Save your place

Sign in to WhoBought

Please try again later.

Jim Simons's Gibraltar Industries, Inc. (ROCK) position

Yes: as of Q1 2026, Jim Simons holds 16K shares of ROCK worth an amount we cannot price (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
an amount we cannot price
Shares held
16K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

ROCK price vs Simons's position

Dates
$43$43.2$43.4$43.6← Earlier —5 purchases, 15 sells
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −24K −60.4% 16K May 14, 2026
Q4 2025 Reduced −66K −62.6% 39K Feb 12, 2026
Q3 2025 Reduced −105K −50.2% 105K Nov 13, 2025
Q2 2025 Reduced −40K −16.1% 210K Aug 13, 2025
Q1 2025 Reduced −10K −3.9% 250K May 14, 2025
Q4 2024 Added +90K +52.8% 260K Feb 13, 2025
Q3 2024 Added +20K +12.9% 170K Nov 13, 2024
Q2 2024 Reduced −18K −10.5% 151K Aug 9, 2024
Q1 2024 Reduced −21K −11.1% 169K May 13, 2024
Q4 2023 Added +14K +7.8% 190K Feb 13, 2024
Q3 2023 Reduced −33K −16.0% 176K Nov 14, 2023
Q2 2023 Reduced −37K −15.1% 209K Aug 11, 2023
Q1 2023 Reduced −30K −11.0% 246K May 12, 2023
Q4 2022 Reduced −2K −0.6% 277K Feb 13, 2023
Q3 2022 Reduced −65K −18.9% 279K Nov 14, 2022
Q2 2022 Added +74K +27.5% 344K Aug 12, 2022
Q1 2022 Added +67K +32.9% 270K May 13, 2022
Q4 2021 Reduced −86K −29.8% 203K Feb 11, 2022
Q3 2021 Reduced −49K −14.6% 289K Nov 12, 2021
Q2 2021 Reduced −96K −22.2% 338K Aug 13, 2021
Q1 2021 First covered 435K 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 ROCK?

Yes. As of Q1 2026, Jim Simons disclosed 16K shares of ROCK, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy ROCK?

Jim Simons held ROCK 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 ROCK?

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

How many shares of ROCK does Jim Simons own?

Jim Simons disclosed 16K shares of ROCK 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 ROCK?

Jim Simons began building the ROCK 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.