Parallax Volatility Advisers, L.P.
Position in LRCX — Lam Research Corp
CIK 1521001
San Francisco, CA
Position in LRCX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$30,433,199
+$28,793,573 QoQ
Shares Held
70,231
+815.2% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
1.50%
of 13F equity value
Holder Rank
#514
of 3,114 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in LRCX Over Time
Shares Held
Position Value (USD)
Derivatives in LRCX
reported options exposure · as of Jun 30, 2026CallValue
$12,133,240
CallShares
28,000
PutValue
$7,366,610
PutShares
17,000
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 Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026Parallax Volatility Advisers, L.P. holds $99,850,985 across 5 Semiconductor Equipment & Materials names. LRCX ranks #2 (30.5% of the industry book) .
All Filings in LRCX
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,366,610 | 17,000 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $30,433,199 | 70,231 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $12,133,240 | 28,000 | Call | Sole | 2026-08-14 | |
| 2026-03-31 | $20,981,412 | 98,200 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $1,639,626 | 7,674 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $22,562,496 | 105,600 | Put | Sole | 2026-05-15 | |
| 2025-12-31 | $945,427 | 5,523 | Shares | Sole | 2026-02-17 | |
| 2025-12-31 | $33,431,454 | 195,300 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $17,409,006 | 101,700 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $17,755,140 | 132,600 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $19,522,620 | 145,800 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $6,424,440 | 66,000 | Call | Sole | 2025-08-14 | |
| 2025-06-30 | $15,204,508 | 156,200 | Put | Sole | 2025-08-14 | |
| 2025-03-31 | $49,363,300 | 679,000 | Call | Sole | 2025-05-15 | |
| 2025-03-31 | $199,052 | 2,738 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $26,869,920 | 369,600 | Put | Sole | 2025-05-15 | |
| 2024-12-31 | $70,409,804 | 974,800 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $23,221,945 | 321,500 | Call | Sole | 2025-02-14 | |
| 2024-09-30 | $45,292,440 | 55,500 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $4,821,400 | 5,908 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $15,097,480 | 18,500 | Call | Sole | 2024-11-14 | |
| 2024-06-30 | $3,249,922 | 3,052 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $57,075,960 | 53,600 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $9,051,225 | 8,500 | Call | Sole | 2024-08-14 | |
| 2024-03-31 | $6,136,436 | 6,316 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $14,184,922 | 14,600 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $388,628 | 400 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $41,591,106 | 53,100 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $39,711,282 | 50,700 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $30,272,991 | 48,300 | Call | Sole | 2023-11-14 | |
| 2023-09-30 | $38,859,740 | 62,000 | Put | Sole | 2023-11-14 | |
| 2023-06-30 | $24,685,824 | 38,400 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $15,235,782 | 23,700 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $54,549,348 | 102,900 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $21,734 | 41 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $31,860,212 | 60,100 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $153,283,410 | 364,700 | Put | Sole | 2023-02-27 | |
| 2022-12-31 | $3,782 | 9 | Shares | Sole | 2023-02-27 | |
| 2022-12-31 | $162,025,650 | 385,500 | Call | Sole | 2023-02-27 | |
| 2022-09-30 | $3,294 | 9 | Shares | Sole | 2022-11-21 | |
| 2022-09-30 | $68,295,600 | 186,600 | Call | Sole | 2022-11-21 | |
| 2022-09-30 | $40,552,800 | 110,800 | Put | Sole | 2022-11-21 | |
| 2022-06-30 | $32,557,860 | 76,400 | Call | Sole | 2022-08-17 | |
| 2022-06-30 | $32,003,865 | 75,100 | Put | Sole | 2022-08-17 | |
| 2022-06-30 | $79,263 | 186 | Shares | Sole | 2022-08-17 | |
| 2022-03-31 | $76,501,903 | 142,300 | Call | Sole | 2022-05-16 | |
| 2022-03-31 | $104,242,579 | 193,900 | Put | Sole | 2022-05-16 | |
| 2022-03-31 | $3,272,969 | 6,088 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $16,518,156 | 22,969 | Shares | Sole | 2022-02-14 | |
| 2021-12-31 | $31,930,260 | 44,400 | Call | Sole | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||