Harvey Partners, LLC
· Reduced
−$49M
Change
−3.1M
Date
Q1 2026
GL
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Harvey Partners, LLC
· Reduced
−$49M
Change
−3.1M
Date
Q1 2026
|
Harvey Partners, LLC | Reduced· Q1 2026 | −$49M | −3.1M | – | Q1 2026 | |||||
|
Glazer Capital, LLC
· New
+$47M
Change
+2.9M
Date
Q1 2026
|
Glazer Capital, LLC | New· Q1 2026 | +$47M | +2.9M | – | Q1 2026 | |||||
|
Jennison Associates LLC
· Reduced
−$44M
Change
−2.8M
Date
Q1 2026
|
Jennison Associates LLC | Reduced· Q1 2026 | −$44M | −2.8M | – | Q1 2026 | |||||
|
Fil Ltd
· New
+$43M
Change
+2.7M
Date
Q1 2026
|
Fil Ltd | New· Q1 2026 | +$43M | +2.7M | – | Q1 2026 | |||||
|
TCW Group Inc
· Exited
−$30M
Change
−1.9M
Δ Own
−100.0%
Date
Q1 2026
|
TCW Group Inc | Exited· Q1 2026 | −$30M | −1.9M | −100.0% | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· New
+$26M
Change
+1.6M
Date
Q1 2026
|
Balyasny Asset Management L.P. | New· Q1 2026 | +$26M | +1.6M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$23M
Change
+1.4M
Δ Own
+248.6%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$23M | +1.4M | +248.6% | Q1 2026 | |||||
|
Water Island Capital LLC
· New
+$20M
Change
+1.3M
Date
Q1 2026
|
Water Island Capital LLC | New· Q1 2026 | +$20M | +1.3M | – | Q1 2026 | |||||
|
Oddo Bhf Asset Management Sas
· New
+$19M
Change
+1.2M
Date
Q1 2026
|
Oddo Bhf Asset Management Sas | New· Q1 2026 | +$19M | +1.2M | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$16M
Change
−980K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$16M | −980K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
−$15M
Change
−914K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | −$15M | −914K | – | Q1 2026 | |||||
|
Beryl Capital Management LLC
· New
+$15M
Change
+913K
Date
Q1 2026
|
Beryl Capital Management LLC | New· Q1 2026 | +$15M | +913K | – | Q1 2026 | |||||
|
Sand Grove Capital Management LLP
· New
+$14M
Change
+893K
Date
Q1 2026
|
Sand Grove Capital Management LLP | New· Q1 2026 | +$14M | +893K | – | Q1 2026 | |||||
|
Omers Administration Corp
· New
+$14M
Change
+864K
Date
Q1 2026
|
Omers Administration Corp | New· Q1 2026 | +$14M | +864K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
+$12M
Change
+753K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | +$12M | +753K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Schiffer Vivienne
· Officer
Other Form 4 events
-145K
|
Schiffer Vivienne | Officer | Other Form 4 events | – | -145K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Schiffer Vivienne
· Officer
Grant (A)
29K
|
Schiffer Vivienne | Officer | Grant (A) | – | 29K | – | 145K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Petterson Lasse
· Director
Other Form 4 events
-1.6M
|
Petterson Lasse | Director | Other Form 4 events | – | -1.6M | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Petterson Lasse
· Director
Grant (A)
206K
|
Petterson Lasse | Director | Grant (A) | – | 206K | – | 1.6M | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Kornblau Scott Lee
· Officer
Other Form 4 events
-244K
|
Kornblau Scott Lee | Officer | Other Form 4 events | – | -244K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Kornblau Scott Lee
· Officer
Grant (A)
91K
|
Kornblau Scott Lee | Officer | Grant (A) | – | 91K | – | 244K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Johanson David
· Officer
Other Form 4 events
-192K
|
Johanson David | Officer | Other Form 4 events | – | -192K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Johanson David
· Officer
Grant (A)
72K
|
Johanson David | Officer | Grant (A) | – | 72K | – | 192K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Hanson William H.
· Officer
Other Form 4 events
-91K
|
Hanson William H. | Officer | Other Form 4 events | – | -91K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Hanson William H.
· Officer
Grant (A)
14K
|
Hanson William H. | Officer | Grant (A) | – | 14K | – | 91K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Gunsten Christopher
· Officer
Other Form 4 events
-182K
|
Gunsten Christopher | Officer | Other Form 4 events | – | -182K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Gunsten Christopher
· Officer
Grant (A)
72K
|
Gunsten Christopher | Officer | Grant (A) | – | 72K | – | 182K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Beyko Eleni
· Officer
Other Form 4 events
-151K
|
Beyko Eleni | Officer | Other Form 4 events | – | -151K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Beyko Eleni
· Officer
Grant (A)
26K
|
Beyko Eleni | Officer | Grant (A) | – | 26K | – | 151K | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
|
Bayer Ryan
· Officer
Other Form 4 events
-37K
|
Bayer Ryan | Officer | Other Form 4 events | – | -37K | – | 0 | – | Apr 1, 2026 | Apr 1, 2026 | |||||||||
N
A
M
M
G
A
244 reporting institutions disclosed GLDD 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.