Ultra Clean Holdings (UCTT)
Ultra Clean Holdings on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as semiconductors & related devices.
3.7M
Short interest
settlement 2026-09-30
4.4
Days to cover
+0.1 days vs prior
43.5%
Short share of volume
2026-10-23
20
Fails to deliver
settlement 2026-09-30
Tue 27 Oct
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in UCTT is 3,714,027 shares, up 102,763 shares over the last month. Over the last 48 readings it ranged from 854,850 shares (15 October 2024) to 3,714,027 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 837K shares a day that is 4.4 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 3,714,027 | +2.6% | 837,076 | 4.44 |
| 2026-09-15 | 3,618,539 | +0.2% | 824,693 | 4.39 |
| 2026-08-31 | 3,611,264 | +14.5% | 867,363 | 4.16 |
| 2026-08-14 | 3,155,174 | -5.6% | 1,376,298 | 2.29 |
| 2026-07-31 | 3,343,289 | -6.0% | 1,376,027 | 2.43 |
| 2026-07-15 | 3,555,892 | +10.4% | 1,645,966 | 2.16 |
| 2026-06-30 | 3,221,999 | -8.0% | 1,574,553 | 2.05 |
| 2026-06-15 | 3,502,511 | +14.0% | 1,305,529 | 2.68 |
| 2026-05-29 | 3,073,344 | +5.2% | 1,029,303 | 2.99 |
| 2026-05-15 | 2,921,707 | +20.5% | 1,099,728 | 2.66 |
| 2026-04-30 | 2,423,873 | -7.4% | 988,175 | 2.45 |
| 2026-04-15 | 2,616,992 | -8.9% | 895,573 | 2.92 |
| 2026-03-31 | 2,871,465 | -5.3% | 1,110,475 | 2.59 |
| 2026-03-13 | 3,032,105 | +20.1% | 1,450,072 | 2.09 |
| 2026-02-27 | 2,525,785 | +19.4% | 2,441,441 | 1.03 |
| 2026-02-13 | 2,114,454 | -8.7% | 1,204,001 | 1.76 |
| 2026-01-30 | 2,314,795 | -9.0% | 1,055,645 | 2.19 |
| 2026-01-15 | 2,543,039 | +16.1% | 1,250,061 | 2.03 |
| 2025-12-31 | 2,189,838 | +2.5% | 335,705 | 6.52 |
| 2025-12-15 | 2,136,392 | +12.4% | 640,153 | 3.34 |
| 2025-11-28 | 1,900,337 | +19.5% | 498,288 | 3.81 |
| 2025-11-14 | 1,590,611 | +11.4% | 446,847 | 3.56 |
| 2025-10-31 | 1,427,421 | -8.0% | 513,657 | 2.78 |
| 2025-10-15 | 1,551,674 | -2.7% | 447,340 | 3.47 |
| 2025-09-30 | 1,594,675 | +4.2% | 412,585 | 3.87 |
| 2025-09-15 | 1,530,077 | +2.4% | 287,249 | 5.33 |
| 2025-08-29 | 1,494,779 | -3.0% | 320,383 | 4.67 |
| 2025-08-15 | 1,540,194 | +8.8% | 457,063 | 3.37 |
| 2025-07-31 | 1,414,908 | -2.3% | 558,049 | 2.54 |
| 2025-07-15 | 1,447,651 | +12.6% | 471,795 | 3.07 |
| 2025-06-30 | 1,286,110 | +5.9% | 603,526 | 2.13 |
| 2025-06-13 | 1,214,023 | -10.6% | 581,669 | 2.09 |
| 2025-05-30 | 1,358,140 | -4.8% | 362,891 | 3.74 |
| 2025-05-15 | 1,427,072 | -4.0% | 641,169 | 2.23 |
| 2025-04-30 | 1,486,437 | +12.1% | 688,089 | 2.16 |
| 2025-04-15 | 1,326,453 | +22.1% | 666,990 | 1.99 |
| 2025-03-31 | 1,085,904 | -0.3% | 479,381 | 2.27 |
| 2025-03-14 | 1,089,358 | +10.1% | 782,472 | 1.39 |
| 2025-02-28 | 989,729 | +1.3% | 763,225 | 1.30 |
| 2025-02-14 | 977,319 | -12.1% | 281,544 | 3.47 |
| 2025-01-31 | 1,112,306 | -7.6% | 362,339 | 3.07 |
| 2025-01-15 | 1,203,712 | +0.9% | 300,261 | 4.01 |
| 2024-12-31 | 1,193,135 | +1.3% | 309,792 | 3.85 |
| 2024-12-13 | 1,177,517 | +16.6% | 308,783 | 3.81 |
| 2024-11-29 | 1,009,876 | +9.9% | 324,429 | 3.11 |
| 2024-11-15 | 918,541 | -8.0% | 431,078 | 2.13 |
| 2024-10-31 | 998,117 | +16.8% | 588,106 | 1.70 |
| 2024-10-15 | 854,850 | +12.3% | 359,428 | 2.38 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of UCTT volume is 43.5%, up 20.2 points over the last five sessions. Over the last 30 readings it ranged from 22.9% (13 October 2026) to 64.7% (18 September 2026). The latest reading is in line with the 30-session average of 43.0%, on 433K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 188K | 433K | 43.5% | 10,032 |
| 2026-10-22 | 260K | 720K | 36.0% | 23,782 |
| 2026-10-21 | 131K | 306K | 42.8% | 5 |
| 2026-10-20 | 167K | 443K | 37.7% | 0 |
| 2026-10-19 | 184K | 511K | 36.1% | 0 |
| 2026-10-16 | 107K | 459K | 23.3% | 447 |
| 2026-10-15 | 190K | 679K | 28.1% | 107 |
| 2026-10-14 | 178K | 599K | 29.7% | 265 |
| 2026-10-13 | 239K | 1.0M | 22.9% | 137 |
| 2026-10-12 | 223K | 541K | 41.2% | 0 |
| 2026-10-09 | 103K | 287K | 36.0% | 0 |
| 2026-10-08 | 215K | 580K | 37.0% | 5 |
| 2026-10-07 | 117K | 282K | 41.4% | 307 |
| 2026-10-06 | 165K | 386K | 42.6% | 77 |
| 2026-10-05 | 242K | 512K | 47.2% | 7 |
| 2026-10-02 | 340K | 793K | 42.9% | 10 |
| 2026-10-01 | 148K | 410K | 36.2% | 1,332 |
| 2026-09-30 | 139K | 433K | 32.0% | 0 |
| 2026-09-29 | 220K | 422K | 52.1% | 0 |
| 2026-09-28 | 123K | 267K | 46.2% | 0 |
| 2026-09-25 | 153K | 263K | 58.2% | 560 |
| 2026-09-24 | 111K | 211K | 52.5% | 3 |
| 2026-09-23 | 134K | 322K | 41.7% | 46 |
| 2026-09-22 | 218K | 411K | 53.1% | 2 |
| 2026-09-21 | 147K | 249K | 58.9% | 69 |
| 2026-09-18 | 209K | 323K | 64.7% | 0 |
| 2026-09-17 | 124K | 227K | 54.7% | 0 |
| 2026-09-16 | 118K | 203K | 58.0% | 0 |
| 2026-09-15 | 98K | 261K | 37.6% | 6,570 |
| 2026-09-14 | 168K | 306K | 54.8% | 355 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in UCTT is 20 shares, down 8,738 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (4 June 2026) to 18,989 shares (6 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 20 | $80.46 | $2K |
| 2026-09-22 | 8,758 | $73.05 | $640K |
| 2026-09-21 | 5,157 | $70.64 | $364K |
| 2026-09-11 | 754 | $71.13 | $54K |
| 2026-09-03 | 3,485 | $66.07 | $230K |
| 2026-08-11 | 58 | $82.27 | $5K |
| 2026-08-05 | 21 | $84.54 | $2K |
| 2026-08-04 | 1,061 | $89.17 | $95K |
| 2026-07-16 | 64 | $102.11 | $7K |
| 2026-07-14 | 98 | $98.25 | $10K |
| 2026-07-06 | 18,989 | $106.48 | $2.0M |
| 2026-07-02 | 5,487 | $129.59 | $711K |
| 2026-06-29 | 11,457 | $118.82 | $1.4M |
| 2026-06-24 | 11,325 | $111.63 | $1.3M |
| 2026-06-23 | 100 | $123.14 | $12K |
| 2026-06-22 | 7,141 | $121.28 | $866K |
| 2026-06-18 | 49 | $111.61 | $5K |
| 2026-06-10 | 44 | $91.88 | $4K |
| 2026-06-04 | 6 | $92.55 | $555 |
| 2026-06-03 | 19 | $90.21 | $2K |
| 2026-05-29 | 57 | $87.29 | $5K |
| 2026-05-26 | 65 | $84.01 | $5K |
| 2026-05-18 | 199 | $85.94 | $17K |
| 2026-05-13 | 17,869 | $82.99 | $1.5M |
| 2026-05-04 | 7 | $74.61 | $522 |
| 2026-04-30 | 1,226 | $72.01 | $88K |
| 2026-04-24 | 277 | $78.24 | $22K |
| 2026-04-23 | 63 | $78.23 | $5K |
| 2026-04-21 | 1,197 | $79.45 | $95K |
| 2026-04-20 | 300 | $79.51 | $24K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for UCTT in the last 90 days. The most recent filings are listed below. Latest filing: Xiao Jinsong (Chief Executive Officer) on 2026-09-30.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Xiao Jinsong | Chief Executive Officer | Tax withholding | 19K | $81.06 | $1.6M | 130K |
| 2026-08-31 | Keogh Michael Dennis | Chief Financial Officer | Grant | 21K | $0.00 | $0 | 21K |
| 2026-08-31 | Cook Christopher S | President, Products Division | Tax withholding | 12K | $67.83 | $848K | 98K |
| 2026-07-02 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $130.12 | $157K | 34K |
| 2026-07-02 | HARDING BRIAN E | Chief Accounting Officer | Sell | 2K | $128.37 | $282K | 35K |
| 2026-07-02 | HARDING BRIAN E | Chief Accounting Officer | Sell | 440 | $126.92 | $56K | 37K |
| 2026-06-26 | HARDING BRIAN E | Chief Accounting Officer | Grant | 9K | $0.00 | $0 | 37K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 260 | $91.75 | $24K | 66K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 1K | $89.10 | $127K | 69K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 120 | $87.52 | $11K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 40 | $86.04 | $3K | 76K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 663 | $91.38 | $61K | 28K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 986 | $90.55 | $89K | 29K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $89.33 | $94K | 30K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $88.36 | $89K | 31K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 496 | $87.22 | $43K | 32K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 117 | $91.63 | $11K | 32K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 375 | $90.76 | $34K | 32K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 169 | $89.67 | $15K | 33K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 381 | $88.76 | $34K | 33K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 226 | $87.71 | $20K | 33K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 54 | $86.00 | $5K | 34K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 389 | $91.59 | $36K | 34K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $90.73 | $116K | 34K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 886 | $89.36 | $79K | 35K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $88.47 | $106K | 36K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 488 | $87.25 | $43K | 37K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 636 | $91.65 | $58K | 38K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 2K | $90.79 | $170K | 38K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $89.73 | $126K | 40K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 2K | $88.74 | $172K | 42K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 1K | $87.72 | $103K | 44K |
| 2026-06-04 | HARDING BRIAN E | Chief Accounting Officer | Sell | 196 | $85.86 | $17K | 45K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 2K | $90.99 | $155K | 67K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 852 | $89.95 | $77K | 68K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 1K | $88.16 | $126K | 71K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 488 | $87.07 | $42K | 72K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 171 | $91.68 | $16K | 73K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 763 | $90.86 | $69K | 73K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 446 | $89.73 | $40K | 74K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 907 | $88.75 | $80K | 74K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 392 | $87.72 | $34K | 75K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 96 | $85.54 | $8K | 75K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 91 | $91.63 | $8K | 75K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 260 | $90.76 | $24K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 157 | $89.59 | $14K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 321 | $88.80 | $29K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 20 | $91.78 | $2K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 301 | $90.98 | $27K | 76K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 150 | $89.91 | $13K | 77K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 360 | $88.85 | $32K | 77K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 120 | $87.43 | $10K | 77K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 40 | $86.00 | $3K | 77K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 172 | $91.70 | $16K | 77K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 972 | $90.89 | $88K | 78K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 688 | $89.78 | $62K | 79K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 1K | $88.69 | $95K | 79K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 600 | $87.37 | $52K | 80K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 784 | $91.63 | $72K | 51K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 3K | $90.79 | $263K | 51K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 2K | $89.70 | $171K | 54K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 3K | $88.69 | $272K | 56K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 2K | $87.59 | $138K | 59K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 200 | $86.18 | $17K | 61K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 18 | $91.76 | $2K | 61K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 358 | $91.03 | $33K | 61K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 259 | $89.97 | $23K | 62K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 419 | $88.73 | $37K | 62K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 160 | $87.52 | $14K | 62K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 50 | $86.00 | $4K | 62K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 825 | $91.29 | $75K | 62K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 936 | $90.40 | $85K | 63K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 935 | $89.22 | $83K | 64K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 988 | $88.29 | $87K | 65K |
| 2026-06-04 | Savage Sheri | CFO | Sell | 396 | $87.24 | $35K | 66K |
| 2026-06-02 | Cho Paul Yoonku | General Counsel and Secretary | Sell | 944 | $89.37 | $84K | 23K |
| 2026-05-27 | LIGGETT EMILY M | Director | Sell | 8K | $92.18 | $756K | 38K |
| 2026-05-22 | Xiao Jinsong | Chief Executive Officer | Grant | 31K | $0.00 | $0 | 149K |
| 2026-05-22 | Wunar Robert Anthony | Chief Operating Officer | Grant | 11K | $0.00 | $0 | 11K |
| 2026-05-22 | Solomon Joanne | Director | Grant | 3K | $0.00 | $0 | 12K |
| 2026-05-22 | Seto Jacqueline A. | Director | Grant | 3K | $0.00 | $0 | 32K |
| 2026-05-22 | Savage Sheri | CFO | Grant | 26K | $0.00 | $0 | 81K |
| 2026-05-22 | Palfrey Jamie J. | SVP, Global Human Resources | Grant | 10K | $0.00 | $0 | 26K |
| 2026-05-22 | McKibben Jeffrey L. | Chief Information Officer | Grant | 6K | $0.00 | $0 | 17K |
| 2026-05-22 | MADDOCK ERNEST E | Director | Grant | 3K | $0.00 | $0 | 48K |
| 2026-05-22 | LIGGETT EMILY M | Director | Grant | 3K | $0.00 | $0 | 46K |
| 2026-05-22 | Johnson Samuel Williams | SVP, Services Business | Grant | 6K | $0.00 | $0 | 16K |
| 2026-05-22 | IBNALE DAVID T | Director | Grant | 3K | $0.00 | $0 | 48K |
| 2026-05-22 | HARDING BRIAN E | Chief Accounting Officer | Grant | 8K | $0.00 | $0 | 45K |
| 2026-05-22 | GRANGER CLARENCE L | Director | Grant | 3K | $0.00 | $0 | 84K |
| 2026-05-22 | EDMAN THOMAS T | Director | Grant | 3K | $0.00 | $0 | 49K |
| 2026-05-22 | Cook Christopher S | President, Products Division | Grant | 13K | $0.00 | $0 | 111K |
| 2026-05-22 | Cho Paul Yoonku | General Counsel and Secretary | Grant | 8K | $0.00 | $0 | 24K |
| 2026-05-14 | McKibben Jeffrey L. | Chief Information Officer | Sell | 4K | $87.00 | $366K | 11K |
| 2026-05-08 | McKibben Jeffrey L. | Chief Information Officer | Sell | 3K | $86.48 | $216K | 16K |
| 2026-05-08 | Cho Paul Yoonku | General Counsel and Secretary | Sell | 2K | $86.89 | $174K | 16K |
| 2026-05-05 | Palfrey Jamie J. | SVP, Global Human Resources | Sell | 9K | $79.72 | $693K | 16K |
| 2026-05-05 | HARDING BRIAN E | Chief Accounting Officer | Sell | 4K | $80.00 | $320K | 37K |
| 2026-05-04 | Cook Christopher S | President, Products Division | Sell | 1K | $74.55 | $92K | 97K |
| 2026-05-04 | Cook Christopher S | President, Products Division | Sell | 10K | $73.89 | $757K | 99K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON14 Form 144 notices on file for UCTT worth $11.9M at the prices reported; 0 in the last 90 days worth $0. Latest: BRIAN HARDING filed on 2026-07-02 to sell 3,837 shares ($494K) from 2026-07-02.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-07-02 | BRIAN HARDINGOfficer | 4K | $494K | 0.009% | 2026-07-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-04 | SHERI SAVAGEOfficer | 30K | $2.7M | 0.067% | 2026-06-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-04 | BRIAN HARDINGOfficer | 17K | $1.5M | 0.038% | 2026-06-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-06-02 | PAUL Y CHOOfficer | 944 | $84K | 0.002% | 2026-06-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-27 | EMILY M LIGGETTDirector | 8K | $756K | 0.018% | 2026-05-27 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-14 | JEFFREY MCKIBBENOfficer | 4K | $366K | 0.009% | 2026-05-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-08 | JEFFREY MCKIBBENOfficer | 3K | $216K | 0.006% | 2026-05-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-08 | PAUL Y CHOOfficer | 2K | $174K | 0.004% | 2026-05-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-05 | JAMIE PALFREYOfficer | 9K | $693K | 0.019% | 2026-05-05 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-04 | HARDING BRIAN EOfficer | 4K | $302K | 0.009% | 2026-05-04 | Fidelity Brokerage Services LLC |
| 2026-05-04 | CHRISTOPHER SCOTT COOKOfficer | 11K | $849K | 0.026% | 2026-05-04 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-01 | CLARENCE GRANGERDirector | 30K | $2.3M | 0.067% | 2026-05-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-01 | CHRISTOPHER SCOTT COOKOfficer | 12K | $896K | 0.027% | 2026-05-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-03 | DAVID IBNALEDirector | 24K | $626K | 0.052% | 2025-12-03 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON4 holders report 5% or more of UCTT in their latest filing, all on Schedule 13G (passive). The largest reported stake is Invesco Ltd. at 7.0% of the class (3,145,489 shares), filed 2026-08-13 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-13 | 13G | Invesco Ltd.parent holding company, investment adviser | 3.1M | 7.0% | 2026-06-30 |
| 2026-08-12 | 13G | Capital World Investorsinvestment adviser | 2.6M | 5.8% | 2026-06-30 |
| 2026-07-31 | 13G | Vanguard Capital Managementinvestment adviser | 2.2M | 5.0% | 2026-06-30 |
| 2026-05-15 | 13G/Ano. 1 | FRONTIER CAPITAL MANAGEMENT CO.,LLCinvestment adviser | 1.8M | 3.9% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 2.8M | 6.2% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 6 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-17 | 13G/Ano. 2 | SHAPIRO CAPITAL MANAGEMENT LLCinvestment adviser | 1.3M | 2.8% | 2025-12-31 |
13F holders
Tracked managers holding UCTT at their latest 13F. JSON7 of the 30 tracked managers held UCTT at their latest 13F, $294.4M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $88.4M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 620K | $88.4M | 0.04% | -563K |
| Two Sigma Investments | 2026-06-30 | 610K | $87.0M | 0.06% | +29K |
| Millennium Management | 2026-06-30 | 388K | $55.4M | 0.02% | -297K |
| AQR Capital Management | 2026-06-30 | 210K | $30.0M | 0.01% | +31K |
| Renaissance Technologies | 2026-06-30 | 92K | $13.1M | 0.02% | new |
| Citadel Advisors | 2026-06-30 | 82K | $11.8M | 0.00% | -57K |
| Point72 Asset Management | 2026-06-30 | 62K | $8.9M | 0.01% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn FY 2025 it generated $65.6M of operating cash flow and spent $3.4M on buybacks. As of 2026-06-26, cash was $255.9M against $599.4M of debt.
- Cash
- $255.9M
- Debt
- $599.4M
- Equity
- $639.8M
- Total assets
- $1.92B
- Shares outstanding
- 45,277,029
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-26 | n/a | $8.7M | n/a | 0.19 |
| Q1 FY 2026 | 2026-03-27 | n/a | -$17.9M | n/a | -0.40 |
| Q4 FY 2025derived | 2025-12-26 | n/a | -$3.3M | n/a | n/a |
| Q3 FY 2025 | 2025-09-26 | n/a | -$10.9M | n/a | -0.24 |
| Q2 FY 2025 | 2025-06-27 | n/a | -$162.0M | n/a | -3.58 |
| Q1 FY 2025 | 2025-03-28 | n/a | -$5.0M | n/a | -0.11 |
| Q4 FY 2024derived | 2024-12-27 | n/a | $16.3M | n/a | n/a |
| Q3 FY 2024 | 2024-09-27 | n/a | -$2.3M | n/a | -0.05 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-26 | n/a | -$181.2M | $65.6M | $50.3M | $3.4M | n/a |
| FY 2024 | 2024-12-27 | $2.10B | $23.7M | $65.0M | $63.5M | $0 | n/a |
| FY 2023 | 2023-12-29 | $1.73B | -$31.1M | $135.9M | $75.8M | $29.4M | n/a |
| FY 2022 | 2022-12-30 | $2.37B | $40.4M | $47.2M | $100.1M | $12.1M | n/a |
| FY 2021 | 2021-12-31 | $2.10B | $119.5M | $211.6M | $59.3M | $0 | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-26; shares outstanding as of 2026-07-29 from the cover page.
What this page is
Ultra Clean Holdings in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Ultra Clean Holdings (UCTT), SEC CIK 1275014, listed on Nasdaq, classified by the SEC as semiconductors & related devices. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-07-02.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-13.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-26.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-03.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-30.JSON and CSV
- Company record
- EDGAR filing index for CIK 1275014Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as semiconductors & related devices
Other company pages
Datasets
Frequently Asked Questions
How much of UCTT is sold short?
3,714,027 shares were held short at the 2026-09-30 settlement, 4.4 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is UCTT's daily short volume?
On 2026-10-23, 188,370 of the 433,362 UCTT shares reported to FINRA were sold short, 43.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does UCTT have fails to deliver?
The SEC's latest file shows 20 UCTT shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are UCTT insiders buying or selling?
No open-market insider trades were reported for UCTT in the last 90 days. The most recent filings are listed below. Latest filing: Xiao Jinsong (Chief Executive Officer) on 2026-09-30.
Have UCTT insiders filed to sell?
14 Form 144 notices on file for UCTT worth $11.9M at the prices reported; 0 in the last 90 days worth $0. Latest: BRIAN HARDING filed on 2026-07-02 to sell 3,837 shares ($494K) from 2026-07-02.
Who owns 5% or more of UCTT?
4 holders report 5% or more of UCTT in their latest filing, all on Schedule 13G (passive). The largest reported stake is Invesco Ltd. at 7.0% of the class (3,145,489 shares), filed 2026-08-13 for an event on 2026-06-30.
What did UCTT report last quarter?
In FY 2025 it generated $65.6M of operating cash flow and spent $3.4M on buybacks. As of 2026-06-26, cash was $255.9M against $599.4M of debt.
Which tracked 13F managers own UCTT?
7 of the 30 tracked 13F managers held UCTT shares at their latest filing, $294.4M in all. The largest: D. E. Shaw & Co. (620K shares, $88.4M), Two Sigma Investments (610K shares, $87.0M), Izzy Englander's Millennium Management (388K shares, $55.4M), Cliff Asness's AQR Capital Management (210K shares, $30.0M), Renaissance Technologies (92K shares, $13.1M), Ken Griffin's Citadel Advisors (82K shares, $11.8M). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.