Millennium Management LLC
· Reduced
Change
−791K
Date
Q1 2026
AM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Millennium Management LLC
· Reduced
Change
−791K
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | – | −791K | – | Q1 2026 | |||||
|
Clarkston Capital Partners, LLC
· Reduced
Change
−590K
Date
Q1 2026
|
Clarkston Capital Partners, LLC | Reduced· Q1 2026 | – | −590K | – | Q1 2026 | |||||
|
Norges
· Exited
Change
−395K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | – | −395K | −100.0% | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· Exited
Change
−232K
Δ Own
−100.0%
Date
Q1 2026
|
Balyasny Asset Management L.P. | Exited· Q1 2026 | – | −232K | −100.0% | Q1 2026 | |||||
|
Holocene Advisors, LP
· Exited
Change
−184K
Δ Own
−100.0%
Date
Q1 2026
|
Holocene Advisors, LP | Exited· Q1 2026 | – | −184K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−166K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −166K | – | Q1 2026 | |||||
|
Boston Partners
· Reduced
Change
−165K
Date
Q1 2026
|
Boston Partners | Reduced· Q1 2026 | – | −165K | – | Q1 2026 | |||||
|
Alyeska Investment Group, L.P.
· Exited
Change
−145K
Δ Own
−100.0%
Date
Q1 2026
|
Alyeska Investment Group, L.P. | Exited· Q1 2026 | – | −145K | −100.0% | Q1 2026 | |||||
|
Ariel Investments, LLC
· Reduced
Change
−118K
Date
Q1 2026
|
Ariel Investments, LLC | Reduced· Q1 2026 | – | −118K | – | Q1 2026 | |||||
|
Concentric Capital Strategies, LP
· Reduced
Change
−90K
Date
Q1 2026
|
Concentric Capital Strategies, LP | Reduced· Q1 2026 | – | −90K | – | Q1 2026 | |||||
|
Aerodigm Wealth, LLC
· Exited
Change
−89K
Δ Own
−100.0%
Date
Q1 2026
|
Aerodigm Wealth, LLC | Exited· Q1 2026 | – | −89K | −100.0% | Q1 2026 | |||||
|
Engineers Gate Manager LP
· Reduced
Change
−72K
Date
Q1 2026
|
Engineers Gate Manager LP | Reduced· Q1 2026 | – | −72K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−72K
Δ Own
−22.6%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −72K | −22.6% | Q1 2026 | |||||
|
T. Rowe Price Associates
· Reduced
Change
−59K
Date
Q1 2026
|
T. Rowe Price Associates | Reduced· Q1 2026 | – | −59K | – | Q1 2026 | |||||
|
Citigroup Inc
· Reduced
Change
−54K
Date
Q1 2026
|
Citigroup Inc | Reduced· Q1 2026 | – | −54K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Palandjian Tracy P.
· Director
2 operations
0
|
Palandjian Tracy P. | Director | 2 operations | $82.07 | 0 | – | 0 | – | Jun 12, 2026 | Jun 15, 2026 | |||||||||
|
Palandjian Tracy P.
· Director
Tax withholding or exercise payment (F)
-$243K
|
Palandjian Tracy P. | Director | Tax withholding or exercise payment (F) | $354.62 | -685 | -$243K | 18K | – | Jun 12, 2026 | Jun 15, 2026 | |||||||||
|
Horgen Jay C.
· Director
Sell
−$5.9M
|
Horgen Jay C. | Director | Sell | $338.27 | −18K | −$5.9M | 205K | – | Jun 8, 2026 | Jun 8, 2026 | |||||||||
|
Horgen Jay C.
· Director
2 operations
0
|
Horgen Jay C. | Director | 2 operations | $74.49 | 0 | – | 0 | – | Jun 8, 2026 | Jun 8, 2026 | |||||||||
|
Horgen Jay C.
· Director
Tax withholding or exercise payment (F)
-$13M
|
Horgen Jay C. | Director | Tax withholding or exercise payment (F) | $336.62 | -40K | -$13M | 222K | – | Jun 8, 2026 | Jun 8, 2026 | |||||||||
|
Franqui Annette
· Director
Buy
+$229K
|
Franqui Annette | Director | Buy | $304.88 | +750 | +$229K | 2K | – | Jun 1, 2026 | Jun 3, 2026 | |||||||||
|
Matos Rodriguez Felix V
· Director
Sell
−$300K
|
Matos Rodriguez Felix V | Director | Sell | $300.18 | −1K | −$300K | 4K | – | May 8, 2026 | May 8, 2026 | |||||||||
|
Ryan David Christopher
· Director
Sell
−$1.0M
|
Ryan David Christopher | Director | Sell | $305.06 | −3K | −$1.0M | 1K | – | May 6, 2026 | May 8, 2026 | |||||||||
|
Cates G. Staley
· Director
Buy
+$459K
|
Cates G. Staley | Director | Buy | $305.83 | +2K | +$459K | 6K | – | May 6, 2026 | May 6, 2026 | |||||||||
|
Cates G. Staley
· Director
Grant (A)
172
|
Cates G. Staley | Director | Grant (A) | – | 172 | – | 172 | – | May 1, 2026 | May 5, 2026 | |||||||||
|
Padiyar Kavita
· Officer
Sell
−$612K
|
Padiyar Kavita | Officer | Sell | $278.24 | −2K | −$612K | 43K | – | Mar 9, 2026 | Mar 9, 2026 | |||||||||
|
Wojcik Thomas M.
· Officer
Sell
−$2.3M
|
Wojcik Thomas M. | Officer | Sell | $286.30 | −8K | −$2.3M | 159K | – | Mar 6, 2026 | Mar 9, 2026 | |||||||||
|
Wojcik Thomas M.
· Officer
2 operations
0
|
Wojcik Thomas M. | Officer | 2 operations | – | 0 | – | 10K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Wojcik Thomas M.
· Officer
Tax withholding or exercise payment (F)
-$2.7M
|
Wojcik Thomas M. | Officer | Tax withholding or exercise payment (F) | $299.18 | -9K | -$2.7M | 167K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Wojcik Thomas M.
· Officer
Grant (A)
11K
|
Wojcik Thomas M. | Officer | Grant (A) | – | 11K | – | 177K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
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478 reporting institutions disclosed AMG 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.