SLACK TECHNOLOGIES INC

CUSIP: 83088V102 Class: COM CL A

Columbia Asset Management's Holding History (CIK: 0001585047)

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

Q3 2020
Shares 11,560 Value ($000) $311 Avg Close — Range —
Q2 2020
Shares 11,960 Value ($000) $372 Avg Close — Range —
Q1 2020
Shares 13,185 Value ($000) $354 Avg Close — Range —
Q4 2019
Shares 18,830 Value ($000) $4,233 Avg Close — Range —