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Parallax Volatility Advisers, L.P.

Position in ARM — Arm Holdings PLC /Uk

CIK 1521001 San Francisco, CA

Position in ARM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
-$1,777,388 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2023
11 quarters on record

Common Shares in ARM Over Time

Shares Held

Position Value (USD)

Derivatives in ARM

reported options exposure · as of Jun 30, 2026
CallValue
$39,038,157
CallShares
110,100
PutValue
$85,309,542
PutShares
240,600

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

Parallax Volatility Advisers, L.P. holds $366,438,387 across 12 Semiconductors names.

# Ticker Company Shares Value (USD) Open

All Filings in ARM

Export CSV
29 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $85,309,542 240,600
2026-06-30 $39,038,157 110,100
2026-03-31 $20,362,288 134,600
2026-03-31 $1,777,388 11,749
2026-03-31 $53,220,304 351,800
2025-12-31 $23,017,406 210,570
2025-12-31 $52,829,523 483,300
2025-12-31 $82,736,739 756,900
2025-09-30 $17,253,856 121,944
2025-09-30 $50,851,506 359,400
2025-09-30 $101,122,903 714,700
2025-06-30 $107,589,448 665,200
2025-06-30 $96,013,069 593,626
2025-06-30 $38,720,556 239,400
2025-03-31 $96,591,555 904,500
2025-03-31 $25,690,577 240,571
2025-03-31 $91,967,548 861,200
2024-12-31 $88,449,120 717,000
2024-12-31 $167,374,848 1,356,800
2024-12-31 $84,151,997 682,166
2024-09-30 $302,037,120 2,112,000
2024-09-30 $293,470,821 2,052,100
2024-06-30 $349,426,872 2,135,600
2024-06-30 $270,791,100 1,655,000
2024-03-31 $91,205,203 729,700
2024-03-31 $93,289,911 746,379
2024-03-31 $67,557,095 540,500
2023-12-31 $7,912,768 105,300
2023-12-31 $11,271,750 150,000