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JANE STREET GROUP, LLC

Position in RMBS — Rambus Inc

CIK 1595888 NEW YORK, NY

Position in RMBS

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$12,612,025
+$12,145,227 QoQ
Shares Held
95,013
+1651.1% QoQ
Ownership
0.088%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#103
of 618 holders
Holding Since
Jun 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in RMBS Over Time

Shares Held

Position Value (USD)

Derivatives in RMBS

reported options exposure · as of Jun 30, 2026
CallValue
$68,374,374
CallShares
515,100
PutValue
$62,042,676
PutShares
467,400

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Semiconductors

Technology · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $11,974,282,121 across 58 Semiconductors names. RMBS ranks #35 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in RMBS

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $68,374,374 515,100
2026-06-30 $12,612,025 95,013
2026-06-30 $62,042,676 467,400
2026-03-31 $466,798 5,426
2026-03-31 $4,568,193 53,100
2026-03-31 $9,463,300 110,000
2025-12-31 $2,030,769 22,100
2025-12-31 $3,997,215 43,500
2025-12-31 $501,259 5,455
2025-09-30 $20,126,229 193,150
2025-09-30 $15,442,440 148,200
2025-09-30 $8,179,700 78,500
2025-06-30 $6,973,121 108,921
2025-06-30 $4,871,922 76,100
2025-06-30 $4,033,260 63,000
2025-03-31 $18,034,506 348,291
2025-03-31 $1,418,772 27,400
2025-03-31 $4,566,996 88,200
2024-12-31 $2,553,138 48,300
2024-12-31 $11,873,464 224,621
2024-12-31 $4,466,670 84,500
2024-09-30 $2,060,336 48,800
2024-09-30 $18,138,006 429,607
2024-09-30 $1,207,492 28,600
2024-06-30 $7,992,004 136,011
2024-03-31 $4,075,256 65,932
2023-12-31 $19,179,000 281,011
2023-09-30 $5,599,640 100,370
2023-06-30 $5,162,090 80,444
2023-03-31 $3,161,510 61,676
2022-12-31 $3,341,503 93,286
2022-09-30 $470,575 18,512
2022-03-31 $439,029 13,767
2022-03-31 $2,984,904 93,600
2022-03-31 $1,875,132 58,800
2021-12-31 $4,658,315 158,500
2021-12-31 $628,946 21,400
2021-09-30 $357,420 16,100
2021-09-30 $3,341,100 150,500
2021-09-30 $905,871 40,805
2021-06-30 $1,089,640 45,957
2021-06-30 $3,966,683 167,300
2021-06-30 $388,844 16,400
2021-03-31 $500,463 25,744
2021-03-31 $1,148,904 59,100
2021-03-31 $476,280 24,500
2020-12-31 $988,236 56,600
2020-12-31 $219,961 12,598
2020-09-30 $1,117,104 81,600
2020-06-30 $740,240 48,700