OS
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
UBS Group AG
· Reduced
−$50M
Change
−180K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | −$50M | −180K | – | Q1 2026 | |||||
|
Mawer Investment Management Ltd.
· Reduced
−$39M
Change
−141K
Date
Q1 2026
|
Mawer Investment Management Ltd. | Reduced· Q1 2026 | −$39M | −141K | – | Q1 2026 | |||||
|
Driehaus Capital Management LLC
· Reduced
−$33M
Change
−118K
Date
Q1 2026
|
Driehaus Capital Management LLC | Reduced· Q1 2026 | −$33M | −118K | – | Q1 2026 | |||||
|
Brown Advisory Inc
· Reduced
−$20M
Change
−73K
Date
Q1 2026
|
Brown Advisory Inc | Reduced· Q1 2026 | −$20M | −73K | – | Q1 2026 | |||||
|
UBS AM
· Reduced
−$19M
Change
−68K
Date
Q1 2026
|
UBS AM | Reduced· Q1 2026 | −$19M | −68K | – | Q1 2026 | |||||
|
Capital International Investors
· Reduced
−$15M
Change
−55K
Date
Q1 2026
|
Capital International Investors | Reduced· Q1 2026 | −$15M | −55K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
−$14M
Change
−52K
Δ Own
−12.2%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | −$14M | −52K | −12.2% | Q1 2026 | |||||
|
Van Eck Associates Corp
· Reduced
−$11M
Change
−39K
Date
Q1 2026
|
Van Eck Associates Corp | Reduced· Q1 2026 | −$11M | −39K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Reduced
−$9.2M
Change
−33K
Date
Q1 2026
|
Goldman Sachs Group Inc | Reduced· Q1 2026 | −$9.2M | −33K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$8.9M
Change
−32K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$8.9M | −32K | – | Q1 2026 | |||||
|
Citigroup Inc
· Reduced
−$8.3M
Change
−30K
Date
Q1 2026
|
Citigroup Inc | Reduced· Q1 2026 | −$8.3M | −30K | – | Q1 2026 | |||||
|
Nomura Asset Management International Inc.
· Reduced
−$7.6M
Change
−27K
Date
Q1 2026
|
Nomura Asset Management International Inc. | Reduced· Q1 2026 | −$7.6M | −27K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Exited
−$6.7M
Change
−24K
Δ Own
−100.0%
Date
Q1 2026
|
Jane Street Group, LLC | Exited· Q1 2026 | −$6.7M | −24K | −100.0% | Q1 2026 | |||||
|
Vanguard
· Reduced
−$6.6M
Change
−24K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | −$6.6M | −24K | – | Q1 2026 | |||||
|
Primecap Management Co
· Reduced
−$6.4M
Change
−23K
Date
Q1 2026
|
Primecap Management Co | Reduced· Q1 2026 | −$6.4M | −23K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Bernard Kelli
· Director
Grant (A)
$200K
|
Bernard Kelli | Director | Grant (A) | $216.65 | 924 | $200K | 11K | +9.0% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Chizever Gerald M.
· Director
Grant (A)
$200K
|
Chizever Gerald M. | Director | Grant (A) | $216.65 | 924 | $200K | 4K | +33.5% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Hawkins James B.
· Director
Grant (A)
$200K
|
Hawkins James B. | Director | Grant (A) | $216.65 | 924 | $200K | 6K | +19.3% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Ballhaus William Francis Jr
· Director
Grant (A)
$200K
|
Ballhaus William Francis Jr | Director | Grant (A) | $216.65 | 924 | $200K | 4K | +29.1% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Chopra Deepak
· Director
Grant (A)
$200K
|
Chopra Deepak | Director | Grant (A) | $216.65 | 924 | $200K | 254K | +0.4% | Jul 20, 2026 | Jul 21, 2026 | |||||||||
|
Hawkins James B.
· Director
Tax withholding or exercise payment (F)
-$51K
|
Hawkins James B. | Director | Tax withholding or exercise payment (F) | $221.76 | -231 | -$51K | 5K | −4.6% | Jul 6, 2026 | Jul 7, 2026 | |||||||||
|
Chizever Gerald M.
· Director
Tax withholding or exercise payment (F)
-$51K
|
Chizever Gerald M. | Director | Tax withholding or exercise payment (F) | $221.76 | -231 | -$51K | 3K | −7.7% | Jul 6, 2026 | Jul 7, 2026 | |||||||||
|
Bernard Kelli
· Director
Tax withholding or exercise payment (F)
-$45K
|
Bernard Kelli | Director | Tax withholding or exercise payment (F) | $221.76 | -202 | -$45K | 10K | −1.9% | Jul 6, 2026 | Jul 7, 2026 | |||||||||
|
Constantine W. Paul
· Officer
Grant (A)
$10K
|
Constantine W. Paul | Officer | Grant (A) | $185.90 | 55 | $10K | 1K | +4.0% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Sze Victor S.
· Officer
Grant (A)
$11K
|
Sze Victor S. | Officer | Grant (A) | $140.61 | 75 | $11K | 87K | +0.1% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Morben Paul Keith
· Officer
Grant (A)
$11K
|
Morben Paul Keith | Officer | Grant (A) | $140.61 | 75 | $11K | 9K | +0.9% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Tropeano Michael
· Officer
Grant (A)
$11K
|
Tropeano Michael | Officer | Grant (A) | $140.61 | 75 | $11K | 4K | +2.1% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Grindstaff Glenn
· Officer
Grant (A)
$3K
|
Grindstaff Glenn | Officer | Grant (A) | $185.90 | 17 | $3K | 9K | +0.2% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Okawa Cary M.
· Officer
Grant (A)
$5K
|
Okawa Cary M. | Officer | Grant (A) | $185.90 | 28 | $5K | 3K | +0.8% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Edrick Alan I.
· Officer
Grant (A)
$11K
|
Edrick Alan I. | Officer | Grant (A) | $140.61 | 75 | $11K | 296K | 0.0% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
341 reporting institutions disclosed OSIS 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.