SIGMA LABS INC

CUSIP: 826598112 Class: *W

Virtu Financial LLC's Holding History (CIK: 0001533964)

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

Q4 2021
Shares 11,420 Value ($000) $0 Avg Close — Range —
Q3 2021
Shares 12,408 Value ($000) $2 Avg Close — Range —