Does Two Sigma own RMBS stock?

Yes. As of its Q4 2025 13F, Two Sigma holds 46,700 shares of RMBS (Rambus), worth $4.3M.

How many shares of RMBS does Two Sigma own?

As of its Q4 2025 13F, Two Sigma holds 46,700 shares of RMBS (Rambus).

As of its Q4 2025 13F, Two Sigma's RMBS position is worth $4.3M.

In Q4 2025, Two Sigma increased its RMBS position by 6,600 shares (+16.5%).

Two Sigma already held RMBS in its Q4 2018 13F, the earliest on record, and has listed it in 29 quarterly 13F filings.

29 quarters

Position history for Two Sigma Advisers, LP's holdings in Rambus, Inc.

Current Value

$4.3M

Current Shares

46,700

Total Value Change

-$647,737

Total Shares Change

-597,185

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2025-Q4 Latest	Increased	46,700	+16.5%	$4.3M	0.0%	$91.89	31
2025-Q3	Decreased	40,100	-69.0%	$4.2M	0.0%	$104.20	0
2025-Q2	Decreased	129,300	-56.0%	$8.3M	0.0%	$64.02	0
2025-Q1	Decreased	293,800	-32.5%	$15.2M	0.0%	$51.78	0
2024-Q4	Decreased	435,300	-22.7%	$23M	0.1%	$52.86	0
2024-Q3	Increased	562,900	+172.3%	$23.8M	0.1%	$42.22	46
2024-Q2	Increased	206,700	+250.9%	$12.1M	0.0%	$58.76	45
2024-Q1	Increased	58,900	+18.0%	$3.6M	0.0%	$61.81	31
2023-Q4	Decreased	49,900	-14.3%	$3.4M	0.0%	$68.25	0
2023-Q3	Increased	58,200	+154.2%	$3.2M	0.0%	$55.79	43
2023-Q2	Decreased	22,900	-73.9%	$1.5M	0.0%	$64.17	0
2023-Q1	Decreased	87,785	-56.2%	$4.5M	0.0%	$51.26	0
2022-Q4	Decreased	200,485	-20.9%	$7.2M	0.0%	$35.82	0
2022-Q3	Decreased	253,585	-22.4%	$6.4M	0.0%	$25.42	0
2022-Q2	Decreased	326,685	-16.5%	$7M	0.0%	$21.49	0
2022-Q1	Decreased	391,385	-25.5%	$12.5M	0.0%	$31.89	0
2021-Q4	Decreased	525,085	-21.9%	$15.4M	0.0%	$29.39	0
2021-Q3	Decreased	672,685	-7.7%	$14.9M	0.0%	$22.20	0
2021-Q2	Increased	728,785	+10.0%	$17.3M	0.0%	$23.71	31
2021-Q1	Decreased	662,285	-14.7%	$12.9M	0.0%	$19.44	0
2020-Q4	Increased	775,985	+35.6%	$13.5M	0.0%	$17.46	36
2020-Q3	Increased	572,285	+0.3%	$7.8M	0.0%	$13.69	27
2020-Q2	Increased	570,885	+20.6%	$8.7M	0.0%	$15.20	33
2020-Q1	Decreased	473,285	-7.3%	$5.3M	0.0%	$11.10	0
2019-Q4	Decreased	510,685	-1.2%	$7M	0.0%	$13.78	0
2019-Q3	Decreased	516,885	-15.1%	$6.8M	0.0%	$13.13	0
2019-Q2	Decreased	608,885	-16.4%	$7.3M	0.0%	$12.04	0
2019-Q1	Increased	727,885	+13.1%	$7.6M	0.0%	$10.45	31
2018-Q4	First report	643,885	-	$4.9M	0.0%	$7.67	0

Other major holders of RMBS: BlackRock, Inc., FMR LLC