AT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Geode
· Added
Change
+75K
Date
Q1 2026
|
Geode | Added· Q1 2026 | – | +75K | – | Q1 2026 | |||||
|
Bridgeway Capital Management, LLC
· Exited
Change
−32K
Δ Own
−100.0%
Date
Q1 2026
|
Bridgeway Capital Management, LLC | Exited· Q1 2026 | – | −32K | −100.0% | Q1 2026 | |||||
|
Jane Street Group, LLC
· New
Change
+32K
Date
Q1 2026
|
Jane Street Group, LLC | New· Q1 2026 | – | +32K | – | Q1 2026 | |||||
|
Xtx Topco Ltd
· Added
Change
+32K
Date
Q1 2026
|
Xtx Topco Ltd | Added· Q1 2026 | – | +32K | – | Q1 2026 | |||||
|
Prudential Financial Inc
· Exited
Change
−23K
Δ Own
−100.0%
Date
Q1 2026
|
Prudential Financial Inc | Exited· Q1 2026 | – | −23K | −100.0% | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· Exited
Change
−18K
Δ Own
−100.0%
Date
Q1 2026
|
Gsa Capital Partners LLP | Exited· Q1 2026 | – | −18K | −100.0% | Q1 2026 | |||||
|
Ground Swell Capital, LLC
· Exited
Change
−17K
Δ Own
−100.0%
Date
Q1 2026
|
Ground Swell Capital, LLC | Exited· Q1 2026 | – | −17K | −100.0% | Q1 2026 | |||||
|
Drw Securities, LLC
· Exited
Change
−12K
Δ Own
−100.0%
Date
Q1 2026
|
Drw Securities, LLC | Exited· Q1 2026 | – | −12K | −100.0% | Q1 2026 | |||||
|
Virtu Financial LLC
· New
Change
+11K
Date
Q1 2026
|
Virtu Financial LLC | New· Q1 2026 | – | +11K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Reduced
Change
−8K
Date
Q1 2026
|
Susquehanna International Group, LLP | Reduced· Q1 2026 | – | −8K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Added
Change
+6K
Δ Own
+13.5%
Date
Q1 2026
|
Renaissance Technologies LLC | Added· Q1 2026 | – | +6K | +13.5% | Q1 2026 | |||||
|
Royal Bank of Canada
· New
Change
+5K
Date
Q1 2026
|
Royal Bank of Canada | New· Q1 2026 | – | +5K | – | Q1 2026 | |||||
|
Simplex Trading, LLC
· Exited
Change
−1K
Δ Own
−100.0%
Date
Q1 2026
|
Simplex Trading, LLC | Exited· Q1 2026 | – | −1K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−498
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −498 | – | Q1 2026 | |||||
|
Bank of America Corp
· Exited
Change
−224
Δ Own
−100.0%
Date
Q1 2026
|
Bank of America Corp | Exited· Q1 2026 | – | −224 | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rodriguez Arturo
· Director
Grant (A)
70K
|
Rodriguez Arturo | Director | Grant (A) | – | 70K | – | 1.1M | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Lazar David E.
· Director
Grant (A)
1.8M
|
Lazar David E. | Director | Grant (A) | – | 1.8M | – | 1.8M | – | Apr 27, 2026 | May 1, 2026 | |||||||||
|
Kurtz William
· Director
Grant (A)
40K
|
Kurtz William | Director | Grant (A) | – | 40K | – | 156K | – | Jan 23, 2026 | Jan 23, 2026 | |||||||||
|
Feldman Joshua O.
· Officer
Grant (A)
120K
|
Feldman Joshua O. | Officer | Grant (A) | – | 120K | – | 497K | – | Jan 23, 2026 | Jan 23, 2026 | |||||||||
|
Rodriguez Arturo
· Director, Officer
Grant (A)
50K
|
Rodriguez Arturo | Director, Officer | Grant (A) | – | 50K | – | 1.0M | – | Jan 23, 2026 | Jan 23, 2026 | |||||||||
|
Lattmann Susan E.
· Director
Grant (A)
26K
|
Lattmann Susan E. | Director | Grant (A) | – | 26K | – | 162K | – | Jan 23, 2026 | Jan 23, 2026 | |||||||||
|
Harlam Bari A.
· Director
Grant (A)
25K
|
Harlam Bari A. | Director | Grant (A) | – | 25K | – | 162K | – | Jan 23, 2026 | Jan 23, 2026 | |||||||||
|
Kurtz William
· Director
Grant (A)
78K
|
Kurtz William | Director | Grant (A) | – | 78K | – | 116K | – | Aug 13, 2025 | Aug 15, 2025 | |||||||||
|
Harlam Bari A.
· Director
Grant (A)
78K
|
Harlam Bari A. | Director | Grant (A) | – | 78K | – | 137K | – | Aug 13, 2025 | Aug 15, 2025 | |||||||||
|
Lattmann Susan E.
· Director
Grant (A)
78K
|
Lattmann Susan E. | Director | Grant (A) | – | 78K | – | 137K | – | Aug 13, 2025 | Aug 15, 2025 | |||||||||
20 reporting institutions disclosed ATER 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.