Kahn Brothers Group Inc
· Added
Change
+307K
Date
Q1 2026
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Kahn Brothers Group Inc
· Added
Change
+307K
Date
Q1 2026
|
Kahn Brothers Group Inc | Added· Q1 2026 | – | +307K | – | Q1 2026 | |||||
|
Gate City Capital Management, LLC
· Added
Change
+304K
Date
Q1 2026
|
Gate City Capital Management, LLC | Added· Q1 2026 | – | +304K | – | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−97K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −97K | – | Q1 2026 | |||||
|
Peapod Lane Capital LLC
· New
Change
+93K
Date
Q1 2026
|
Peapod Lane Capital LLC | New· Q1 2026 | – | +93K | – | Q1 2026 | |||||
|
Alberta Investment Management Corp
· Exited
Change
−66K
Δ Own
−100.0%
Date
Q1 2026
|
Alberta Investment Management Corp | Exited· Q1 2026 | – | −66K | −100.0% | Q1 2026 | |||||
|
Dimensional
· Reduced
Change
−65K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | – | −65K | – | Q1 2026 | |||||
|
Cerity Partners LLC
· Added
Change
+62K
Date
Q1 2026
|
Cerity Partners LLC | Added· Q1 2026 | – | +62K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−54K
Δ Own
−67.7%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −54K | −67.7% | Q1 2026 | |||||
|
Ancora Advisors LLC
· Reduced
Change
−53K
Date
Q1 2026
|
Ancora Advisors LLC | Reduced· Q1 2026 | – | −53K | – | Q1 2026 | |||||
|
Phoenix Financial Ltd.
· Exited
Change
−50K
Δ Own
−100.0%
Date
Q1 2026
|
Phoenix Financial Ltd. | Exited· Q1 2026 | – | −50K | −100.0% | Q1 2026 | |||||
|
Focus Partners Wealth
· Reduced
Change
−49K
Date
Q1 2026
|
Focus Partners Wealth | Reduced· Q1 2026 | – | −49K | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Added
Change
+46K
Δ Own
+123.6%
Date
Q1 2026
|
Renaissance Technologies LLC | Added· Q1 2026 | – | +46K | +123.6% | Q1 2026 | |||||
|
O'Keefe Stevens Advisory, Inc.
· Added
Change
+33K
Date
Q1 2026
|
O'Keefe Stevens Advisory, Inc. | Added· Q1 2026 | – | +33K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Exited
Change
−33K
Δ Own
−100.0%
Date
Q1 2026
|
Marshall Wace, LLP | Exited· Q1 2026 | – | −33K | −100.0% | Q1 2026 | |||||
|
Vanguard
· Reduced
Change
−32K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | – | −32K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Hirsh David Z.
· Director
Grant (A)
1K
|
Hirsh David Z. | Director | Grant (A) | – | 1K | – | 8K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Digilio Monica S.
· Director
Grant (A)
1K
|
Digilio Monica S. | Director | Grant (A) | – | 1K | – | 8K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Crawford Michael Anthony
· Director
Grant (A)
1K
|
Crawford Michael Anthony | Director | Grant (A) | – | 1K | – | 8K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Pershing Square Capital Management, L.P.
· Director
2 operations
$0
|
Pershing Square Capital Management, L.P. | Director | 2 operations | $22.25 | 0 | $0 | 91K | – | Apr 21, 2026 | Apr 23, 2026 | |||||||||
|
Partridge Matthew Morris
· Director
Tax withholding or exercise payment (F)
-$106K
|
Partridge Matthew Morris | Director | Tax withholding or exercise payment (F) | $21.46 | -5K | -$106K | 116K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Crawford Michael Anthony
· Director
Grant (A)
1K
|
Crawford Michael Anthony | Director | Grant (A) | – | 1K | – | 7K | – | Mar 16, 2026 | Mar 17, 2026 | |||||||||
|
Digilio Monica S.
· Director
Grant (A)
1K
|
Digilio Monica S. | Director | Grant (A) | – | 1K | – | 7K | – | Mar 16, 2026 | Mar 17, 2026 | |||||||||
|
Hirsh David Z.
· Director
Grant (A)
1K
|
Hirsh David Z. | Director | Grant (A) | – | 1K | – | 7K | – | Mar 16, 2026 | Mar 17, 2026 | |||||||||
|
Sachs Rebecca E.
· Officer
Tax withholding or exercise payment (F)
-$15K
|
Sachs Rebecca E. | Officer | Tax withholding or exercise payment (F) | $21.64 | -684 | -$15K | 23K | – | Mar 6, 2026 | Mar 9, 2026 | |||||||||
|
Partridge Matthew Morris
· Director, Officer
Tax withholding or exercise payment (F)
-$59K
|
Partridge Matthew Morris | Director, Officer | Tax withholding or exercise payment (F) | $21.64 | -3K | -$59K | 121K | – | Mar 6, 2026 | Mar 9, 2026 | |||||||||
|
Fato Luciana
· Officer
Tax withholding or exercise payment (F)
-$16K
|
Fato Luciana | Officer | Tax withholding or exercise payment (F) | $21.64 | -728 | -$16K | 19K | – | Mar 6, 2026 | Mar 9, 2026 | |||||||||
|
Sachs Rebecca E.
· Officer
Tax withholding or exercise payment (F)
-$23K
|
Sachs Rebecca E. | Officer | Tax withholding or exercise payment (F) | $23.36 | -987 | -$23K | 24K | – | Feb 27, 2026 | Mar 2, 2026 | |||||||||
|
Elaiwat Lenah
· Officer
Tax withholding or exercise payment (F)
-$21K
|
Elaiwat Lenah | Officer | Tax withholding or exercise payment (F) | $23.36 | -914 | -$21K | 31K | – | Feb 27, 2026 | Mar 2, 2026 | |||||||||
|
Partridge Matthew Morris
· Director, Officer
2 operations
83K
|
Partridge Matthew Morris | Director, Officer | 2 operations | – | 83K | – | 55K | – | Feb 26, 2026 | Mar 2, 2026 | |||||||||
|
Fato Luciana
· Officer
Grant (A)
8K
|
Fato Luciana | Officer | Grant (A) | – | 8K | – | 20K | – | Feb 26, 2026 | Mar 2, 2026 | |||||||||
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Institutions hold 12.7% of SEG shares in the Q1 2026 snapshot. The largest disclosed owners include Pershing Square Capital Management, L.P., Kahn Brothers Group Inc, Gate City Capital Management, LLC. The ownership chart shows each group's share of total shares outstanding from the latest disclosed filings. Retail and other includes everyone who does not file, not a tracked group.
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.