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Livermore
Livermore
ZHEN

Sigma Planning Corp

SEC CIK
0001449126
Latest filing
Aug 7, 2026

AM holding history

Antero Midstream Corp in every 13F filed by Sigma Planning Corp, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AM overviewAll 13F holders of AMFull Q2 2026 holdings

Shares (Q2 2026)
21,184
Value
$481.9K
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of AM by Sigma Planning Corp, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202621,184$481.9K<0.1%−2,946−12.2%ReducedHolders
Q1 202624,130$550.2K<0.1%−395−1.6%ReducedHolders
Q4 202524,525$436.3K<0.1%+120.0%AddedHolders
Q3 202524,513$476.5K<0.1%+56+0.2%AddedHolders
Q2 202524,457$463.5K<0.1%−3,177−11.5%ReducedHolders
Q1 202527,634$497.4K<0.1%+326+1.2%AddedHolders
Q4 202427,308$412.1K<0.1%−3,494−11.3%ReducedHolders
Q3 202430,802$463.6K<0.1%−11,683−27.5%ReducedHolders
Q2 202442,485$626.2K<0.1%+110.0%AddedHolders
Q1 202442,474$597.2K<0.1%+24,638+138.1%AddedHolders
Q4 202317,836$223.5K<0.1%−38,736−68.5%ReducedHolders
Q3 202356,572$677.7K<0.1%−2,067−3.5%ReducedHolders
Q2 202358,639$680.2K<0.1%+13,906+31.1%AddedHolders
Q1 202344,733$469.3K<0.1%−114−0.3%ReducedHolders
Q4 202244,847$483.9K<0.1%−466−1.0%ReducedHolders
Q3 202245,313$416.0K<0.1%+12,230+37.0%AddedHolders
Q2 202233,083$299.0K<0.1%+1,760+5.6%AddedHolders
Q1 202231,323$340.0K<0.1%+207+0.7%AddedHolders
Q4 202131,116$301.0K<0.1%−4,910−13.6%ReducedHolders
Q3 202136,026$375.0K<0.1%+2,151+6.3%AddedHolders
Q2 202133,875$352.0K<0.1%+180+0.5%AddedHolders
Q1 202133,695$304.0K<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.