Ballard Power Systems Inc.BLDP

3 13D/G filings 1 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings

3 SCHEDULE 13D/A

Distinct filers

single filer

Insiders (365d)

0 buys · 0 sales

Latest short DTC

4.58

as of 2026-04-30

Filed	Form	Filer	Stake	Shares
2026-05-19	SCHEDULE 13D/A	Weichai Power Hong Kong International Development Co., Ltd	10.32%	31,102,826	view →
2026-05-15	SCHEDULE 13D/A	Weichai Power Hong Kong International Development Co., Ltd	11.61%	34,999,826	view →
2026-05-13	SCHEDULE 13D/A	Weichai Power Hong Kong International Development Co., Ltd	—	39,252,826	view →

Settlement	Short Interest	Days to Cover	% Δ vs prior
2026-04-30	21,027,098	4.58	+1.4%
2026-04-15	20,730,810	7.11	+0.8%
2026-03-31	20,570,804	5.84	-15.7%
2026-03-13	24,390,355	5.56	+2.9%
2026-02-27	23,703,882	12.91	-3.2%
2026-02-13	24,497,367	10.38	+3.2%
2026-01-30	23,734,858	6.97	+11.2%
2026-01-15	21,336,801	6.48	+1.9%
2025-12-31	20,938,321	7.20	-4.6%
2025-12-15	21,956,428	5.79	+6.1%

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