GIBRALTAR INDS INC

Ticker: ROCK CUSIP: 374689107 Class: EQTY

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 72 Value ($000) $4 Avg Close $57.30 Range $42.86 - $75.08
Q3 2025
Shares 118 Value ($000) $7 Avg Close $62.56 Range $56.50 - $67.90
Q2 2025
Shares 66 Value ($000) $4 Avg Close $57.26 Range $48.96 - $63.60
Q1 2025
Shares 95 Value ($000) $6 Avg Close $62.21 Range $55.31 - $71.07