GAMMA Investing LLC: ACT position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMMA Investing LLC on ACT, newest first. How the timeline and the estimate are built.
GAMMA Investing LLC held 2,289 ACT shares at 2026-09-30 per its 13F-HR filed 2026-10-08.
the latest 13F is the newest step
- period ended2026-09-3013F 2,289 sharesChange vs previous 13F +312 shares
<0.01% of the 13F portfolio, value $99,022.
13F-HR 0002010235-26-000007 filed by GAMMA Investing LLC
Accepted , ingested - period ended2026-06-3013F 1,977 sharesChange vs previous 13F +78 shares
<0.01% of the 13F portfolio, value $90,369.
13F-HR 0002010235-26-000005 filed by GAMMA Investing 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 1,899 sharesChange vs previous 13F +441 shares
<0.01% of the 13F portfolio, value $77,498.
13F-HR 0002010235-26-000003 filed by GAMMA Investing 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 1,458 sharesChange vs previous 13F +286 shares
<0.01% of the 13F portfolio, value $57,795.
13F-HR 0002010235-26-000001 filed by GAMMA Investing 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 1,172 sharesChange vs previous 13F +322 shares
<0.01% of the 13F portfolio, value $44,934.
13F-HR 0002010235-25-000009 filed by GAMMA Investing 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 850 sharesChange vs previous 13F +344 shares
<0.01% of the 13F portfolio, value $31,578.
13F-HR 0002010235-25-000007 filed by GAMMA Investing 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/A 506 sharesChange vs previous 13F +171 shares
<0.01% of the 13F portfolio, value $17,584.
13F-HR/A 0002010235-25-000006 filed by GAMMA Investing 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 335 sharesChange vs previous 13F not available
<0.01% of the 13F portfolio, value $10,847.
13F-HR 0002010235-25-000001 filed by GAMMA Investing LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).