GLDD β€” GREAT LAKES DREDGE & DOCK CO COM

Ownership history in PEAK6 Group LLC  Β·  32 quarters on record

This page tracks every 13F SEC filing in which PEAK6 Group LLC reported a position in GREAT LAKES DREDGE & DOCK CO COM (GLDD). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.04% (2013 Q1)
πŸ“Š Avg. % of fund
0.0%
πŸ“… First filed
2010 Q3
πŸ“… Last filed
2018 Q2
⏱ Quarters held
32

Position Intelligence

PEAK6 Group LLC Γ— GLDD AI Analytics

πŸ“‰ PEAK6 Group LLC underperformed the S&P 500 by –10.0% annually on this GLDD position. Timing score: 71% (22/31 decisions correct). Average cost basis: $6.80. Maximum drawdown during holding period: –62.0%.

πŸ“ˆ Position Alpha vs SPY
-10.0%
annualised excess return

❌ Significantly underperformed the S&P 500 by 10.0% ann.
31 quarters analyzed

⏱️ Timing Score
71%

🎯 Smart timing β€” consistently buying dips and trimming near peaks.
22 of 31 add/trim decisions correct

πŸ’° Entry Quality
$6.80
-22.8% vs current ($5.25)

Best entry: $4.30 (2017 Q2)  Β·  Worst: $9.20 (2013 Q4)

πŸ›‘οΈ Drawdown Resilience
–62.0%
max drawdown while held

πŸ’ͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.

πŸ’ͺ Fund Conviction
44%
buy-side decisions

14 adds Β· 18 trims. Bought during 5 of 11 down-price quarters. πŸ“‰ Predominantly trimming β€” distribution phase.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.0% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    GLDD price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2018 Q2 ADDED 34,054 +24,854 +270.2% 0.00% $179K $5.25
2018 Q2 ADDED 9,200 +1,600 +21.1% 0.00% $48K $5.25
2018 Q1 REDUCED 7,600 -10,700 -58.5% 0.00% $35K $4.60
2018 Q1 REDUCED 18,300 -20,000 -52.2% 0.00% $84K $4.60
2018 Q1 REDUCED 38,300 -12,800 -25.0% 0.00% $176K $4.60
2017 Q4 ADDED 51,100 +45,037 +742.8% 0.00% $276K $5.40
2017 Q4 REDUCED 6,063 -38,437 -86.4% 0.00% $33K $5.40
2017 Q4 ADDED 44,500 +18,600 +71.8% 0.00% $240K $5.40
2017 Q3 ADDED 25,900 +23,700 +1077.3% 0.00% $126K $4.85
2017 Q3 REDUCED 2,200 -18,500 -89.4% 0.00% $11K $4.85
22 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding GLDD

As of 2025 Q4 β€” sorted by position size

Minerva Advisors LLC 3Y 7Y 12.18% Harvey Partners, LLC 3Y 7Y 4.31% Seven Six Capital Management, LLC 1.47% WITTENBERG INVESTMENT MANAGEMENT, INC. 3Y 7Y 0.92% PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 3Y 7Y 0.7% ESSEX INVESTMENT MANAGEMENT CO LLC 3Y 7Y 0.6% Jackson Creek Investment Advisors LLC 3Y 0.56% CenterBook Partners LP 3Y 0.26% American Capital Advisory, LLC 0.25% BFSG, LLC 3Y 7Y 0.22%
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