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Livermore
Livermore
ZHEN

D. E. Shaw & Co., Inc.

SEC CIK
0001009207
Latest filing
Aug 14, 2026

ROCK holding history

Gibraltar Industries, Inc. in every 13F filed by D. E. Shaw & Co., Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ROCK overviewAll 13F holders of ROCKFull Q2 2026 holdings

Shares (Q2 2026)
224,747
Value
$10.1M
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of ROCK by D. E. Shaw & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026224,747$10.1M<0.1%−24,925−10.0%ReducedHolders
Q1 2026249,672$9.95M<0.1%−70,170−21.9%ReducedHolders
Q4 2025319,842$15.8M<0.1%−5,645−1.7%ReducedHolders
Q3 2025325,487$20.4M<0.1%−33,007−9.2%ReducedHolders
Q2 2025358,494$21.2M<0.1%+5,095+1.4%AddedHolders
Q1 2025353,399$20.7M<0.1%+161,301+84.0%AddedHolders
Q4 2024192,098$11.3M<0.1%+82,965+76.0%AddedHolders
Q3 2024109,133$7.63M<0.1%−2,783−2.5%ReducedHolders
Q2 2024111,916$7.67M<0.1%+77,781+227.9%AddedHolders
Q1 202434,135$2.75M<0.1%−31,575−48.1%ReducedHolders
Q4 202365,710$5.19M<0.1%−3,855−5.5%ReducedHolders
Q3 202369,565$4.70M<0.1%−475−0.7%ReducedHolders
Q2 202370,040$4.41M<0.1%−7,105−9.2%ReducedHolders
Q1 202377,145$3.74M<0.1%−8,793−10.2%ReducedHolders
Q4 202285,938$3.94M<0.1%−100,213−53.8%ReducedHolders
Q3 2022186,151$7.62M<0.1%−76,288−29.1%ReducedHolders
Q2 2022262,439$10.2M<0.1%−34,311−11.6%ReducedHolders
Q1 2022296,750$12.7M<0.1%+192,164+183.7%AddedHolders
Q4 2021104,586$6.97M<0.1%+32,605+45.3%AddedHolders
Q3 202171,981$5.01M<0.1%+11,814+19.6%AddedHolders
Q2 202160,167$4.59M<0.1%+24,576+69.1%AddedHolders
Q1 202135,591$3.26M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.