Ultra Clean Holdings, Inc.
DE ˙ DB ˙ US90385V1070
76,52 € ↓ -4,30 (-5,32%)
2026-06-05
DEL PRIS
SecurityDE:UCE / Ultra Clean Holdings, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership6,699 shares
Latest Disclosed Value $ 416,540
Advisor Group Holdings, Inc. ownership in UCE / Ultra Clean Holdings, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 6,699 shares of Ultra Clean Holdings, Inc. (DE:UCE) valued at $321,552 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 21,685 shares of Ultra Clean Holdings, Inc.. This represents a change in shares of -69.11% during the quarter. The current value of the position is $512,607 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (UCE) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:UCE / Ultra Clean Holdings, Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 6,699 -14,986 -69.11 417 -24.23 0.0004
2026-02-17 2025-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 21,685 -3,816 -14.96 549 -17.81 0.0008
2025-11-14 2025-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 25,501 2,409 10.43 669 28.21 0.0009
2025-09-04 2025-06-30 13F/A-1 ULTRA CLEAN HLDGS COM 90385V107 23,092 17,495 312.58 521 337.82 0.0009
2025-08-13 2025-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 9,350 3,753 311 0.0004
2025-05-12 2025-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 5,597 -4,922 -46.79 120 -68.52 0.0003
2025-06-06 2024-12-31 13F/A-1 ULTRA CLEAN HLDGS COM 90385V107 10,519 687 6.99 378 -3.57 0.0008
2025-02-07 2024-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 9,773 -59 378 0.0010
2024-11-13 2024-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 9,832 49 0.50 392 -18.16 0.0009
2024-08-13 2024-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 9,783 -14,250 -59.29 479 -56.61 0.0011
2024-05-10 2024-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 24,033 2,949 13.99 1,104 53.55 0.0025
2024-02-12 2023-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 21,084 -18,093 -46.18 720 -38.12 0.0013
2023-11-13 2023-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 39,177 5,640 16.82 1,162 -9.85 0.0017
2023-08-21 2023-06-30 13F/A-1 ULTRA CLEAN HLDGS COM 90385V107 33,537 -2,148 -6.02 1,290 8.96 0.0023
2023-08-10 2023-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 33,537 -2,148 1,290 0.0003
2023-05-12 2023-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 35,685 -2,738 -7.13 1,183 -7.07 0.0022
2023-02-10 2022-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 38,423 1,444 3.90 1,274 33.58 0.0026
2022-11-14 2022-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 36,979 -3,542 -8.74 953 -20.91 0.0022
2022-08-10 2022-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 40,521 2,019 5.24 1,205 -26.16 0.0027
2022-05-04 2022-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 38,502 -3,410 -8.14 1,632 -32.08 0.0032
2022-02-03 2021-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 41,912 3,711 9.71 2,403 47.79 0.0045
2021-11-05 2021-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 38,201 -427 -1.11 1,626 -21.60 0.0034
2021-08-02 2021-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 38,628 -1,716 -4.25 2,074 -11.44 0.0045
2021-05-13 2021-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 40,344 9,875 32.41 2,342 146.53 0.0056
2021-02-10 2020-12-31 13F ULTRA CLEAN HLDGS COM 90385V107 30,469 -11,276 -27.01 950 6.03 0.0025
2020-11-12 2020-09-30 13F ULTRA CLEAN HLDGS COM 90385V107 41,745 10,569 33.90 896 27.09 0.0027
2020-08-14 2020-06-30 13F ULTRA CLEAN HLDGS COM 90385V107 31,176 3,925 14.40 705 87.50 0.0024
2020-05-18 2020-03-31 13F ULTRA CLEAN HLDGS COM 90385V107 27,251 27,251 376 0.0015
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-02-03 2021-12-31 13F ULTRA CLEAN HLDGS INC CALL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-05 2021-09-30 13F ULTRA CLEAN HLDGS INC CALL COM Call 20 2 n/a n/a n/a
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.