Sigma Planning Corp

SEC CIK: 0001449126
Latest filing: Aug 7, 2026

SEC filings (opens in a new tab)

ATOS holding history

Atossa Therapeutics, Inc. 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.

ATOS overview All 13F holders of ATOS Full Q2 2026 holdings

Shares (Q1 2026): 0; Sold out in Q1 2026
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q3 2025

Holdings of ATOS by Sigma Planning Corp, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2026	0	$0	0.0%	−1,600−100.0%	Sold outConverted for a 1-for-15 split	Holders
Q4 2025	24,000	$14.2K	<0.1%	00.0%	Unchanged	Holders
Q3 2025	24,000	$20.8K	<0.1%	+24,000	New	Holders