Parallel Advisors’s Gibraltar Industries ROCK Stock Holding History

Parallel Advisors’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	$16.1K	Buy	+403	New	+$19.5K	﹤0.01%	2562
2025 Q2	–	Sell	-145	Closed	-$8.51K	–	3678
2025 Q1	$8.51K	Buy	145 +130	+867%	+$8.09K	﹤0.01%	2497
2024 Q4	$884	Hold	15	–	–	﹤0.01%	3132
2024 Q3	$1.05K	Buy	15 +8	+114%	+$558	﹤0.01%	3022
2024 Q2	$480	Hold	7	–	–	﹤0.01%	3102
2024 Q1	$564	Hold	7	–	–	﹤0.01%	3035
2023 Q4	$553	Hold	7	–	–	﹤0.01%	3044
2023 Q3	$473	Hold	7	–	–	﹤0.01%	3115
2023 Q2	$440	Buy	+7	New	+$379	﹤0.01%	3123
2022 Q3	–	Sell	-9	Closed	–	–	3443
2022 Q2	$0	Buy	+9	New	+$367	﹤0.01%	3304
2022 Q1	–	Sell	-2	Closed	–	–	3230
2021 Q4	$0	Buy	+2	New	+$143	﹤0.01%	3265
2019 Q2	–	Sell	-373	Closed	-$15K	–	2411
2019 Q1	$15K	Buy	+373	New	+$14.2K	﹤0.01%	1344
2018 Q4	–	Sell	-300	Closed	-$14K	–	2253
2018 Q3	$14K	Hold	300	–	–	﹤0.01%	1310
2018 Q2	$11K	Buy	+300	New	+$11.1K	﹤0.01%	1311

Other funds holding ROCK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

Parallel Advisors's ROCK Position: Q1 2026 in Review

Parallel Advisors opened a new position in Gibraltar Industries (ROCK) in Q1 2026: 403 shares worth $16.1K. The stake represents ﹤0.01% of the portfolio and ranks #2562 among its holdings. This is a return to the name: Parallel Advisors previously reported a position in ROCK as recently as Q1 2025.

Parallel Advisors first reported a position in ROCK in Q2 2018 and has held it in 14 quarters since. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.

Parallel Advisors held 403 shares of Gibraltar Industries worth $16.1K as of Q1 2026.
Gibraltar Industries was a new Parallel Advisors position in Q1 2026.
Gibraltar Industries made up ﹤0.01% of Parallel Advisors's portfolio in Q1 2026, its #2562 holding.
Parallel Advisors first reported a position in Gibraltar Industries in Q2 2018 and has held it in 14 quarters since.
228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.

Based on Parallel Advisors's 13F filing for Q1 2026, filed 7 May 2026.