UC
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Invesco Ltd.
· Reduced
−$89M
Change
−1.7M
Δ Own
−51.2%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | −$89M | −1.7M | −51.2% | Q1 2026 | |||||
|
Boston Partners
· New
+$75M
Change
+1.5M
Date
Q1 2026
|
Boston Partners | New· Q1 2026 | +$75M | +1.5M | – | Q1 2026 | |||||
|
Shapiro Capital Management LLC
· Exited
−$65M
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Shapiro Capital Management LLC | Exited· Q1 2026 | −$65M | −1.3M | −100.0% | Q1 2026 | |||||
|
Driehaus Capital Management LLC
· Added
+$31M
Change
+609K
Date
Q1 2026
|
Driehaus Capital Management LLC | Added· Q1 2026 | +$31M | +609K | – | Q1 2026 | |||||
|
Cooper Creek Partners Management LLC
· New
+$30M
Change
+587K
Date
Q1 2026
|
Cooper Creek Partners Management LLC | New· Q1 2026 | +$30M | +587K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· New
+$30M
Change
+581K
Date
Q1 2026
|
Two Sigma Investments, LP | New· Q1 2026 | +$30M | +581K | – | Q1 2026 | |||||
|
Divisar Capital Management LLC
· Reduced
−$27M
Change
−529K
Date
Q1 2026
|
Divisar Capital Management LLC | Reduced· Q1 2026 | −$27M | −529K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
−$26M
Change
−513K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | −$26M | −513K | – | Q1 2026 | |||||
|
Fuller & Thaler Asset Management, Inc.
· Added
+$24M
Change
+462K
Date
Q1 2026
|
Fuller & Thaler Asset Management, Inc. | Added· Q1 2026 | +$24M | +462K | – | Q1 2026 | |||||
|
SG Americas Securities, LLC
· Added
+$23M
Change
+440K
Date
Q1 2026
|
SG Americas Securities, LLC | Added· Q1 2026 | +$23M | +440K | – | Q1 2026 | |||||
|
Nomura Asset Management International Inc.
· New
+$21M
Change
+413K
Date
Q1 2026
|
Nomura Asset Management International Inc. | New· Q1 2026 | +$21M | +413K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
+$19M
Change
+379K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | +$19M | +379K | – | Q1 2026 | |||||
|
Ion Fund Management Ltd
· New
+$18M
Change
+350K
Date
Q1 2026
|
Ion Fund Management Ltd | New· Q1 2026 | +$18M | +350K | – | Q1 2026 | |||||
|
Royce & Associates LP
· Reduced
−$17M
Change
−339K
Date
Q1 2026
|
Royce & Associates LP | Reduced· Q1 2026 | −$17M | −339K | – | Q1 2026 | |||||
|
Russell Investments Group, Ltd.
· Added
+$15M
Change
+295K
Date
Q1 2026
|
Russell Investments Group, Ltd. | Added· Q1 2026 | +$15M | +295K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Harding Brian E.
· Officer
3 operations
−$494K
|
Harding Brian E. | Officer | 3 operations | $126.92–$130.12 | −4K | −$494K | 34K | −10.3% | Jul 2, 2026 | Jul 7, 2026 | |||||||||
|
Harding Brian E.
· Officer
Grant (A)
9K
|
Harding Brian E. | Officer | Grant (A) | – | 9K | – | 37K | +33.4% | Jun 26, 2026 | Jun 30, 2026 | |||||||||
|
Savage Sheri
· CFO
46 operations
−$2.7M
|
Savage Sheri | CFO | 46 operations | $85.54–$91.78 | −30K | −$2.7M | 66K | – | Jun 4, 2026 | Jun 9, 2026 | |||||||||
|
Harding Brian E.
· Officer
22 operations
−$1.5M
|
Harding Brian E. | Officer | 22 operations | $85.86–$91.65 | −17K | −$1.5M | 28K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Cho Paul Yoonku
· Officer
Sell
−$84K
|
Cho Paul Yoonku | Officer | Sell | $89.37 | −944 | −$84K | 23K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Liggett Emily M.
· Director
Sell
−$756K
|
Liggett Emily M. | Director | Sell | $92.18 | −8K | −$756K | 38K | – | May 27, 2026 | May 27, 2026 | |||||||||
|
Cook Christopher S.
· Officer
Grant (A)
13K
|
Cook Christopher S. | Officer | Grant (A) | – | 13K | – | 111K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Cho Paul Yoonku
· Officer
Grant (A)
8K
|
Cho Paul Yoonku | Officer | Grant (A) | – | 8K | – | 24K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Xiao Jinsong
· CEO
Grant (A)
31K
|
Xiao Jinsong | CEO | Grant (A) | – | 31K | – | 149K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Solomon Joanne
· Director
Grant (A)
3K
|
Solomon Joanne | Director | Grant (A) | – | 3K | – | 12K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
McKibben Jeffrey L.
· Officer
Grant (A)
6K
|
McKibben Jeffrey L. | Officer | Grant (A) | – | 6K | – | 17K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Seto Jacqueline A.
· Director
Grant (A)
3K
|
Seto Jacqueline A. | Director | Grant (A) | – | 3K | – | 32K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Palfrey Jamie J.
· Officer
Grant (A)
10K
|
Palfrey Jamie J. | Officer | Grant (A) | – | 10K | – | 26K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Maddock Ernest E.
· Director
Grant (A)
3K
|
Maddock Ernest E. | Director | Grant (A) | – | 3K | – | 48K | – | May 22, 2026 | May 27, 2026 | |||||||||
|
Wunar Robert Anthony
· Officer
Grant (A)
11K
|
Wunar Robert Anthony | Officer | Grant (A) | – | 11K | – | 11K | – | May 22, 2026 | May 27, 2026 | |||||||||
306 reporting institutions disclosed UCTT position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.