D. E. Shaw & Co., Inc.
· Added
Change
+498K
Δ Own
+1047.9%
Date
Q1 2026
AM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
D. E. Shaw & Co., Inc.
· Added
Change
+498K
Δ Own
+1047.9%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +498K | +1047.9% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Added
Change
+320K
Date
Q1 2026
|
Marshall Wace, LLP | Added· Q1 2026 | – | +320K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+299K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +299K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+249K
Δ Own
+190.5%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +249K | +190.5% | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Reduced
Change
−243K
Date
Q1 2026
|
Susquehanna International Group, LLP | Reduced· Q1 2026 | – | −243K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+218K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +218K | – | Q1 2026 | |||||
|
Hamilton Capital Partners, LLC
· Exited
Change
−201K
Δ Own
−100.0%
Date
Q1 2026
|
Hamilton Capital Partners, LLC | Exited· Q1 2026 | – | −201K | −100.0% | Q1 2026 | |||||
|
Squarepoint Ops LLC
· Exited
Change
−177K
Δ Own
−100.0%
Date
Q1 2026
|
Squarepoint Ops LLC | Exited· Q1 2026 | – | −177K | −100.0% | Q1 2026 | |||||
|
Hudson Bay Capital Management LP
· New
Change
+107K
Date
Q1 2026
|
Hudson Bay Capital Management LP | New· Q1 2026 | – | +107K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+101K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +101K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+101K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +101K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+100K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +100K | – | Q1 2026 | |||||
|
Centiva Capital, LP
· New
Change
+91K
Date
Q1 2026
|
Centiva Capital, LP | New· Q1 2026 | – | +91K | – | Q1 2026 | |||||
|
Change
+85K
Date
Q1 2026
|
Renaissance Technologies LLC | New· Q1 2026 | – | +85K | – | Q1 2026 | |||||
|
Schonfeld Strategic Advisors LLC
· New
Change
+85K
Date
Q1 2026
|
Schonfeld Strategic Advisors LLC | New· Q1 2026 | – | +85K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Simon Timothy Alan
· Director
Sell
−$20K
|
Simon Timothy Alan | Director | Sell | $2.05 | −10K | −$20K | 43K | – | Jun 10, 2026 | Jun 11, 2026 | |||||||||
|
Waltz Todd
· Officer
Grant (A)
$528K
|
Waltz Todd | Officer | Grant (A) | $2.64 | 200K | $528K | 1.3M | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Gupta Sanjeev
· Officer
Grant (A)
$528K
|
Gupta Sanjeev | Officer | Grant (A) | $2.64 | 200K | $528K | 1.4M | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Rockett James Michael
· Officer
Grant (A)
$528K
|
Rockett James Michael | Officer | Grant (A) | $2.64 | 200K | $528K | 700K | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Block John R.
· Director
Grant (A)
$26K
|
Block John R. | Director | Grant (A) | $2.64 | 10K | $26K | 56K | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Foster Andrew B.
· Officer
Grant (A)
$528K
|
Foster Andrew B. | Officer | Grant (A) | $2.64 | 200K | $528K | 1.2M | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
McAfee Eric A.
· Director, Officer
Grant (A)
$792K
|
McAfee Eric A. | Director, Officer | Grant (A) | $2.64 | 300K | $792K | 3.9M | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Simon Timothy Alan
· Director
Grant (A)
$18K
|
Simon Timothy Alan | Director | Grant (A) | $1.54 | 12K | $18K | 53K | – | Jan 22, 2026 | Jan 28, 2026 | |||||||||
|
Block John R.
· Director
Grant (A)
$18K
|
Block John R. | Director | Grant (A) | $1.54 | 12K | $18K | 46K | – | Jan 22, 2026 | Jan 28, 2026 | |||||||||
|
Barton Francis P.
· Director
Grant (A)
$28K
|
Barton Francis P. | Director | Grant (A) | $1.54 | 18K | $28K | 227K | – | Jan 22, 2026 | Jan 28, 2026 | |||||||||
|
Beebe Lydia I.
· Director
Grant (A)
$22K
|
Beebe Lydia I. | Director | Grant (A) | $1.54 | 14K | $22K | 214K | – | Jan 22, 2026 | Jan 28, 2026 | |||||||||
|
Boness Naomi Louise
· Director
Grant (A)
$18K
|
Boness Naomi Louise | Director | Grant (A) | $1.54 | 12K | $18K | 65K | – | Jan 22, 2026 | Jan 28, 2026 | |||||||||
|
Barton Francis P.
· Director
4 operations
−$67K
|
Barton Francis P. | Director | 4 operations | $2.53 | −26K | −$67K | 222K | – | Aug 14, 2025 | Aug 14, 2025 | |||||||||
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75 reporting institutions disclosed AMTX 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.