Berkshire Hathaway Inc
· Exited
−$158M
Change
−1.2M
Δ Own
−100.0%
Date
Q1 2026
LA
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Berkshire Hathaway Inc
· Exited
−$158M
Change
−1.2M
Δ Own
−100.0%
Date
Q1 2026
|
Berkshire Hathaway Inc | Exited· Q1 2026 | −$158M | −1.2M | −100.0% | Q1 2026 | |||||
|
Norges
· Exited
−$108M
Change
−827K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$108M | −827K | −100.0% | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Reduced
−$101M
Change
−775K
Date
Q1 2026
|
Janus Henderson Group PLC | Reduced· Q1 2026 | −$101M | −775K | – | Q1 2026 | |||||
|
59 North Capital Management, LP
· Reduced
−$52M
Change
−400K
Date
Q1 2026
|
59 North Capital Management, LP | Reduced· Q1 2026 | −$52M | −400K | – | Q1 2026 | |||||
|
Deutsche Bank AG
· Reduced
−$40M
Change
−309K
Date
Q1 2026
|
Deutsche Bank AG | Reduced· Q1 2026 | −$40M | −309K | – | Q1 2026 | |||||
|
Victory Capital Management Inc
· Reduced
−$29M
Change
−222K
Date
Q1 2026
|
Victory Capital Management Inc | Reduced· Q1 2026 | −$29M | −222K | – | Q1 2026 | |||||
|
Tudor Investment Corp Et Al
· Reduced
−$19M
Change
−143K
Date
Q1 2026
|
Tudor Investment Corp Et Al | Reduced· Q1 2026 | −$19M | −143K | – | Q1 2026 | |||||
|
Voloridge Investment Management, LLC
· Reduced
−$16M
Change
−124K
Date
Q1 2026
|
Voloridge Investment Management, LLC | Reduced· Q1 2026 | −$16M | −124K | – | Q1 2026 | |||||
|
Exoduspoint Capital Management, LP
· Exited
−$16M
Change
−122K
Δ Own
−100.0%
Date
Q1 2026
|
Exoduspoint Capital Management, LP | Exited· Q1 2026 | −$16M | −122K | −100.0% | Q1 2026 | |||||
|
Makaira Partners LLC
· Exited
−$16M
Change
−120K
Δ Own
−100.0%
Date
Q1 2026
|
Makaira Partners LLC | Exited· Q1 2026 | −$16M | −120K | −100.0% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
−$15M
Change
−111K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | −$15M | −111K | −100.0% | Q1 2026 | |||||
|
Boston Partners
· Reduced
−$13M
Change
−99K
Date
Q1 2026
|
Boston Partners | Reduced· Q1 2026 | −$13M | −99K | – | Q1 2026 | |||||
|
Massachusetts Financial Services Co
· Reduced
−$12M
Change
−89K
Date
Q1 2026
|
Massachusetts Financial Services Co | Reduced· Q1 2026 | −$12M | −89K | – | Q1 2026 | |||||
|
Russell Investments Group, Ltd.
· Reduced
−$10M
Change
−77K
Date
Q1 2026
|
Russell Investments Group, Ltd. | Reduced· Q1 2026 | −$10M | −77K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Exited
−$9.4M
Change
−72K
Δ Own
−100.0%
Date
Q1 2026
|
Jane Street Group, LLC | Exited· Q1 2026 | −$9.4M | −72K | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Reifenheiser Thomas V
· Director
Gift (G)
−328
|
Reifenheiser Thomas V | Director | Gift (G) | – | −328 | – | 44K | −0.7% | Jun 23, 2026 | Jun 24, 2026 | |||||||||
|
Reilly Anna
· Director
Grant (A)
485
|
Reilly Anna | Director | Grant (A) | – | 485 | – | 148K | – | Jun 12, 2026 | Jun 15, 2026 | |||||||||
|
Landrieu Mitchell
· Director
Grant (A)
542
|
Landrieu Mitchell | Director | Grant (A) | – | 542 | – | 1K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Reifenheiser Thomas V
· Director
Grant (A)
542
|
Reifenheiser Thomas V | Director | Grant (A) | – | 542 | – | 45K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Fletcher Nancy
· Director
Grant (A)
644
|
Fletcher Nancy | Director | Grant (A) | – | 644 | – | 7K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Koerner John E. III
· Director
Grant (A)
644
|
Koerner John E. III | Director | Grant (A) | – | 644 | – | 34K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Reilly Wendell
· Director
Grant (A)
508
|
Reilly Wendell | Director | Grant (A) | – | 508 | – | 8K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Thompson Elizabeth Mary
· Director
Grant (A)
542
|
Thompson Elizabeth Mary | Director | Grant (A) | – | 542 | – | 6K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Loeb Marshall A.
· Director
Grant (A)
542
|
Loeb Marshall A. | Director | Grant (A) | – | 542 | – | 6K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Mumblow Stephen P.
· Director
Grant (A)
678
|
Mumblow Stephen P. | Director | Grant (A) | – | 678 | – | 9K | – | May 14, 2026 | May 18, 2026 | |||||||||
|
Johnson Jay Lecoryelle
· Officer
Sell
−$1.6M
|
Johnson Jay Lecoryelle | Officer | Sell | $157.02 | −10K | −$1.6M | 0 | – | May 11, 2026 | May 12, 2026 | |||||||||
|
Reilly Ross Lamar
· Officer
Sell
−$768K
|
Reilly Ross Lamar | Officer | Sell | $128.65 | −6K | −$768K | 16K | – | Mar 23, 2026 | Mar 25, 2026 | |||||||||
|
Reilly Ross Lamar
· Officer
2 operations
$0
|
Reilly Ross Lamar | Officer | 2 operations | $65.82 | 0 | $0 | 0 | – | Mar 23, 2026 | Mar 25, 2026 | |||||||||
|
Reilly Ross Lamar
· Officer
Grant (A)
24K
|
Reilly Ross Lamar | Officer | Grant (A) | – | 24K | – | 24K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
|
Johnson Jay Lecoryelle
· Officer
Grant (A)
34K
|
Johnson Jay Lecoryelle | Officer | Grant (A) | – | 34K | – | 34K | – | Mar 10, 2026 | Mar 12, 2026 | |||||||||
N
A
M
M
G
A
622 reporting institutions disclosed LAMR 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.