683 Capital Management, LLC
· New
Change
+700K
Date
Q1 2026
AS
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
683 Capital Management, LLC
· New
Change
+700K
Date
Q1 2026
|
683 Capital Management, LLC | New· Q1 2026 | – | +700K | – | Q1 2026 | |||||
|
FMR LLC
· Reduced
Change
−654K
Δ Own
−61.1%
Date
Q1 2026
|
FMR LLC | Reduced· Q1 2026 | – | −654K | −61.1% | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
Change
+603K
Δ Own
+81.6%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | – | +603K | +81.6% | Q1 2026 | |||||
|
Northcrest Asset Manangement, LLC
· Exited
Change
−450K
Δ Own
−100.0%
Date
Q1 2026
|
Northcrest Asset Manangement, LLC | Exited· Q1 2026 | – | −450K | −100.0% | Q1 2026 | |||||
|
Man Group PLC
· New
Change
+153K
Date
Q1 2026
|
Man Group PLC | New· Q1 2026 | – | +153K | – | Q1 2026 | |||||
|
Dimensional
· Added
Change
+152K
Date
Q1 2026
|
Dimensional | Added· Q1 2026 | – | +152K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+126K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +126K | – | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Added
Change
+114K
Date
Q1 2026
|
Ameriprise Financial Inc | Added· Q1 2026 | – | +114K | – | Q1 2026 | |||||
|
Diamond Hill Capital Management Inc
· Added
Change
+111K
Date
Q1 2026
|
Diamond Hill Capital Management Inc | Added· Q1 2026 | – | +111K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+103K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +103K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
Change
−95K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | – | −95K | – | Q1 2026 | |||||
|
Schwab
· Added
Change
+95K
Date
Q1 2026
|
Schwab | Added· Q1 2026 | – | +95K | – | Q1 2026 | |||||
|
Jacobs Levy Equity Management, Inc
· Reduced
Change
−87K
Date
Q1 2026
|
Jacobs Levy Equity Management, Inc | Reduced· Q1 2026 | – | −87K | – | Q1 2026 | |||||
|
Shay Capital LLC
· Reduced
Change
−81K
Date
Q1 2026
|
Shay Capital LLC | Reduced· Q1 2026 | – | −81K | – | Q1 2026 | |||||
|
Exoduspoint Capital Management, LP
· Reduced
Change
−81K
Date
Q1 2026
|
Exoduspoint Capital Management, LP | Reduced· Q1 2026 | – | −81K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sim Brandon
· Officer
Tax withholding or exercise payment (F)
-$49K
|
Sim Brandon | Officer | Tax withholding or exercise payment (F) | $44.51 | -1K | -$49K | 1.2M | −0.1% | Jun 27, 2026 | Jun 30, 2026 | |||||||||
|
Schmidt David
· Director
Grant (A)
5K
|
Schmidt David | Director | Grant (A) | – | 5K | – | 36K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Mazdyasni Matthew
· Director
Grant (A)
5K
|
Mazdyasni Matthew | Director | Grant (A) | – | 5K | – | 39K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Kitayama Mitchell W.
· Director
Grant (A)
5K
|
Kitayama Mitchell W. | Director | Grant (A) | – | 5K | – | 33K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Dong Linda
· Director
Grant (A)
5K
|
Dong Linda | Director | Grant (A) | – | 5K | – | 97K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Dai, Weili
· Director
Grant (A)
5K
|
Dai, Weili | Director | Grant (A) | – | 5K | – | 18K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Chiang John
· Director
Grant (A)
5K
|
Chiang John | Director | Grant (A) | – | 5K | – | 35K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Basho Chandan
· Officer
Tax withholding or exercise payment (F)
-$312K
|
Basho Chandan | Officer | Tax withholding or exercise payment (F) | $38.26 | -8K | -$312K | 160K | – | May 16, 2026 | May 18, 2026 | |||||||||
|
Basho Chandan
· Officer
Tax withholding or exercise payment (F)
-$113K
|
Basho Chandan | Officer | Tax withholding or exercise payment (F) | $29.07 | -4K | -$113K | 168K | – | Apr 14, 2026 | Apr 15, 2026 | |||||||||
|
Lam Thomas S.
· Director
Grant (A)
42K
|
Lam Thomas S. | Director | Grant (A) | – | 42K | – | 466K | – | Apr 6, 2026 | Apr 8, 2026 | |||||||||
|
Sim Kenneth T.
· Director
Grant (A)
100K
|
Sim Kenneth T. | Director | Grant (A) | – | 100K | – | 739K | – | Apr 6, 2026 | Apr 8, 2026 | |||||||||
|
Sim Brandon
· Officer
Grant (A)
201K
|
Sim Brandon | Officer | Grant (A) | – | 201K | – | 1.2M | – | Apr 6, 2026 | Apr 8, 2026 | |||||||||
|
Basho Chandan
· Officer
Tax withholding or exercise payment (F)
-$52K
|
Basho Chandan | Officer | Tax withholding or exercise payment (F) | $25.05 | -2K | -$52K | 172K | – | Apr 2, 2026 | Apr 3, 2026 | |||||||||
|
Kumar Dinesh M.
· Officer
Tax withholding or exercise payment (F)
-$1.4M
|
Kumar Dinesh M. | Officer | Tax withholding or exercise payment (F) | $24.51 | -58K | -$1.4M | 178K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Kumar Dinesh M.
· Officer
Grant (A)
35K
|
Kumar Dinesh M. | Officer | Grant (A) | – | 35K | – | 236K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
N
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165 reporting institutions disclosed ASTH 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.