PRECISION THERAPEUTICS INC

CUSIP: 74033P100 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q1 2019
Shares 154,873 Value ($000) $117 Avg Close — Range —
Q4 2018
Shares 138,346 Value ($000) $85 Avg Close — Range —
Q3 2018
Shares 101,040 Value ($000) $107 Avg Close — Range —
Q2 2018
Shares 99,825 Value ($000) $113 Avg Close — Range —
Q1 2018
Shares 99,825 Value ($000) $110 Avg Close — Range —