DATA I O CORP

Ticker: DAIO CUSIP: 237690102 Class: Stock

Select Equity Group, L.P.'s Holding History (CIK: 0001592643)

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

Q4 2020
Shares 185,500 Value ($000) $764,260 Avg Close $3.85 Range $2.99 - $4.85
Q3 2020
Shares 712,755 Value ($000) $2,266,561 Avg Close $3.52 Range $2.86 - $4.06
Q2 2020
Shares 712,755 Value ($000) $2,409,112 Avg Close $3.13 Range $2.69 - $3.93