Jones Hill Capital LP
· New
Change
+1.6M
Date
Q1 2026
AM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jones Hill Capital LP
· New
Change
+1.6M
Date
Q1 2026
|
Jones Hill Capital LP | New· Q1 2026 | – | +1.6M | – | Q1 2026 | |||||
|
Siren, L.L.C.
· New
Change
+1.2M
Date
Q1 2026
|
Siren, L.L.C. | New· Q1 2026 | – | +1.2M | – | Q1 2026 | |||||
|
Adage Capital Partners Gp, L.L.C.
· Added
Change
+784K
Date
Q1 2026
|
Adage Capital Partners Gp, L.L.C. | Added· Q1 2026 | – | +784K | – | Q1 2026 | |||||
|
Barclays PLC
· Added
Change
+677K
Date
Q1 2026
|
Barclays PLC | Added· Q1 2026 | – | +677K | – | Q1 2026 | |||||
|
Jupiter Asset Management Ltd
· Added
Change
+577K
Date
Q1 2026
|
Jupiter Asset Management Ltd | Added· Q1 2026 | – | +577K | – | Q1 2026 | |||||
|
Sofinnova Investments, Inc.
· Exited
Change
−527K
Δ Own
−100.0%
Date
Q1 2026
|
Sofinnova Investments, Inc. | Exited· Q1 2026 | – | −527K | −100.0% | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Added
Change
+520K
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +520K | – | Q1 2026 | |||||
|
Silverarc Capital Management, LLC
· Exited
Change
−506K
Δ Own
−100.0%
Date
Q1 2026
|
Silverarc Capital Management, LLC | Exited· Q1 2026 | – | −506K | −100.0% | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Exited
Change
−502K
Δ Own
−100.0%
Date
Q1 2026
|
Ameriprise Financial Inc | Exited· Q1 2026 | – | −502K | −100.0% | Q1 2026 | |||||
|
Patient Square Capital LP
· Exited
Change
−350K
Δ Own
−100.0%
Date
Q1 2026
|
Patient Square Capital LP | Exited· Q1 2026 | – | −350K | −100.0% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−328K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −328K | −100.0% | Q1 2026 | |||||
|
Ia Global Asset Management Inc.
· New
Change
+305K
Date
Q1 2026
|
Ia Global Asset Management Inc. | New· Q1 2026 | – | +305K | – | Q1 2026 | |||||
|
Nantahala Capital Management, LLC
· Reduced
Change
−300K
Date
Q1 2026
|
Nantahala Capital Management, LLC | Reduced· Q1 2026 | – | −300K | – | Q1 2026 | |||||
|
State Street
· Added
Change
+293K
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +293K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+289K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +289K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mazzariello Gina
· Officer
Sell
−$264K
|
Mazzariello Gina | Officer | Sell | $17.61 | −15K | −$264K | 179K | −7.7% | Jul 10, 2026 | Jul 13, 2026 | |||||||||
|
Mazzariello Gina
· Officer
Sell
−$275K
|
Mazzariello Gina | Officer | Sell | $18.32 | −15K | −$275K | 194K | −7.2% | Jul 9, 2026 | Jul 13, 2026 | |||||||||
|
Zeiher Bernhardt G.
· Director
Grant (A)
24K
|
Zeiher Bernhardt G. | Director | Grant (A) | – | 24K | – | 24K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Firestone Karen
· Director
Grant (A)
24K
|
Firestone Karen | Director | Grant (A) | – | 24K | – | 24K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Quimi Daphne
· Director
Grant (A)
24K
|
Quimi Daphne | Director | Grant (A) | – | 24K | – | 24K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Milne George M. Jr
· Director
Grant (A)
24K
|
Milne George M. Jr | Director | Grant (A) | – | 24K | – | 24K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Fonteyne Paul R.
· Director
Grant (A)
24K
|
Fonteyne Paul R. | Director | Grant (A) | – | 24K | – | 24K | – | Jun 4, 2026 | Jun 8, 2026 | |||||||||
|
Firestone Karen
· Director
Buy
+$51K
|
Firestone Karen | Director | Buy | $13.51 | +4K | +$51K | 67K | – | May 21, 2026 | May 26, 2026 | |||||||||
|
Cohen Joshua B.
· Director
2 operations
622K
|
Cohen Joshua B. | Director | 2 operations | – | 622K | – | 373K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Mazzariello Gina
· Officer
2 operations
187K
|
Mazzariello Gina | Officer | 2 operations | – | 187K | – | 112K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Frates James M.
· Officer
2 operations
240K
|
Frates James M. | Officer | 2 operations | – | 240K | – | 144K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Klee Justin B.
· Director, Officer
2 operations
622K
|
Klee Justin B. | Director, Officer | 2 operations | – | 622K | – | 373K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Bedrosian Camille L.
· Officer
2 operations
240K
|
Bedrosian Camille L. | Officer | 2 operations | – | 240K | – | 144K | – | Mar 5, 2026 | Mar 9, 2026 | |||||||||
|
Klee Justin B.
· Director, Officer
Sell
−$424K
|
Klee Justin B. | Director, Officer | Sell | $14.47 | −29K | −$424K | 3.3M | – | Mar 2, 2026 | Mar 4, 2026 | |||||||||
|
Cohen Joshua B.
· Director, Officer
Sell
−$424K
|
Cohen Joshua B. | Director, Officer | Sell | $14.48 | −29K | −$424K | 3.3M | – | Mar 2, 2026 | Mar 4, 2026 | |||||||||
N
A
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171 reporting institutions disclosed AMLX 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.