Mariner
ROCK icon

Mariner’s Gibraltar Industries ROCK Stock Holding History

Mariner’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
2025
Q4 		– Sell
-3,549
Closed -$223K – 3765
2025
Q3 		$223K Buy
+3,549
New +$222K ﹤0.01% 3083
2025
Q2 		– Sell
-6,907
Closed -$405K – 3648
2025
Q1 		$405K Buy
6,907
+531
+8% +$33K ﹤0.01% 2372
2024
Q4 		$376K Sell
6,376
-2,186
-26% -$149K ﹤0.01% 2425
2024
Q3 		$599K Sell
8,562
-199
-2% -$13.9K ﹤0.01% 1990
2024
Q2 		$601K Sell
8,761
-87
-1% -$6.33K ﹤0.01% 1912
2024
Q1 		$713K Sell
8,848
-226
-2% -$18K ﹤0.01% 1753
2023
Q4 		$717K Buy
9,074
+134
+1% +$9.16K ﹤0.01% 1685
2023
Q3 		$604K Sell
8,940
-581
-6% -$39.7K ﹤0.01% 1651
2023
Q2 		$599K Buy
9,521
+112
+1% +$6.06K ﹤0.01% 1618
2023
Q1 		$456K Sell
9,409
-261
-3% -$13.3K ﹤0.01% 1763
2022
Q4 		$444K Buy
9,670
+1,221
+14% +$58.6K ﹤0.01% 1735
2022
Q3 		$346K Buy
+8,449
New +$360K ﹤0.01% 1675

Other funds holding ROCK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return

Mariner's ROCK Position: Q4 2025 in Review

Mariner sold out of Gibraltar Industries (ROCK) in Q4 2025, closing a stake of 3,549 shares — an estimated $223K sold.

Mariner first reported a position in ROCK in Q3 2022 and held it in 12 quarters. The position peaked at $717K in Q4 2023. 254 funds tracked by Wall St. Rank hold ROCK as of Q4 2025.

  • Mariner reported no remaining Gibraltar Industries position as of Q4 2025 after selling out during the quarter.
  • Mariner sold 3,549 Gibraltar Industries shares in Q4 2025, an estimated $223K.
  • Mariner first reported a position in Gibraltar Industries in Q3 2022 and held it in 12 quarters.
  • Mariner's Gibraltar Industries position peaked at $717K in Q4 2023.
  • 254 funds tracked by Wall St. Rank held Gibraltar Industries as of Q4 2025.

Based on Mariner's 13F filing for Q4 2025, filed 13 Feb 2026.