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Equibles

CITADEL ADVISORS LLC

Position in FORM — Formfactor Inc

CIK 1423053 MIAMI, FL
Back to FORM Full portfolio

Position in FORM

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$38,427,340
+$18,944,571 QoQ
Shares Held
240,276
+19.6% QoQ
Ownership
0.308%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#57
of 511 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in FORM Over Time

Shares Held

Position Value (USD)

Derivatives in FORM

reported options exposure · as of Jun 30, 2026
CallValue
$38,591,109
CallShares
241,300
PutValue
$16,152,930
PutShares
101,000

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, 2026

CITADEL ADVISORS LLC holds $3,316,848,873 across 26 Semiconductor Equipment & Materials names. FORM ranks #12 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMAT
Applied Materials Inc /De
 1,080,951 $781,527,573
2 KLAC
Kla Corp
 2,541,076 $766,668,039
3 LRCX
Lam Research Corp
 1,420,975 $615,751,095
4 ASML
Asml Holding NV
 188,358 $374,726,919
5 ONTO
Onto Innovation Inc.
 342,187 $129,500,670
6 AXTI
Axt Inc
 1,481,332 $106,774,410
7 Q
Qnity Electronics, Inc.
 613,148 $100,133,199
8 AMKR
Amkor Technology, Inc.
 1,028,138 $88,656,339

All Filings in FORM

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $38,591,109 241,300
2026-06-30 $16,152,930 101,000
2026-06-30 $38,427,340 240,276
2026-03-31 $5,315,052 54,800
2026-03-31 $19,482,769 200,874
2026-03-31 $3,074,583 31,700
2025-12-31 $2,677,440 48,000
2025-12-31 $1,634,354 29,300
2025-12-31 $10,766,041 193,009
2025-09-30 $3,857,242 105,910
2025-09-30 $1,114,452 30,600
2025-09-30 $3,529,098 96,900
2025-06-30 $2,563,545 74,500
2025-06-30 $1,868,255 54,294
2025-06-30 $929,070 27,000
2025-03-31 $2,359,386 83,400
2025-03-31 $2,964,792 104,800
2024-12-31 $2,266,484 51,511
2024-12-31 $1,540,000 35,000
2024-12-31 $2,706,000 61,500
2024-09-30 $2,097,600 45,600
2024-09-30 $671,600 14,600
2024-09-30 $935,870 20,345
2024-06-30 $460,028 7,600
2024-06-30 $2,015,649 33,300
2024-03-31 $1,090,557 23,900
2024-03-31 $406,107 8,900
2023-12-31 $1,690,506 40,530
2023-12-31 $354,535 8,500
2023-12-31 $66,736 1,600
2023-09-30 $2,038,364 58,339
2023-09-30 $562,534 16,100
2023-09-30 $34,940 1,000
2023-06-30 $14,558,454 425,437
2023-06-30 $461,970 13,500
2023-06-30 $246,384 7,200
2023-03-31 $375,830 11,800
2023-03-31 $152,880 4,800
2023-03-31 $14,432,285 453,133
2022-12-31 $5,634,282 253,454
2022-12-31 $255,645 11,500
2022-12-31 $35,568 1,600
2022-09-30 $4,702,736 187,734
2022-09-30 $410,820 16,400
2022-06-30 $857,287 22,135
2022-06-30 $344,697 8,900
2022-03-31 $588,420 14,000
2021-12-31 $754,380 16,500
2021-12-31 $724,433 15,845
2021-09-30 $567,416 15,200