OS
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
FMR LLC
· Added
+$86M
Change
+310K
Δ Own
+18.7%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | +$86M | +310K | +18.7% | Q1 2026 | |||||
|
Channing Capital Management, LLC
· New
+$74M
Change
+267K
Date
Q1 2026
|
Channing Capital Management, LLC | New· Q1 2026 | +$74M | +267K | – | Q1 2026 | |||||
|
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 | |||||
|
Mirae Asset Global Etfs Holdings Ltd.
· Added
+$19M
Change
+69K
Date
Q1 2026
|
Mirae Asset Global Etfs Holdings Ltd. | Added· Q1 2026 | +$19M | +69K | – | Q1 2026 | |||||
|
UBS AM
· Reduced
−$19M
Change
−68K
Date
Q1 2026
|
UBS AM | Reduced· Q1 2026 | −$19M | −68K | – | Q1 2026 | |||||
|
Mirova
· New
+$18M
Change
+65K
Date
Q1 2026
|
Mirova | New· Q1 2026 | +$18M | +65K | – | Q1 2026 | |||||
|
New York State Common Retirement Fund
· Added
+$15M
Change
+55K
Date
Q1 2026
|
New York State Common Retirement Fund | Added· Q1 2026 | +$15M | +55K | – | Q1 2026 | |||||
|
Capital International Investors
· Reduced
−$15M
Change
−55K
Date
Q1 2026
|
Capital International Investors | Reduced· Q1 2026 | −$15M | −55K | – | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Added
+$15M
Change
+54K
Date
Q1 2026
|
Ameriprise Financial Inc | Added· Q1 2026 | +$15M | +54K | – | 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 | |||||
|
BNP Paribas Financial Markets
· Added
+$14M
Change
+51K
Date
Q1 2026
|
BNP Paribas Financial Markets | Added· Q1 2026 | +$14M | +51K | – | Q1 2026 | |||||
|
Segall Bryant & Hamill, LLC
· New
+$13M
Change
+48K
Date
Q1 2026
|
Segall Bryant & Hamill, LLC | New· Q1 2026 | +$13M | +48K | – | 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 | |||||||||
|
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 | |||||||||
|
Mehra Ajay
· Director
Grant (A)
$11K
|
Mehra Ajay | Director | Grant (A) | $140.61 | 75 | $11K | 98K | +0.1% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Chopra Deepak
· Director
Sell
−$5.6M
|
Chopra Deepak | Director | Sell | $281.84 | −20K | −$5.6M | 253K | – | May 4, 2026 | May 5, 2026 | |||||||||
|
Constantine W. Paul
· Officer
Tax withholding or exercise payment (F)
-$19K
|
Constantine W. Paul | Officer | Tax withholding or exercise payment (F) | $292.52 | -65 | -$19K | 1K | – | Apr 23, 2026 | Apr 24, 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.