Janus Henderson Group
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Janus Henderson Group’s Gibraltar Industries ROCK Stock Holding History

Janus Henderson Group’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 		$563K Hold
14,107
– – ﹤0.01% 1959
2025
Q4 		$698K Hold
14,107
– – ﹤0.01% 1868
2025
Q3 		$886K Hold
14,107
– – ﹤0.01% 1726
2025
Q2 		$832K Hold
14,107
– – ﹤0.01% 1704
2025
Q1 		$839K Sell
14,107
-294,628
-95% -$18.3M ﹤0.01% 1713
2024
Q4 		$18.2M Sell
308,735
-69,740
-18% -$4.75M 0.01% 601
2024
Q3 		$26.5M Sell
378,475
-130,611
-26% -$9.12M 0.01% 521
2024
Q2 		$34.9M Buy
509,086
+172,097
+51% +$12.5M 0.02% 458
2024
Q1 		$27.1M Sell
336,989
-61,194
-15% -$4.88M 0.01% 510
2023
Q4 		$31.4M Sell
398,183
-24
-0% -$1.64K 0.02% 465
2023
Q3 		$26.9M Sell
398,207
-272
-0.1% -$18.6K 0.02% 477
2023
Q2 		$25.1M Sell
398,479
-20
-0% -$1.08K 0.02% 518
2023
Q1 		$19.3M Buy
398,499
+77,297
+24% +$3.95M 0.01% 587
2022
Q4 		$14.7M Sell
321,202
-322,880
-50% -$15.5M 0.01% 628
2022
Q3 		$26.4M Buy
644,082
+637,478
+9,653% +$27.2M 0.01% 624
2022
Q2 		$256K Sell
6,604
-8
-0.1% -$326 ﹤0.01% 2180
2022
Q1 		$284K Buy
6,612
+2
+0% +$105 ﹤0.01% 2254
2021
Q4 		$440K Buy
6,610
+3,323
+101% +$237K ﹤0.01% 1971
2021
Q3 		$229K Buy
+3,287
New +$236K ﹤0.01% 2010
2021
Q1 		– Sell
-6,778
Closed -$488K – 1620
2020
Q4 		$488K Buy
+6,778
New +$453K ﹤0.01% 1277

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

Janus Henderson Group's ROCK Position: Q1 2026 in Review

Janus Henderson Group held its Gibraltar Industries (ROCK) position steady in Q1 2026 at 14,107 shares worth $563K. The position accounts for ﹤0.01% of the portfolio, ranked #1959.

Janus Henderson Group first reported a position in ROCK in Q4 2020 and has held it in 20 quarters since. The position peaked at $34.9M in Q2 2024. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.

  • Janus Henderson Group held 14,107 shares of Gibraltar Industries worth $563K as of Q1 2026.
  • Janus Henderson Group left its Gibraltar Industries share count unchanged in Q1 2026.
  • Gibraltar Industries made up ﹤0.01% of Janus Henderson Group's portfolio in Q1 2026, its #1959 holding.
  • Janus Henderson Group first reported a position in Gibraltar Industries in Q4 2020 and has held it in 20 quarters since.
  • Janus Henderson Group's Gibraltar Industries position peaked at $34.9M in Q2 2024.
  • 228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.