Circumference Group LLC: AMPL position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Circumference Group LLC on AMPL, newest first. How the timeline and the estimate are built.
Circumference Group LLC held 238,000 AMPL shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 238,000 sharesChange vs previous 13F 0 shares
3.95% of the 13F portfolio, value $1,820,700.
13F-HR 0001420506-26-001805 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 238,000 sharesChange vs previous 13F 0 shares
3.64% of the 13F portfolio, value $1,623,160.
13F-HR 0001420506-26-001158 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 238,000 sharesChange vs previous 13F +20,000 shares
3.07% of the 13F portfolio, value $2,756,040.
13F-HR 0001420506-26-000560 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 218,000 sharesChange vs previous 13F 0 shares
2.74% of the 13F portfolio, value $2,336,960.
13F-HR 0001420506-25-003406 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 218,000 sharesChange vs previous 13F +40,000 shares
2.8% of the 13F portfolio, value $2,703,200.
13F-HR 0001420506-25-002184 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 178,000 sharesChange vs previous 13F 0 shares
2.25% of the 13F portfolio, value $1,813,820.
13F-HR 0001420506-25-001266 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 178,000 sharesChange vs previous 13F 0 shares
1.75% of the 13F portfolio, value $1,877,900.
13F-HR 0001420506-25-000601 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 178,000 sharesChange vs previous 13F not available
1.67% of the 13F portfolio, value $1,596,660.
13F-HR 0001420506-24-002546 filed by Circumference Group LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).