Madison Asset Management, LLC
· New
Change
+2.1M
Date
Q1 2026
AR
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Madison Asset Management, LLC
· New
Change
+2.1M
Date
Q1 2026
|
Madison Asset Management, LLC | New· Q1 2026 | – | +2.1M | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+232K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +232K | – | Q1 2026 | |||||
|
Dauntless Investment Group, LLC
· Added
Change
+84K
Date
Q1 2026
|
Dauntless Investment Group, LLC | Added· Q1 2026 | – | +84K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+80K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +80K | – | Q1 2026 | |||||
|
Informed Momentum Co LLC
· New
Change
+61K
Date
Q1 2026
|
Informed Momentum Co LLC | New· Q1 2026 | – | +61K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Added
Change
+40K
Date
Q1 2026
|
Susquehanna International Group, LLP | Added· Q1 2026 | – | +40K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
Change
−30K
Δ Own
−43.8%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | – | −30K | −43.8% | Q1 2026 | |||||
|
Omers Administration Corp
· Exited
Change
−28K
Δ Own
−100.0%
Date
Q1 2026
|
Omers Administration Corp | Exited· Q1 2026 | – | −28K | −100.0% | Q1 2026 | |||||
|
Hudson Bay Capital Management LP
· New
Change
+18K
Date
Q1 2026
|
Hudson Bay Capital Management LP | New· Q1 2026 | – | +18K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+16K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +16K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+11K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +11K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Exited
Change
−11K
Δ Own
−100.0%
Date
Q1 2026
|
Citadel Advisors LLC | Exited· Q1 2026 | – | −11K | −100.0% | Q1 2026 | |||||
|
Hrt Financial LP
· New
Change
+11K
Date
Q1 2026
|
Hrt Financial LP | New· Q1 2026 | – | +11K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
Change
+8K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | – | +8K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
Change
−8K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | – | −8K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Birx Deborah
· Director
Tax withholding or exercise payment (F)
-$60K
|
Birx Deborah | Director | Tax withholding or exercise payment (F) | $4.26 | -14K | -$60K | 198K | −6.6% | Jul 10, 2026 | Jul 14, 2026 | |||||||||
|
Gilmer Daniel B.
· Director
Grant (A)
51K
|
Gilmer Daniel B. | Director | Grant (A) | – | 51K | – | 51K | – | Apr 24, 2026 | Apr 28, 2026 | |||||||||
|
Kyme Pierre
· Officer
Tax withholding or exercise payment (F)
-$11K
|
Kyme Pierre | Officer | Tax withholding or exercise payment (F) | $10.54 | -1K | -$11K | 9K | – | Mar 14, 2026 | Mar 17, 2026 | |||||||||
|
Birx Deborah
· Director, Officer
Tax withholding or exercise payment (F)
-$52K
|
Birx Deborah | Director, Officer | Tax withholding or exercise payment (F) | $10.54 | -5K | -$52K | 212K | – | Mar 14, 2026 | Mar 17, 2026 | |||||||||
|
Kramer Robin
· Director
Grant (A)
26K
|
Kramer Robin | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Kyme Pierre
· Officer
Grant (A)
183K
|
Kyme Pierre | Officer | Grant (A) | – | 183K | – | 183K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
House David Duane
· Officer
Grant (A)
110K
|
House David Duane | Officer | Grant (A) | – | 110K | – | 110K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Patti Joseph M.
· Director
Grant (A)
26K
|
Patti Joseph M. | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Peterson Todd C.
· Director
Grant (A)
26K
|
Peterson Todd C. | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Odysseas Kostas D.
· Director
Grant (A)
26K
|
Odysseas Kostas D. | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Birx Deborah
· Director
Grant (A)
421K
|
Birx Deborah | Director | Grant (A) | – | 421K | – | 421K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Schlesinger Sarah J.
· Director
Grant (A)
26K
|
Schlesinger Sarah J. | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Haimovitz Jules
· Director
Grant (A)
26K
|
Haimovitz Jules | Director | Grant (A) | – | 26K | – | 26K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
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28 reporting institutions disclosed ARMP 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.