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START FREE TRIAL →Michael Bigham, Exec. Chairman of the Board, is a corporate insider tracked by InsiderTape across 1 company. The public record shows 10 open-market SEC Form 4 transactions: 0 purchases worth $0 and 10 sales worth $598K, reported from Aug 17, 21 to Aug 9, 23. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 9, 23 | PRTKParatek Pharmaceuticals, Inc. | SELL | 31.3K | $2.20 | $69K |
| Dec 21, 22 | PRTKParatek Pharmaceuticals, Inc. | SELL | 15.8K | $1.99 | $31K |
| Dec 13, 22 | PRTKParatek Pharmaceuticals, Inc. | SELL | 31.9K | $1.96 | $63K |
| Dec 12, 22 | PRTKParatek Pharmaceuticals, Inc. | SELL | 19.5K | $1.98 | $39K |
| Oct 28, 22 | PRTKParatek Pharmaceuticals, Inc. | SELL | 6.0K | $3.47 | $21K |
| Aug 9, 22 | PRTKParatek Pharmaceuticals, Inc. | SELL | 28.6K | $2.66 | $76K |
| Dec 15, 21 | PRTKParatek Pharmaceuticals, Inc. | SELL | 17.8K | $4.27 | $76K |
| Dec 14, 21 | PRTKParatek Pharmaceuticals, Inc. | SELL | 8.6K | $4.37 | $38K |
| Dec 13, 21 | PRTKParatek Pharmaceuticals, Inc. | SELL | 5.1K | $4.42 | $22K |
| Aug 17, 21 | PRTKParatek Pharmaceuticals, Inc. | SELL | 32.0K | $5.12 | $164K |