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BH

Brian E. Harding

UCTT
CHIEF ACCOUNTING OFFICER · ULTRA CLEAN HOLDINGS, INC. · CIK 0001672993
FILING MIX · LIFETIME17%/83%
BUYS
8
SELLS
38
TOTAL VALUE
$4.09M
COMPANIES
1
ACTIVE SINCE
Jun 2022
HOLDINGS NOW
36,978
AVG SELL PX
$65.20
TRADE KIND
SHOWING 46 / 46
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 5 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Brian E. Harding, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d5+80.00%-0.37%+0.93%-1.30%-2.11%—
14d5+60.00%-0.68%+0.39%-2.09%-1.97%—
30d5+0.00%-1.64%-1.04%-3.13%+0.79%—
60d5+0.00%+13.59%+4.30%+9.29%+14.22%—
90d5(1 pending)+75.00%-21.60%+0.84%-22.45%-22.40%—
180d5(1 pending)+75.00%-16.32%+11.70%-28.02%-30.72%—
1y5(1 pending)+100.00%-16.38%+11.68%-28.06%-64.94%—
2y5(2 pending)+0.00%+95.38%+43.61%+51.77%+51.77%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
UCTT · 36,978 shares · as of Jul 2, 2026
014,07628,15142,22756,3022023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 8 buys / 38 sellsCOVERAGE · 18 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
440$126.92$55.8K36,978Jul 2, 2026Jul 7, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
2,194$128.37$281.6K34,784Jul 2, 2026Jul 7, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,203$130.12$156.5K33,581Jul 2, 2026Jul 7, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
9,363——37,418Jun 26, 2026Jun 30, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
54$86.00$4.6K33,526Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,407$89.73$126.3K40,331Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
986$90.55$89.3K28,718Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
226$87.71$19.8K33,300Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
488$87.25$42.6K37,331Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
636$91.65$58.3K37,819Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
886$89.36$79.2K35,246Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
375$90.76$34.0K32,375Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
381$88.76$33.8K32,919Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
663$91.38$60.6K28,055Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,933$88.74$171.5K41,738Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,056$89.33$94.3K29,704Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
196$85.86$16.8K44,847Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,002$88.36$88.5K30,760Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
496$87.22$43.3K31,762Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
169$89.67$15.2K32,750Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,277$90.73$115.9K33,969Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,176$87.72$103.2K43,671Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
117$91.63$10.7K32,258Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,199$88.47$106.1K36,132Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
1,876$90.79$170.3K38,455Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
389$91.59$35.6K33,580Jun 4, 2026Jun 8, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
8,412——45,043May 22, 2026May 27, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
4,000$80.00$320.0K36,631May 5, 2026May 7, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
2,640$78.15$206.3K43,640Apr 30, 2026May 4, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
3,009$78.15$235.2K40,631Apr 30, 2026May 4, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
1,957$78.15$152.9K46,280Apr 30, 2026May 4, 2026 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
4,198$22.57$94.7K48,237Jun 30, 2025Jul 2, 2025 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
2,640$18.71$49.4K51,706Apr 30, 2025May 2, 2025 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
1,956$18.71$36.6K54,346Apr 30, 2025May 2, 2025 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
18,090——56,302Apr 25, 2025Apr 29, 2025 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASE
Chief Accounting Officer
4,000$24.00$96.0K38,212Mar 7, 2025Mar 11, 2025 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
3,796$49.00$186.0K33,619Jun 30, 2024Jul 2, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
8,102$44.00$356.5K39,415May 9, 2024May 13, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
898$43.71$39.3K47,517May 9, 2024May 13, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
2,000$43.50$87.0K37,415May 9, 2024May 13, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
898$21.94$19.7K48,415May 3, 2024May 13, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
2,388$41.83$99.9K47,517Apr 30, 2024May 2, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
11,237——49,905Apr 26, 2024Apr 30, 2024 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
SALE
Chief Accounting Officer
2,599$38.46$100.0K38,668Jun 30, 2023Jul 5, 2023 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
15,162——41,267Apr 28, 2023May 2, 2023 ↗View →
UCTT
ULTRA CLEAN HOLDINGS, INC.
PURCHASEGRANT
Stock grant
24,105——26,105Jun 24, 2022Jun 27, 2022 ↗View →
Other insiders · UCTT
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About this filer
CIK 0001672993
ROLE
Chief Accounting Officer
PRIMARY
UCTT
COMPANIES
1
ACTIVE SINCE
Jun 2022
MARKETPEEL · /INSIDER/0001672993DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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