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MILLENNIUM MANAGEMENT LLC

Position in UCTT — Ultra Clean Holdings, Inc.

CIK 1273087 NEW YORK, NY

Position in UCTT

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$55,354,150
+$12,733,740 QoQ
Shares Held
388,205
-43.4% QoQ
Ownership
0.857%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#25
of 438 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in UCTT Over Time

Shares Held

Position Value (USD)

Derivatives in UCTT

reported options exposure · as of Mar 31, 2026
CallValue
$1,554,500
CallShares
25,000
PutValue
$0
PutShares
0

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

MILLENNIUM MANAGEMENT LLC holds $1,482,024,171 across 26 Semiconductor Equipment & Materials names. UCTT ranks #9 (3.7% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in UCTT

Export CSV
23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $55,354,150 388,205
2026-03-31 $42,620,410 685,436
2026-03-31 $1,554,500 25,000
2025-12-31 $14,183,660 559,955
2025-09-30 $1,460,382 53,592
2025-06-30 $1,850,469 81,988
2025-03-31 $385,851 18,022
2024-12-31 $5,852,336 162,791
2024-09-30 $10,501,430 262,996
2024-06-30 $632,590 12,910
2023-12-31 $656,546 19,231
2023-09-30 $2,155,377 72,645
2023-06-30 $1,211,989 31,513
2023-03-31 $238,354 7,188
2022-12-31 $222,701 6,718
2022-06-30 $3,045,411 102,298
2022-03-31 $15,394,521 363,164
2021-12-31 $5,017,107 87,467
2021-09-30 $849,103 19,932
2021-06-30 $1,244,208 23,161
2020-09-30 $1,611,517 75,094
2020-06-30 $1,127,245 49,812
2020-03-31 $160,342 11,619