Save your place

Sign in to WhoBought

Please try again later.

Jim Simons's Great Lakes Dredge & Dock Corporation (GLDD) position

Yes: as of Q1 2026, Jim Simons holds 382K shares of GLDD worth $6.5M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
View full portfolio →
Current value
$6.5M
Shares held
382K
% of portfolio
0.0%
Est. average buy price (i)
$12.85
est. since Q1 2021
Quarter-end price
$17.00

Estimated trade prices

Average price in quarters with purchases
$11.59
Average prices in quarters with sales
  • Q3 2025: $11.60 (129K shares sold)
  • Q1 2025: $9.98 (162K shares sold)
  • Q3 2024: $9.29 (94K shares sold)
  • Q2 2024: $8.50 (138K shares sold)
  • Q1 2024: $8.23 (201K shares sold)
  • Q3 2023: $8.29 (120K shares sold)
  • Q2 2023: $6.49 (356K shares sold)
  • Q1 2023: $5.99 (174K shares sold)
  • Q4 2022: $7.03 (21K shares sold)
  • Q3 2022: $10.47 (192K shares sold)
  • Q2 2022: $14.19 (19K shares sold)
  • Q1 2022: $14.39 (48K shares sold)
  • Q4 2021: $15.22 (84K shares sold)
  • Q3 2021: $14.86 (156K shares sold)
  • Q2 2021: $14.77 (370K shares sold)

GLDD price vs Simons's position

Dates
$4$10$15$2020222023202420252026Sold 370K shares (17.2%) · Q2 2021. Average closing price $14.77 · Price range $13.54–$16.17370KsharessoldSold 156K shares (8.7%) · Q3 2021. Average closing price $14.86 · Price range $14.08–$15.76156KsharessoldSold 84K shares (5.2%) · Q4 2021. Average closing price $15.22 · Price range $14.35–$16.1684KsharessoldSold 48K shares (3.1%) · Q1 2022. Average closing price $14.39 · Price range $13.40–$16.0748KsharessoldSold 19K shares (1.3%) · Q2 2022. Average closing price $14.19 · Price range $13.11–$15.3719KsharessoldSold 192K shares (13.0%) · Q3 2022. Average closing price $10.47 · Price range $7.58–$12.99192KsharessoldSold 21K shares (1.7%) · Q4 2022. Average closing price $7.03 · Price range $5.67–$8.0921KsharessoldSold 174K shares (13.8%) · Q1 2023. Average closing price $5.99 · Price range $4.80–$7.00174KsharessoldSold 356K shares (32.8%) · Q2 2023. Average closing price $6.49 · Price range $5.27–$8.16356KsharessoldSold 120K shares (16.4%) · Q3 2023. Average closing price $8.29 · Price range $7.57–$9.45120KsharessoldAdded 54K shares (8.8%) · Q4 2023. Average closing price $7.28 · Price range $6.25–$8.1654KsharespurchasedSold 201K shares (30.2%) · Q1 2024. Average closing price $8.23 · Price range $7.12–$9.55201KsharessoldSold 138K shares (29.7%) · Q2 2024. Average closing price $8.50 · Price range $6.60–$9.65138KsharessoldSold 94K shares (29.0%) · Q3 2024. Average closing price $9.29 · Price range $8.10–$10.7994KsharessoldAdded 48K shares (20.6%) · Q4 2024. Average closing price $11.96 · Price range $10.72–$12.7348KsharespurchasedSold 162K shares (58.2%) · Q1 2025. Average closing price $9.98 · Price range $7.67–$12.44162KsharessoldAdded 268K shares (230.2%) · Q2 2025. Average closing price $10.40 · Price range $8.04–$12.31268KsharespurchasedSold 129K shares (33.6%) · Q3 2025. Average closing price $11.60 · Price range $10.53–$12.27129KsharessoldAdded 4K shares (1.5%) · Q4 2025. Average closing price $12.32 · Price range $10.78–$13.884KsharespurchasedAdded 123K shares (47.5%) · Q1 2026. Average closing price $15.93 · Price range $13.10–$17.00123Ksharespurchased
Average closing price · filing quarter
$15.93
Price range · filing quarter
$13.10 – $17.00

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +123K +$2.0M +47.5% 382K May 14, 2026
Q4 2025 Added +4K +$46K +1.5% 259K Feb 12, 2026
Q3 2025 Reduced −129K −$1.5M −33.6% 255K Nov 13, 2025
Q2 2025 Added +268K +$2.8M +230.2% 384K Aug 13, 2025
Q1 2025 Reduced −162K −$1.6M −58.2% 116K May 14, 2025
Q4 2024 Added +48K +$568K +20.6% 279K Feb 13, 2025
Q3 2024 Reduced −94K −$878K −29.0% 231K Nov 13, 2024
Q2 2024 Reduced −138K −$1.2M −29.7% 326K Aug 9, 2024
Q1 2024 Reduced −201K −$1.7M −30.2% 463K May 13, 2024
Q4 2023 Added +54K +$393K +8.8% 664K Feb 13, 2024
Q3 2023 Reduced −120K −$991K −16.4% 610K Nov 14, 2023
Q2 2023 Reduced −356K −$2.3M −32.8% 730K Aug 11, 2023
Q1 2023 Reduced −174K −$1.0M −13.8% 1.1M May 12, 2023
Q4 2022 Reduced −21K −$150K −1.7% 1.3M Feb 13, 2023
Q3 2022 Reduced −192K −$2.0M −13.0% 1.3M Nov 14, 2022
Q2 2022 Reduced −19K −$265K −1.3% 1.5M Aug 12, 2022
Q1 2022 Reduced −48K −$698K −3.1% 1.5M May 13, 2022
Q4 2021 Reduced −84K −$1.3M −5.2% 1.5M Feb 11, 2022
Q3 2021 Reduced −156K −$2.3M −8.7% 1.6M Nov 12, 2021
Q2 2021 Reduced −370K −$5.5M −17.2% 1.8M Aug 13, 2021
Q1 2021 First covered 2.1M May 13, 2021
Data through Q1 2026 · filed May 14, 2026
21 grouped rows from 21 quarters

More Simons positions

Common questions

Does Jim Simons own GLDD?

Yes. As of Q1 2026, Jim Simons disclosed 382K shares of GLDD, worth $6.5M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy GLDD?

Jim Simons held GLDD since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell GLDD?

The quarter-by-quarter table above shows each sale and reduction Jim Simons disclosed in GLDD. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of GLDD does Jim Simons own?

Jim Simons disclosed 382K shares of GLDD as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for GLDD?

Jim Simons began building the GLDD position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.