Ultra Clean Holdings, Inc.
DE ˙ DB ˙ US90385V1070
76,52 € ↓ -4,30 (-5,32%)
2026-06-05
DEL PRIS
SecurityDE:UCE / Ultra Clean Holdings, Inc.
InstitutionGsa Capital Partners Llp
Latest Disclosed Ownership20,923 shares
Latest Disclosed Value $ 1,301
Gsa Capital Partners Llp ownership in UCE / Ultra Clean Holdings, Inc.

On May 8, 2026 - Gsa Capital Partners Llp filed a 13F-HR form disclosing ownership of 20,923 shares of Ultra Clean Holdings, Inc. (DE:UCE) valued at $1,004,304 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 7, 2025 disclosing 0 shares of Ultra Clean Holdings, Inc.. The current value of the position is $1,601,028 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 20,923 20,923 1 0.0809
2025-11-07 2025-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 0 -41,461 -100.00 0 0.0000
2025-07-22 2025-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 41,461 41,461 1 0.0655
2022-02-14 2021-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 0 -16,212 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 16,212 16,212 691 0.0704
2021-02-03 2020-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 0 -11,840 -100.00 0 -100.00
2020-11-06 2020-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 11,840 11,840 254 0.0424
2020-08-11 2020-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 0 -15,414 -100.00 0 -100.00
2020-05-12 2020-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 15,414 15,414 213 0.0534
2019-05-15 2019-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 0 -16,450 -100.00 0 -100.00
2019-02-12 2018-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 16,450 16,450 139 0.0160
2018-11-13 2018-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 0 -18,543 -100.00 0 -100.00
2018-08-09 2018-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 18,543 -61,235 -76.76 308 -79.95 0.0153
2018-05-11 2018-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 79,778 -22,218 -21.78 1,536 -34.78 0.0813
2018-02-14 2017-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 101,996 -24,324 -19.26 2,355 -39.12 0.1433
2017-11-20 2017-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 126,320 17,724 16.32 3,868 89.98 0.2636
2017-08-11 2017-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 108,596 58,053 114.86 2,036 138.69 0.1329
2017-05-15 2017-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 50,543 -21,192 -29.54 853 22.56 0.0458
2017-02-14 2016-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 71,735 59,818 501.96 696 690.91 0.0416
2016-11-14 2016-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 11,917 -140,010 -92.16 88 -89.81 0.0047
2016-08-04 2016-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 151,927 -4,400 -2.81 864 3.10 0.0478
2016-05-11 2016-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 156,327 21,534 15.98 838 21.45 0.0534
2016-02-09 2015-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 134,793 -39,205 -22.53 690 -30.93 0.0338
2015-11-13 2015-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 173,998 8,947 5.42 999 -2.82 0.0491
2015-08-14 2015-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 165,051 56,921 52.64 1,028 32.99 0.0395
2015-05-14 2015-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 108,130 -14,843 -12.07 773 -32.25 0.0307
2015-02-05 2014-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 122,973 -6,345 -4.91 1,141 -1.38 0.0796
2014-11-06 2014-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 129,318 47,825 58.69 1,157 56.78 0.0609
2014-08-08 2014-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 81,493 55,000 207.60 738 112.07 0.0332
2014-05-14 2014-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 26,493 4,100 18.31 348 54.67 0.0248
2014-02-12 2013-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 22,393 -1,784 -7.38 225 34.73 0.0178
2013-11-14 2013-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 24,177 -17,207 -41.58 167 -33.20 0.0132
2013-08-13 2013-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 41,384 41,384 250 0.0297
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.