OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

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

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

Q4 2025
Shares 480 Value ($000) $3 Avg Close $6.42 Range $5.50 - $7.19
Q3 2025
Shares 536 Value ($000) $3 Avg Close $5.48 Range $4.75 - $6.42
Q2 2025
Shares 968 Value ($000) $5 Avg Close $4.42 Range $3.08 - $5.81
Q1 2025
Shares 526 Value ($000) $3 Avg Close $5.25 Range $4.64 - $5.86
Q4 2024
Shares 474 Value ($000) $2 Avg Close $4.98 Range $4.10 - $5.84
Q3 2024
Shares 530 Value ($000) $2 Avg Close $4.79 Range $4.03 - $5.83
Q2 2024
Shares 1,101 Value ($000) $5 Avg Close $4.81 Range $3.91 - $6.53