Boston Partners

SEC CIK: 0001386060
Latest filing: Aug 4, 2026

SEC filings (opens in a new tab)

SIRI holding history

Sirius XM Holdings Inc. in every 13F filed by Boston Partners, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q2 2026): 5,080,806
Value: $150.2M
% of portfolio: 0.1%
Quarters held: 3; Since Q3 2024

Holdings of SIRI by Boston Partners, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	5,080,806	$150.2M	0.1%	+5,080,806	New	Holders
Q1 2025	0	$0	0.0%	−33,620−100.0%	Sold out	Holders
Q4 2024	33,620	$766.5K	<0.1%	+8,239+32.5%	Added	Holders
Q3 2024	25,381	$600.3K	<0.1%	+25,381	New	Holders