Primecap Management’s Gibraltar Industries ROCK Stock Holding History

Primecap Management’s Portfolio ROCK Stock Details ROCK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$3.81M	Hold	95,600	–	–	﹤0.01%	286
2025 Q4	$4.73M	Hold	95,600	–	–	﹤0.01%	278
2025 Q3	$6M	Hold	95,600	–	–	﹤0.01%	276
2025 Q2	$5.64M	Sell	95,600 -6,700	-7%	-$384K	﹤0.01%	280
2025 Q1	$6M	Hold	102,300	–	–	0.01%	275
2024 Q4	$6.03M	Hold	102,300	–	–	﹤0.01%	268
2024 Q3	$7.15M	Hold	102,300	–	–	0.01%	275
2024 Q2	$7.01M	Hold	102,300	–	–	0.01%	269
2024 Q1	$8.24M	Hold	102,300	–	–	0.01%	266
2023 Q4	$8.08M	Sell	102,300 -11,400	-10%	-$779K	0.01%	271
2023 Q3	$7.68M	Sell	113,700 -47,500	-29%	-$3.25M	0.01%	269
2023 Q2	$10.1M	Sell	161,200 -85,900	-35%	-$4.65M	0.01%	256
2023 Q1	$12M	Hold	247,100	–	–	0.01%	249
2022 Q4	$11.3M	Sell	247,100 -60,500	-20%	-$2.9M	0.01%	243
2022 Q3	$12.6M	Sell	307,600 -14,500	-5%	-$618K	0.01%	236
2022 Q2	$12.5M	Sell	322,100 -35,000	-10%	-$1.43M	0.01%	237
2022 Q1	$15.3M	Sell	357,100 -14,000	-4%	-$738K	0.01%	243
2021 Q4	$24.7M	Hold	371,100	–	–	0.02%	231
2021 Q3	$25.8M	Sell	371,100 -1,000	-0.3%	-$71.9K	0.02%	228
2021 Q2	$28.4M	Sell	372,100 -2,800	-0.7%	-$231K	0.02%	224
2021 Q1	$34.3M	Hold	374,900	–	–	0.02%	211
2020 Q4	$27M	Sell	374,900 -4,700	-1%	-$314K	0.02%	218
2020 Q3	$24.7M	Sell	379,600 -5,000	-1%	-$295K	0.02%	211
2020 Q2	$18.5M	Buy	384,600 +3,800	+1%	+$169K	0.02%	210
2020 Q1	$16.3M	Buy	380,800 +122,000	+47%	+$6.1M	0.02%	201
2019 Q4	$13.1M	Sell	258,800 -1,000	-0.4%	-$50.2K	0.01%	228
2019 Q3	$11.9M	Hold	259,800	–	–	0.01%	228
2019 Q2	$10.5M	Hold	259,800	–	–	0.01%	240
2019 Q1	$10.6M	Hold	259,800	–	–	0.01%	236
2018 Q4	$9.25M	Hold	259,800	–	–	0.01%	234
2018 Q3	$11.8M	Buy	259,800 +57,300	+28%	+$2.48M	0.01%	240
2018 Q2	$7.59M	Buy	202,500 +5,000	+3%	+$186K	0.01%	243
2018 Q1	$6.68M	Buy	197,500 +95,200	+93%	+$3.31M	0.01%	249
2017 Q4	$3.38M	Buy	+102,300	New	+$3.27M	﹤0.01%	257