Mitsui Sumitomo Insurance Co Ltd
· Added
+$568M
Change
+8.3M
Date
Q1 2026
WR
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mitsui Sumitomo Insurance Co Ltd
· Added
+$568M
Change
+8.3M
Date
Q1 2026
|
Mitsui Sumitomo Insurance Co Ltd | Added· Q1 2026 | +$568M | +8.3M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
+$88M
Change
+1.3M
Δ Own
+1142.0%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | +$88M | +1.3M | +1142.0% | Q1 2026 | |||||
|
Jones Financial Companies Lllp
· Added
+$78M
Change
+1.1M
Date
Q1 2026
|
Jones Financial Companies Lllp | Added· Q1 2026 | +$78M | +1.1M | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
+$69M
Change
+997K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | +$69M | +997K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
+$42M
Change
+614K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | +$42M | +614K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
+$38M
Change
+551K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | +$38M | +551K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
+$29M
Change
+424K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | +$29M | +424K | – | Q1 2026 | |||||
|
First Trust Advisors LP
· Added
+$26M
Change
+378K
Date
Q1 2026
|
First Trust Advisors LP | Added· Q1 2026 | +$26M | +378K | – | Q1 2026 | |||||
|
Tudor Investment Corp Et Al
· Added
+$24M
Change
+351K
Date
Q1 2026
|
Tudor Investment Corp Et Al | Added· Q1 2026 | +$24M | +351K | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Added
+$22M
Change
+314K
Date
Q1 2026
|
JPMorgan Chase & Co | Added· Q1 2026 | +$22M | +314K | – | Q1 2026 | |||||
|
Deutsche Bank AG
· Added
+$19M
Change
+278K
Date
Q1 2026
|
Deutsche Bank AG | Added· Q1 2026 | +$19M | +278K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$17M
Change
+246K
Δ Own
+928.1%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$17M | +246K | +928.1% | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· New
+$14M
Change
+201K
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | New· Q1 2026 | +$14M | +201K | – | Q1 2026 | |||||
|
Natixis Advisors, LLC
· Added
+$13M
Change
+189K
Date
Q1 2026
|
Natixis Advisors, LLC | Added· Q1 2026 | +$13M | +189K | – | Q1 2026 | |||||
|
Barclays PLC
· Added
+$13M
Change
+182K
Date
Q1 2026
|
Barclays PLC | Added· Q1 2026 | +$13M | +182K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Berkley William R.
· Director
Grant (A)
3K
|
Berkley William R. | Director | Grant (A) | – | 3K | – | 17.4M | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Ferre Maria Luisa
· Director
Grant (A)
3K
|
Ferre Maria Luisa | Director | Grant (A) | – | 3K | – | 59K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Mattson Marie Angela
· Director
Grant (A)
3K
|
Mattson Marie Angela | Director | Grant (A) | – | 3K | – | 10K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Berkley William R. Jr
· Director
Grant (A)
3K
|
Berkley William R. Jr | Director | Grant (A) | – | 3K | – | 4.6M | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Mosley Daniel Lynn
· Director
Grant (A)
3K
|
Mosley Daniel Lynn | Director | Grant (A) | – | 3K | – | 15K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Farrell Mary C.
· Director
Grant (A)
3K
|
Farrell Mary C. | Director | Grant (A) | – | 3K | – | 19K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Rusbuldt Robert Alan
· Director
Grant (A)
3K
|
Rusbuldt Robert Alan | Director | Grant (A) | – | 3K | – | 6K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Augostini Christopher L.
· Director
Grant (A)
3K
|
Augostini Christopher L. | Director | Grant (A) | – | 3K | – | 110K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Blaylock Ronald E.
· Director
Grant (A)
3K
|
Blaylock Ronald E. | Director | Grant (A) | – | 3K | – | 122K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Talisman Jonathan
· Director
Grant (A)
3K
|
Talisman Jonathan | Director | Grant (A) | – | 3K | – | 33K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Mitsui Sumitomo Insurance Co Ltd
· 10% Owner
2 operations
+$8.1M
|
Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2 operations | $71.60–$72.52 | +112K | +$8.1M | 58.7M | – | Mar 3, 2026 | Mar 3, 2026 | |||||||||
|
Mitsui Sumitomo Insurance Co Ltd
· 10% Owner
2 operations
+$11M
|
Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2 operations | $72.29–$73.20 | +146K | +$11M | 58.6M | – | Mar 2, 2026 | Mar 3, 2026 | |||||||||
|
Mitsui Sumitomo Insurance Co Ltd
· 10% Owner
Buy
+$11M
|
Mitsui Sumitomo Insurance Co Ltd | 10% Owner | Buy | $71.63 | +147K | +$11M | 58.5M | – | Feb 27, 2026 | Feb 27, 2026 | |||||||||
|
Mitsui Sumitomo Insurance Co Ltd
· 10% Owner
2 operations
+$11M
|
Mitsui Sumitomo Insurance Co Ltd | 10% Owner | 2 operations | $71.65–$72.11 | +153K | +$11M | 58.4M | – | Feb 26, 2026 | Feb 27, 2026 | |||||||||
|
Ms&ad Insurance Group Holdings, Inc.
· 10% Owner
2 operations
+$12M
|
Ms&ad Insurance Group Holdings, Inc. | 10% Owner | 2 operations | $71.39–$71.77 | +169K | +$12M | 58.2M | – | Feb 25, 2026 | Feb 25, 2026 | |||||||||
N
A
M
G
A
A
858 reporting institutions disclosed WRB 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.