,649
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
20.84
Quantity 300 -0.5%
Value US$6,252
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.05
Quantity 1,040 -1.6%
Value US$22,932
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.84
Quantity 1,180 -1.7%
Value US$25,771
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.02
Quantity 400 -0.6%
Value US$8,808
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.03
Quantity 6,970 -9.3%
Value US$153,549
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.02
Quantity 672 -0.9%
Value US$14,797
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.97
Quantity 753 -1.0%
Value US$16,543
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.11
Quantity 100 -0.1%
Value US$2,211
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.55
Quantity 480 -0.6%
Value US$10,344
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.10
Quantity 200 -0.3%
Value US$4,420
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.02
Quantity 3,402 -4.2%
Value US$74,912
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.06
Quantity 1,556 -1.9%
Value US$34,325
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.05
Quantity 200 -0.2%
Value US$4,410
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.03
Quantity 1,332 -1.6%
Value US$29,344
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
21.87
Quantity 447 -0.5%
Value US$9,776
WALSH COLIN Non-Executive Director
Transaction date
Sale
Price
22.03
Quantity 988 -1.2%
Value US$21,766
WALSH COLIN Non-Executive Director
Transaction date
Purchase
Price
21.00
Quantity 85,000 +inf%
Value US$1,785,000
2.5
GOLDMAN SACHS GROUP INC Former 10% Owner
Transaction date
Sale
Price
21.04
Quantity 76,418 -100.0%
Value US$1,607,835
2.5
GOLDMAN SACHS GROUP INC Former 10% Owner
Transaction date
Sale
Price
21.61
Quantity 6,763 -10.8%
Value US$146,148
2.5
GOLDMAN SACHS GROUP INC Former 10% Owner
Transaction date
Purchase
Price
21.00
Quantity 85,000 +inf%
Value US$1,785,000
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-13 2026-08-06 B Purchase
WALSH COLIN
Non-Executive Director
83,082 +11.7%
17.11
US$339,772 		83,082 +11.7% 17.11 US$339,772
2026-08-13 2026-08-06 B Purchase
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
42,650 -11.0%
439.98
US$3,443,852 		42,650 -11.0% 439.98 US$3,443,852
2026-08-10 2026-08-06 B Purchase
venBio Global Strategic Fund IV, L.P.
Large shareholder
62,435 +0.7%
465.80
US$893,282 		62,435 +0.7% 465.80 US$893,282
2026-08-07 2026-08-06 B Purchase
3.2
Redmile Group, LLC
Large shareholder
400,000 +51.1%
17.00
US$6,800,000 		400,000 +51.1% 17.00 US$6,800,000
2026-08-07 2026-08-06 B Purchase
3.2
Redmile Group, LLC
Large shareholder
200,000 +25.5%
17.00
US$3,400,000 		200,000 +25.5% 17.00 US$3,400,000
2026-08-07 2026-08-06 B Purchase
2.4
Sanofi
Large shareholder
300,000 +38.3%
17.00
US$5,100,000 		300,000 +38.3% 17.00 US$5,100,000
2026-08-06 2026-08-06 B Purchase
Frazier Life Sciences XI, L.P.
Large shareholder
588,235 +10.6%
17.00
US$9,999,995 		588,235 +10.6% 17.00 US$9,999,995
2026-08-28 2026-08-05 PrS Proposed sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner

Large shareholder
105,807
21.00
US$2,221,947 		105,807 21.00 US$2,221,947
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
76,418 -100.0%
21.04
US$1,607,835 		76,418 -100.0% 21.04 US$1,607,835
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
6,763 -10.8%
21.61
US$146,148 		6,763 -10.8% 21.61 US$146,148
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
100 -0.2%
21.99
US$2,199 		100 -0.2% 21.99 US$2,199
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
1,163 -1.8%
22.19
US$25,807 		1,163 -1.8% 22.19 US$25,807
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
700 -1.1%
22.07
US$15,449 		700 -1.1% 22.07 US$15,449
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
200 -0.3%
22.05
US$4,410 		200 -0.3% 22.05 US$4,410
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
443 -0.7%
21.78
US$9,649 		443 -0.7% 21.78 US$9,649
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
300 -0.5%
20.84
US$6,252 		300 -0.5% 20.84 US$6,252
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
1,040 -1.6%
22.05
US$22,932 		1,040 -1.6% 22.05 US$22,932
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
1,180 -1.7%
21.84
US$25,771 		1,180 -1.7% 21.84 US$25,771
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
400 -0.6%
22.02
US$8,808 		400 -0.6% 22.02 US$8,808
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
6,970 -9.3%
22.03
US$153,549 		6,970 -9.3% 22.03 US$153,549
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
672 -0.9%
22.02
US$14,797 		672 -0.9% 22.02 US$14,797
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
753 -1.0%
21.97
US$16,543 		753 -1.0% 21.97 US$16,543
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
100 -0.1%
22.11
US$2,211 		100 -0.1% 22.11 US$2,211
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
480 -0.6%
21.55
US$10,344 		480 -0.6% 21.55 US$10,344
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
200 -0.3%
22.10
US$4,420 		200 -0.3% 22.10 US$4,420
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
3,402 -4.2%
22.02
US$74,912 		3,402 -4.2% 22.02 US$74,912
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
1,556 -1.9%
22.06
US$34,325 		1,556 -1.9% 22.06 US$34,325
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
200 -0.2%
22.05
US$4,410 		200 -0.2% 22.05 US$4,410
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
1,332 -1.6%
22.03
US$29,344 		1,332 -1.6% 22.03 US$29,344
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
447 -0.5%
21.87
US$9,776 		447 -0.5% 21.87 US$9,776
2026-08-13 2026-08-05 S Sale
WALSH COLIN
Non-Executive Director
988 -1.2%
22.03
US$21,766 		988 -1.2% 22.03 US$21,766
2026-08-13 2026-08-05 B Purchase
WALSH COLIN
Non-Executive Director
85,000 +inf%
21.00
US$1,785,000 		85,000 +inf% 21.00 US$1,785,000
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
76,418 -100.0%
21.04
US$1,607,835 		76,418 -100.0% 21.04 US$1,607,835
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
6,763 -10.8%
21.61
US$146,148 		6,763 -10.8% 21.61 US$146,148
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
100 -0.2%
21.99
US$2,199 		100 -0.2% 21.99 US$2,199
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
1,163 -1.8%
22.19
US$25,807 		1,163 -1.8% 22.19 US$25,807
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
700 -1.1%
22.07
US$15,449 		700 -1.1% 22.07 US$15,449
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
200 -0.3%
22.05
US$4,410 		200 -0.3% 22.05 US$4,410
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
443 -0.7%
21.78
US$9,649 		443 -0.7% 21.78 US$9,649
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
300 -0.5%
20.84
US$6,252 		300 -0.5% 20.84 US$6,252
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
1,040 -1.6%
22.05
US$22,932 		1,040 -1.6% 22.05 US$22,932
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
1,180 -1.7%
21.84
US$25,771 		1,180 -1.7% 21.84 US$25,771
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
400 -0.6%
22.02
US$8,808 		400 -0.6% 22.02 US$8,808
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
6,970 -9.3%
22.03
US$153,549 		6,970 -9.3% 22.03 US$153,549
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
672 -0.9%
22.02
US$14,797 		672 -0.9% 22.02 US$14,797
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
753 -1.0%
21.97
US$16,543 		753 -1.0% 21.97 US$16,543
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
100 -0.1%
22.11
US$2,211 		100 -0.1% 22.11 US$2,211
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
480 -0.6%
21.55
US$10,344 		480 -0.6% 21.55 US$10,344
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
200 -0.3%
22.10
US$4,420 		200 -0.3% 22.10 US$4,420
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
3,402 -4.2%
22.02
US$74,912 		3,402 -4.2% 22.02 US$74,912
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
1,556 -1.9%
22.06
US$34,325 		1,556 -1.9% 22.06 US$34,325
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
200 -0.2%
22.05
US$4,410 		200 -0.2% 22.05 US$4,410
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
1,332 -1.6%
22.03
US$29,344 		1,332 -1.6% 22.03 US$29,344
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
447 -0.5%
21.87
US$9,776 		447 -0.5% 21.87 US$9,776
2026-08-13 2026-08-05 S Sale
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
988 -1.2%
22.03
US$21,766 		988 -1.2% 22.03 US$21,766
2026-08-13 2026-08-05 B Purchase
2.5
GOLDMAN SACHS GROUP INC

Former 10% Owner
85,000 +inf%
21.00
US$1,785,000 		85,000 +inf% 21.00 US$1,785,000
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