Bank of Montreal
· New
Change
+1.8M
Date
Q1 2026
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Bank of Montreal
· New
Change
+1.8M
Date
Q1 2026
|
Bank of Montreal | New· Q1 2026 | – | +1.8M | – | Q1 2026 | |||||
|
Castleknight Management LP
· Added
Change
+403K
Date
Q1 2026
|
Castleknight Management LP | Added· Q1 2026 | – | +403K | – | Q1 2026 | |||||
|
Russell Investments Group, Ltd.
· Added
Change
+200K
Date
Q1 2026
|
Russell Investments Group, Ltd. | Added· Q1 2026 | – | +200K | – | Q1 2026 | |||||
|
Diametric Capital, LP
· Added
Change
+117K
Date
Q1 2026
|
Diametric Capital, LP | Added· Q1 2026 | – | +117K | – | Q1 2026 | |||||
|
Ancora Advisors LLC
· Added
Change
+110K
Date
Q1 2026
|
Ancora Advisors LLC | Added· Q1 2026 | – | +110K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Added
Change
+109K
Date
Q1 2026
|
Acadian Asset Management LLC | Added· Q1 2026 | – | +109K | – | Q1 2026 | |||||
|
Peak6 LLC
· Added
Change
+94K
Date
Q1 2026
|
Peak6 LLC | Added· Q1 2026 | – | +94K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+83K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +83K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+81K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +81K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+77K
Δ Own
+256.0%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +77K | +256.0% | Q1 2026 | |||||
|
Royce & Associates LP
· Added
Change
+72K
Date
Q1 2026
|
Royce & Associates LP | Added· Q1 2026 | – | +72K | – | Q1 2026 | |||||
|
Verition Fund Management LLC
· Added
Change
+64K
Date
Q1 2026
|
Verition Fund Management LLC | Added· Q1 2026 | – | +64K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+51K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +51K | – | Q1 2026 | |||||
|
Change
+50K
Date
Q1 2026
|
Renaissance Technologies LLC | New· Q1 2026 | – | +50K | – | Q1 2026 | |||||
|
Xtx Topco Ltd
· New
Change
+39K
Date
Q1 2026
|
Xtx Topco Ltd | New· Q1 2026 | – | +39K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rachesky Mark H. Md
· Director
Grant (A)
2K
|
Rachesky Mark H. Md | Director | Grant (A) | – | 2K | – | 24K | +8.8% | Jul 28, 2026 | Jul 30, 2026 | |||||||||
|
Fine Emily
· Director
Grant (A)
2K
|
Fine Emily | Director | Grant (A) | – | 2K | – | 16K | +13.7% | Jul 28, 2026 | Jul 30, 2026 | |||||||||
|
Wilson Royce E.
· Director
Grant (A)
973
|
Wilson Royce E. | Director | Grant (A) | – | 973 | – | 10K | +11.4% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Simmons Hardwick
· Director
Grant (A)
1K
|
Simmons Hardwick | Director | Grant (A) | – | 1K | – | 45K | +2.9% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Hirsch Jeffrey
· Director
Grant (A)
112K
|
Hirsch Jeffrey | Director | Grant (A) | – | 112K | – | 480K | +30.5% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Sapan Joshua W.
· Director
Grant (A)
1K
|
Sapan Joshua W. | Director | Grant (A) | – | 1K | – | 17K | +8.0% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Gersh Lisa
· Director
Grant (A)
2K
|
Gersh Lisa | Director | Grant (A) | – | 2K | – | 16K | +17.3% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Clyburn Mignon L.
· Director
Grant (A)
973
|
Clyburn Mignon L. | Director | Grant (A) | – | 973 | – | 28K | +3.6% | Jul 28, 2026 | Jul 29, 2026 | |||||||||
|
Hoffman Alison
· Officer
Tax withholding or exercise payment (F)
-$303K
|
Hoffman Alison | Officer | Tax withholding or exercise payment (F) | $28.99 | -10K | -$303K | 77K | −11.9% | Jul 3, 2026 | Jul 8, 2026 | |||||||||
|
Hirsch Jeffrey
· Director
Tax withholding or exercise payment (F)
-$692K
|
Hirsch Jeffrey | Director | Tax withholding or exercise payment (F) | $28.99 | -24K | -$692K | 367K | −6.1% | Jul 3, 2026 | Jul 8, 2026 | |||||||||
|
Macdonald Scott D.
· Officer
Tax withholding or exercise payment (F)
-$158K
|
Macdonald Scott D. | Officer | Tax withholding or exercise payment (F) | $28.99 | -5K | -$158K | 56K | −8.9% | Jul 3, 2026 | Jul 8, 2026 | |||||||||
|
Wyrick Jason
· Officer
Tax withholding or exercise payment (F)
-$33K
|
Wyrick Jason | Officer | Tax withholding or exercise payment (F) | $28.99 | -1K | -$33K | 25K | −4.4% | Jul 3, 2026 | Jul 8, 2026 | |||||||||
|
Hoffman Alison
· Officer
Tax withholding or exercise payment (F)
-$195K
|
Hoffman Alison | Officer | Tax withholding or exercise payment (F) | $28.86 | -7K | -$195K | 88K | −7.2% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Wyrick Jason
· Officer
Tax withholding or exercise payment (F)
-$37K
|
Wyrick Jason | Officer | Tax withholding or exercise payment (F) | $28.86 | -1K | -$37K | 26K | −4.7% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
|
Hirsch Jeffrey
· Director
Tax withholding or exercise payment (F)
-$463K
|
Hirsch Jeffrey | Director | Tax withholding or exercise payment (F) | $28.86 | -16K | -$463K | 391K | −3.9% | Jul 1, 2026 | Jul 6, 2026 | |||||||||
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125 reporting institutions disclosed STRZ 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.