AT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Prudential Financial Inc
· Added
+$16M
Change
+812K
Date
Q1 2026
|
Prudential Financial Inc | Added· Q1 2026 | +$16M | +812K | – | Q1 2026 | |||||
|
First Trust Advisors LP
· Reduced
−$15M
Change
−744K
Date
Q1 2026
|
First Trust Advisors LP | Reduced· Q1 2026 | −$15M | −744K | – | Q1 2026 | |||||
|
Penserra Capital Management LLC
· Reduced
−$13M
Change
−666K
Date
Q1 2026
|
Penserra Capital Management LLC | Reduced· Q1 2026 | −$13M | −666K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· New
+$12M
Change
+596K
Date
Q1 2026
|
Jane Street Group, LLC | New· Q1 2026 | +$12M | +596K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$11M
Change
+586K
Δ Own
+79.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$11M | +586K | +79.9% | Q1 2026 | |||||
|
Deprince Race & Zollo Inc
· New
+$11M
Change
+565K
Date
Q1 2026
|
Deprince Race & Zollo Inc | New· Q1 2026 | +$11M | +565K | – | Q1 2026 | |||||
|
Royal Bank of Canada
· Added
+$10M
Change
+531K
Date
Q1 2026
|
Royal Bank of Canada | Added· Q1 2026 | +$10M | +531K | – | Q1 2026 | |||||
|
Oberweis Asset Management Inc/
· New
+$9.9M
Change
+504K
Date
Q1 2026
|
Oberweis Asset Management Inc/ | New· Q1 2026 | +$9.9M | +504K | – | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
−$9.3M
Change
−474K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | −$9.3M | −474K | −100.0% | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
−$9.3M
Change
−474K
Δ Own
−56.6%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | −$9.3M | −474K | −56.6% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Reduced
−$9.1M
Change
−465K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Reduced· Q1 2026 | −$9.1M | −465K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Reduced
−$9.1M
Change
−464K
Date
Q1 2026
|
T. Rowe Price Associates | Reduced· Q1 2026 | −$9.1M | −464K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Added
+$7.9M
Change
+402K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Added· Q1 2026 | +$7.9M | +402K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
+$7.1M
Change
+362K
Δ Own
+238.1%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | +$7.1M | +362K | +238.1% | Q1 2026 | |||||
|
Russell Investments Group, Ltd.
· Added
+$7.0M
Change
+356K
Date
Q1 2026
|
Russell Investments Group, Ltd. | Added· Q1 2026 | +$7.0M | +356K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Weber Robert Scott
· Officer
Tax withholding or exercise payment (F)
-$69K
|
Weber Robert Scott | Officer | Tax withholding or exercise payment (F) | $36.30 | -2K | -$69K | 65K | −2.8% | Jul 6, 2026 | Jul 6, 2026 | |||||||||
|
Caron Michelle Elizabeth
· CFO
Tax withholding or exercise payment (F)
-$20K
|
Caron Michelle Elizabeth | CFO | Tax withholding or exercise payment (F) | $27.00 | -748 | -$20K | 36K | – | May 15, 2026 | May 15, 2026 | |||||||||
|
Trivedi Dhrupad
· Director
Tax withholding or exercise payment (F)
-$887K
|
Trivedi Dhrupad | Director | Tax withholding or exercise payment (F) | $27.00 | -33K | -$887K | 888K | – | May 15, 2026 | May 15, 2026 | |||||||||
|
Weber Robert Scott
· Officer
Tax withholding or exercise payment (F)
-$52K
|
Weber Robert Scott | Officer | Tax withholding or exercise payment (F) | $27.00 | -2K | -$52K | 66K | – | May 15, 2026 | May 15, 2026 | |||||||||
|
Caron Michelle Elizabeth
· CFO
2 operations
0
|
Caron Michelle Elizabeth | CFO | 2 operations | – | 0 | – | 0 | – | May 14, 2026 | May 15, 2026 | |||||||||
|
Trivedi Dhrupad
· Director
4 operations
0
|
Trivedi Dhrupad | Director | 4 operations | – | 0 | – | 0 | – | May 14, 2026 | May 15, 2026 | |||||||||
|
Weber Robert Scott
· Officer
4 operations
0
|
Weber Robert Scott | Officer | 4 operations | – | 0 | – | 0 | – | May 14, 2026 | May 15, 2026 | |||||||||
|
Trivedi Dhrupad
· Director
Tax withholding or exercise payment (F)
-$891K
|
Trivedi Dhrupad | Director | Tax withholding or exercise payment (F) | $27.13 | -33K | -$891K | 792K | – | May 6, 2026 | May 6, 2026 | |||||||||
|
Weber Robert Scott
· Officer
Tax withholding or exercise payment (F)
-$52K
|
Weber Robert Scott | Officer | Tax withholding or exercise payment (F) | $27.13 | -2K | -$52K | 60K | – | May 6, 2026 | May 6, 2026 | |||||||||
|
Caron Michelle Elizabeth
· CFO
Tax withholding or exercise payment (F)
-$81K
|
Caron Michelle Elizabeth | CFO | Tax withholding or exercise payment (F) | $27.13 | -3K | -$81K | 33K | – | May 6, 2026 | May 6, 2026 | |||||||||
|
Singer Eric
· Director
Sell
−$672K
|
Singer Eric | Director | Sell | $27.21 | −25K | −$672K | 69K | – | May 5, 2026 | May 6, 2026 | |||||||||
|
Trivedi Dhrupad
· Director
4 operations
0
|
Trivedi Dhrupad | Director | 4 operations | – | 0 | – | 66K | – | May 5, 2026 | May 6, 2026 | |||||||||
|
Weber Robert Scott
· Officer
4 operations
0
|
Weber Robert Scott | Officer | 4 operations | – | 0 | – | 4K | – | May 5, 2026 | May 6, 2026 | |||||||||
|
Caron Michelle Elizabeth
· CFO
4 operations
0
|
Caron Michelle Elizabeth | CFO | 4 operations | – | 0 | – | 3K | – | May 5, 2026 | May 6, 2026 | |||||||||
|
Chung Peter Y.
· Director
Grant (A)
7K
|
Chung Peter Y. | Director | Grant (A) | – | 7K | – | 207K | – | Apr 22, 2026 | Apr 24, 2026 | |||||||||
258 reporting institutions disclosed ATEN 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.