BlackRock Japan raises stake in Keyence Corporation by $1.3bn

BlackRock Japan raised its stake in electronics maker Keyence Corporation by $1.3bn on 15 October, according to an EDINET filing disclosed on 21 October. Shares in Keyence Corporation have risen 2.4 per cent since the transaction date. The disclosure was the largest increase by value submitted to Japanese regulators on 20 and 21 October.

The company also lifted eight other holdings on 15 October, and cut three, in the same reports. BlackRock Japan increased its stake in machinery maker IHI by $9.9mn, with shares in IHI up 4.1 per cent since the change. It raised its stake in electronics maker Mitsubishi Electric by $683.0mn, where shares have gained 0.7 per cent since the transaction.

On 20 and 21 October, 71 filers submitted 154 reports. Those filings covered $3.2bn in stake increases and $2.5bn in reductions. Over the 30 days to 21 October, 421 filers lodged 1,169 reports. These contained 489 increases valued at $15.5bn and 540 reductions valued at $22.6bn, so reductions took 59 per cent of the value.

Correction, 23 October 2026: An earlier version of this column put BlackRock Japan's purchases in Keyence Corporation and IHI at $5.6bn and $706.7mn; the filings show $1.3bn and $9.9mn. It also called the Keyence purchase the largest increase of the past 30 days, counted three of the investor's stake increases where its reports of 21 October show nine, alongside three reductions, and its totals for 20 and 21 October and for the 30 days counted these errors; they are restated from the filings as now recorded.