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Walleye Capital LLC

Position in MKSI — Mks Inc

CIK 1758720 NEW YORK, NY

Position in MKSI

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$12,283,596
-$5,914,598 QoQ
Shares Held
27,616
-65.1% QoQ
Ownership
0.041%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#182
of 775 holders
Holding Since
Sep 2022
16 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Derivatives in MKSI

reported options exposure · as of Jun 30, 2026
CallValue
$533,760
CallShares
1,200
PutValue
$355,840
PutShares
800

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 Scientific & Technical Instruments

Technology · as of Jun 30, 2026

Walleye Capital LLC holds $106,607,393 across 9 Scientific & Technical Instruments names. MKSI ranks #2 (11.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MKSI
Mks Inc
This page
27,616 $12,283,596

All Filings in MKSI

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41 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $355,840 800
2026-06-30 $533,760 1,200
2026-06-30 $12,283,596 27,616
2026-03-31 $18,198,194 79,188
2026-03-31 $413,658 1,800
2026-03-31 $367,696 1,600
2025-12-31 $15,980 100
2025-12-31 $1,830,189 11,453
2025-12-31 $31,960 200
2025-09-30 $86,639 700
2025-09-30 $24,754 200
2025-09-30 $6,224,145 50,288
2025-06-30 $79,488 800
2025-06-30 $79,488 800
2025-06-30 $3,777,865 38,022
2025-03-31 $376,705 4,700
2025-03-31 $5,098,662 63,614
2025-03-31 $144,270 1,800
2024-12-31 $11,759,533 112,650
2024-09-30 $228,291 2,100
2024-09-30 $913,164 8,400
2024-09-30 $13,451,992 123,742
2024-06-30 $1,999,702 15,314
2024-06-30 $365,624 2,800
2024-06-30 $2,507,136 19,200
2024-03-31 $837,900 6,300
2024-03-31 $1,343,300 10,100
2023-12-31 $1,687,068 16,400
2023-12-31 $997,839 9,700
2023-09-30 $1,021,172 11,800
2023-09-30 $12,270,333 141,788
2023-09-30 $372,122 4,300
2023-06-30 $313,490 2,900
2023-06-30 $940,470 8,700
2023-06-30 $8,435,367 78,033
2023-03-31 $522,858 5,900
2023-03-31 $522,858 5,900
2023-03-31 $546,874 6,171
2022-12-31 $1,165,545 13,756
2022-09-30 $1,010,521 12,228
2022-09-30 $123,960 1,500