NGK Spark Plug Co., Ltd.
NGKSF- Exchange
- OTC
- SEC CIK
- 0001442655
No open-market purchases or sales by NGK Spark Plug Co., Ltd. insiders were filed in the last 90 days; 1 institution reported holding it in 13F filings for Q2 2026, worth $3.00K in total; no superinvestor holds it.
Holders of 5% or more of NGKSF
Holders whose latest Schedule 13D or 13G filing reports 5% or more of NGK Spark Plug Co., Ltd., largest stake first. The change is against the holder's previous filing.
No holder currently reports owning 5% or more of NGK Spark Plug Co., Ltd. on Schedule 13D or 13G.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
Schedule 13D and 13G filings on NGK Spark Plug Co., Ltd., newest first.
No Schedule 13D or 13G filings on NGK Spark Plug Co., Ltd. are on file.
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell NGK Spark Plug Co., Ltd. shares.
No Form 144 notices for NGK Spark Plug Co., Ltd. are on file.