William John Sempolinski

SEC CIK: 0002149024
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

RTX holding history

RTX Corp in every 13F filed by William John Sempolinski, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q2 2026): 7,790
Value: $1.48M
% of portfolio: 0.6%
Quarters held: 3; Since Q4 2025

Holdings of RTX by William John Sempolinski, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	7,790	$1.48M	0.6%	+438+6.0%	Added	Holders
Q1 2026	7,352	$1.42M	0.7%	−81−1.1%	Reduced	Holders
Q4 2025	7,433	$1.36M	0.7%	–	No prior filing	Holders