Great Lakes Dredge & Dock
GLDD
GLDD was delisted on the 31st of March, 2026.
182 hedge funds and large institutions have $931M invested in Great Lakes Dredge & Dock in 2026 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 42 increasing their positions, 64 reducing their positions, and 90 closing their positions.
701% more call options, than puts
Call options by funds: $13.4M | Put options by funds: $1.68M
27% more capital invested
Capital invested by funds: $735M → $931M (+$196M)
0.27% less ownership
Funds ownership: 82.31% → 82.04% (-0.27%)
18% less funds holding
Funds holding: 222 → 182 (-40)
25% less funds holding in top 10
Funds holding in top 10: 4 → 3 (-1)
34% less repeat investments, than reductions
Existing positions increased: 42 | Existing positions reduced: 64
38% less first-time investments, than exits
New positions opened: 56 | Existing positions closed: 90
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GCL
Glazer Capital LLC
New York
|
+$47M |
| 2 |
Fidelity International
Hamilton,
Bermuda
|
+$42.5M |
| 3 |
Balyasny Asset Management
Chicago,
Illinois
|
+$25.9M |
| 4 |
Two Sigma Investments
New York
|
+$22.6M |
| 5 |
WIC
Water Island Capital
New York
|
+$20.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HP
Harvey Partners
Tarrytown,
New York
|
-$49.3M |
| 2 |
Jennison Associates
New York
|
-$44.2M |
| 3 |
TG
TCW Group
Los Angeles,
California
|
-$24.6M |
| 4 |
BlackRock
New York
|
-$15.6M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
-$14.6M |
GLDD Hedge Fund Activity: Q1 2026 in Review
182 of the 8,198 institutional investors tracked by Wall St. Rank reported a position in Great Lakes Dredge & Dock (GLDD) for Q1 2026, worth a combined $931M — up 27% from $735M a quarter earlier.
Sellers outnumbered buyers: 90 funds closed out of GLDD and 56 opened new positions — a net loss of 34 holders — while 64 trimmed existing stakes and 42 added.
The largest buyer was Glazer Capital LLC, opening a new position worth an estimated $47M. The largest seller was Harvey Partners, cutting an estimated $49.3M.
- 182 institutional investors held Great Lakes Dredge & Dock (GLDD) as of Q1 2026, down from 222 in Q4 2025.
- Funds reported $931M of Great Lakes Dredge & Dock stock for Q1 2026, up 27% quarter-over-quarter.
- 56 funds opened new Great Lakes Dredge & Dock positions in Q1 2026 and 90 closed out, a net change of -34 holders.
- The largest Great Lakes Dredge & Dock buyer in Q1 2026 was Glazer Capital LLC, an estimated $47M added.
- The largest Great Lakes Dredge & Dock seller in Q1 2026 was Harvey Partners, an estimated $49.3M sold.
Based on aggregated 13F filings for Q1 2026.