Mattern Wealth Management LLC

SEC CIK: 0001802376
Latest filing: Jul 23, 2026

SEC filings (opens in a new tab)

BLDP holding history

Ballard Power Systems Inc. in every 13F filed by Mattern Wealth Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

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

Shares (Q4 2021): 0; Sold out in Q4 2021
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q1 2021

Holdings of BLDP by Mattern Wealth Management LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q4 2021	0	$0	0.0%	−14,300−100.0%	Sold out	Holders
Q3 2021	14,300	$201.0K	0.1%	00.0%	Unchanged	Holders
Q2 2021	14,300	$217.0K	0.1%	+3,900+37.5%	Added	Holders
Q1 2021	10,400	$253.0K	0.1%	–	–	Holders

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