RAMBUS INC DEL

Ticker: RMBS CUSIP: 750917106 Class: EQTY

SBI Securities Co., Ltd.'s Holding History (CIK: 0001851815)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,607 Value ($000) $148 Avg Close $98.40 Range $82.51 - $114.55

Q3 2025

Shares 1,325 Value ($000) $138 Avg Close $77.09 Range $61.16 - $109.15

Q2 2025

Shares 46 Value ($000) $3 Avg Close $53.58 Range $40.12 - $64.90

Q1 2025

Shares 441 Value ($000) $23 Avg Close $58.74 Range $50.01 - $69.15

Q4 2024

Shares 128 Value ($000) $7 Avg Close $50.98 Range $39.56 - $60.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,607	$148	$98.40	$82.51 - $114.55
Q3 2025	1,325	$138	$77.09	$61.16 - $109.15
Q2 2025	46	$3	$53.58	$40.12 - $64.90
Q1 2025	441	$23	$58.74	$50.01 - $69.15
Q4 2024	128	$7	$50.98	$39.56 - $60.84