SIGMA LABS INC

CUSIP: 826598500 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q4 2022
Shares 18,136 Value ($000) $7 Avg Close — Range —
Q4 2020
Shares 10,419 Value ($000) $35 Avg Close — Range —