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Parallax Volatility Advisers, L.P.

Position in STM — STMicroelectronics N.V.

CIK 1521001 San Francisco, CA

Position in STM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
+$0 QoQ
Shares Held
0
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
22 quarters on record

Common Shares in STM Over Time

Shares Held

Position Value (USD)

Derivatives in STM

reported options exposure · as of Jun 30, 2026
CallValue
$8,612,350
CallShares
115,000
PutValue
$696,477
PutShares
9,300

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 STM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $8,612,350 115,000
2026-06-30 $696,477 9,300
2026-03-31 $6,533,405 189,100
2026-03-31 $2,073,000 60,000
2025-03-31 $4,011,740 182,684
2025-03-31 $5,114,484 232,900
2024-12-31 $7,635,826 305,800
2024-12-31 $749,100 30,000
2024-12-31 $5,123,094 205,170
2024-09-30 $891,900 30,000
2024-09-30 $7,590,069 255,300
2024-09-30 $1,930,695 64,941
2024-06-30 $106,056 2,700
2024-06-30 $932,703 23,745
2024-06-30 $2,557,128 65,100
2023-12-31 $2,651,877 52,900
2023-09-30 $3,513,224 81,400
2023-06-30 $2,559,488 51,200
2023-06-30 $154,969 3,100
2023-03-31 $1,144,686 21,400
2023-03-31 $545,598 10,200
2023-03-31 $2,757,890 51,559
2022-12-31 $441,068 12,400
2022-12-31 $821,667 23,100
2022-09-30 $5,259,800 170,000
2022-09-30 $355,810 11,500
2022-06-30 $151,056 4,800
2022-06-30 $56,646 1,800
2022-03-31 $631,012 14,600
2022-03-31 $596,436 13,800
2021-12-31 $1,214,619 24,849
2021-09-30 $780,977 17,900
2021-09-30 $187,609 4,300
2021-09-30 $1,383,681 31,714
2021-06-30 $81,054 2,228
2021-06-30 $454,750 12,500
2021-06-30 $6,286,464 172,800
2021-03-31 $40,744,790 1,063,000
2021-03-31 $1,216,172 31,729
2021-03-31 $1,483,371 38,700
2020-12-31 $4,005,248 107,900
2020-12-31 $1,327,596 35,765
2020-12-31 $75,509,504 2,034,200
2020-09-30 $41,235,084 1,343,600
2020-09-30 $1,463,913 47,700
2020-09-30 $6,868,145 223,791
2020-06-30 $43,856 1,600
2020-06-30 $2,886,273 105,300
2020-03-31 $2,008,780 94,000
2020-03-31 $2,307 108