Shell Asset Management Co

SEC CIK: 0001211028
Latest filing: Nov 7, 2025

SEC filings (opens in a new tab)

ADTN holding history

ADTRAN Holdings, Inc. in every 13F filed by Shell Asset Management Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ADTN overview All 13F holders of ADTN Full Q3 2025 holdings

Shares (Q1 2023): 0; Sold out in Q1 2023
Value: $0
% of portfolio: 0.0%
Quarters held: 2; Since Q3 2022

Holdings of ADTN by Shell Asset Management Co, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2023	0	$0	0.0%	−13,632−100.0%	Sold out	Holders
Q4 2022	13,632	$256.0K	<0.1%	−2,599−16.0%	Reduced	Holders
Q3 2022	16,231	$318.0K	<0.1%	+16,231	New	Holders