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Illinois Municipal Retirement Fund’s Gibraltar Industries ROCK Stock Holding History

Illinois Municipal Retirement Fund’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 		$649K Buy
16,286
+387
+2% +$18.7K 0.01% 981
2025
Q4 		$786K Sell
15,899
-53
-0.3% -$3.04K 0.01% 915
2025
Q3 		$1M Sell
15,952
-313
-2% -$19.6K 0.01% 841
2025
Q2 		$960K Buy
16,265
+634
+4% +$36.3K 0.01% 880
2025
Q1 		$917K Sell
15,631
-1,240
-7% -$77.1K 0.01% 939
2024
Q4 		$994K Buy
16,871
+237
+1% +$16.2K 0.01% 960
2024
Q3 		$1.16M Sell
16,634
-1,002
-6% -$69.9K 0.02% 865
2024
Q2 		$1.21M Sell
17,636
-151
-0.8% -$11K 0.02% 796
2024
Q1 		$1.43M Buy
17,787
+548
+3% +$43.7K 0.02% 723
2023
Q4 		$1.36M Sell
17,239
-1,123
-6% -$76.7K 0.02% 716
2023
Q3 		$1.24M Buy
+18,362
New +$1.26M 0.02% 696

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
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
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

Illinois Municipal Retirement Fund's ROCK Position: Q1 2026 in Review

Illinois Municipal Retirement Fund increased its Gibraltar Industries (ROCK) stake by 2.4% in Q1 2026, buying an estimated $18.7K and bringing the position to 16,286 shares worth $649K. The position accounts for 0.01% of the portfolio, ranked #981.

Illinois Municipal Retirement Fund first reported a position in ROCK in Q3 2023 and has held it in 11 quarters since. The position peaked at $1.43M in Q1 2024. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.

  • Illinois Municipal Retirement Fund held 16,286 shares of Gibraltar Industries worth $649K as of Q1 2026.
  • Illinois Municipal Retirement Fund bought 387 Gibraltar Industries shares in Q1 2026, an estimated $18.7K.
  • Gibraltar Industries made up 0.01% of Illinois Municipal Retirement Fund's portfolio in Q1 2026, its #981 holding.
  • Illinois Municipal Retirement Fund first reported a position in Gibraltar Industries in Q3 2023 and has held it in 11 quarters since.
  • Illinois Municipal Retirement Fund's Gibraltar Industries position peaked at $1.43M in Q1 2024.
  • 228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.

Based on Illinois Municipal Retirement Fund's 13F filing for Q1 2026, filed 5 May 2026.