Thomist Capital Management, LP
· Reduced
Change
−3.0M
Date
Q1 2026
AM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Thomist Capital Management, LP
· Reduced
Change
−3.0M
Date
Q1 2026
|
Thomist Capital Management, LP | Reduced· Q1 2026 | – | −3.0M | – | Q1 2026 | |||||
|
Cdc Financial, Inc.
· Reduced
Change
−1.0M
Date
Q1 2026
|
Cdc Financial, Inc. | Reduced· Q1 2026 | – | −1.0M | – | Q1 2026 | |||||
|
Caption Management, LLC
· New
Change
+874K
Date
Q1 2026
|
Caption Management, LLC | New· Q1 2026 | – | +874K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· New
Change
+864K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | New· Q1 2026 | – | +864K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Added
Change
+692K
Date
Q1 2026
|
Acadian Asset Management LLC | Added· Q1 2026 | – | +692K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
Change
−448K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | – | −448K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Added
Change
+444K
Date
Q1 2026
|
Susquehanna International Group, LLP | Added· Q1 2026 | – | +444K | – | Q1 2026 | |||||
|
Walleye Capital LLC
· Reduced
Change
−421K
Date
Q1 2026
|
Walleye Capital LLC | Reduced· Q1 2026 | – | −421K | – | Q1 2026 | |||||
|
Bank of America Corp
· Reduced
Change
−403K
Date
Q1 2026
|
Bank of America Corp | Reduced· Q1 2026 | – | −403K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+341K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +341K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Added
Change
+302K
Date
Q1 2026
|
Marshall Wace, LLP | Added· Q1 2026 | – | +302K | – | Q1 2026 | |||||
|
De Lisle Partners LLP
· New
Change
+265K
Date
Q1 2026
|
De Lisle Partners LLP | New· Q1 2026 | – | +265K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· New
Change
+240K
Date
Q1 2026
|
Qube Research & Technologies Ltd | New· Q1 2026 | – | +240K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+228K
Δ Own
+190.1%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +228K | +190.1% | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
Change
+216K
Δ Own
+203.5%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +216K | +203.5% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Perga Capital Partners, LP
· Other
Other Form 4 event (S, derivative)
-$55
|
Perga Capital Partners, LP | Other | Other Form 4 event (S, derivative) | $0.11 | -500 | -$55 | 5K | – | Jul 6, 2026 | Jul 14, 2026 | |||||||||
|
Coghill Clint D.
· Director
2 operations
0
|
Coghill Clint D. | Director | 2 operations | – | 0 | – | 0 | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Coghill Clint D.
· Director
Grant (A)
31K
|
Coghill Clint D. | Director | Grant (A) | – | 31K | – | 31K | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Hamm Christopher W.
· Director
2 operations
0
|
Hamm Christopher W. | Director | 2 operations | – | 0 | – | 0 | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Hamm Christopher W.
· Director
Grant (A)
44K
|
Hamm Christopher W. | Director | Grant (A) | – | 44K | – | 44K | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Adams Deborah G.
· Director
Exercise or conversion (M/X/C)
36K
|
Adams Deborah G. | Director | Exercise or conversion (M/X/C) | – | 36K | – | 118K | +44.7% | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Adams Deborah G.
· Director
Grant (A)
31K
|
Adams Deborah G. | Director | Grant (A) | – | 31K | – | 31K | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Snyder Todd R.
· Director
2 operations
0
|
Snyder Todd R. | Director | 2 operations | – | 0 | – | 0 | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Snyder Todd R.
· Director
Grant (A)
31K
|
Snyder Todd R. | Director | Grant (A) | – | 31K | – | 31K | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Frew James
· Officer
Buy
+$99K
|
Frew James | Officer | Buy | $3.95 | +25K | +$99K | 217K | +13.0% | Jun 23, 2026 | Jun 23, 2026 | |||||||||
|
Coghill Clint D.
· Director
Sell
−$1.5M
|
Coghill Clint D. | Director | Sell | $6.31 | −242K | −$1.5M | 2.5M | – | Mar 17, 2026 | Mar 17, 2026 | |||||||||
|
Coghill Clint D.
· Director
Sell
−$3.2M
|
Coghill Clint D. | Director | Sell | $6.42 | −501K | −$3.2M | 2.7M | – | Mar 16, 2026 | Mar 17, 2026 | |||||||||
|
Coghill Clint D.
· Director
Sell
−$1.7M
|
Coghill Clint D. | Director | Sell | $6.66 | −256K | −$1.7M | 3.2M | – | Mar 13, 2026 | Mar 17, 2026 | |||||||||
|
France Natasha
· Officer
2 operations
0
|
France Natasha | Officer | 2 operations | – | 0 | – | 12K | – | Feb 1, 2026 | Feb 4, 2026 | |||||||||
|
France Natasha
· Officer
Tax withholding or exercise payment (F)
-$16K
|
France Natasha | Officer | Tax withholding or exercise payment (F) | $5.02 | -3K | -$16K | 68K | – | Feb 1, 2026 | Feb 4, 2026 | |||||||||
N
A
M
M
G
A
112 reporting institutions disclosed AMPY 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.