Casper Breum serves as Executive at Spero Therapeutics, Inc., where they oversee executive responsibilities. Since joining the company, Casper Breum has executed 4 insider transactions totaling $3.0M, demonstrating a bullish approach to their equity position. Their most recent transaction on Nov 6, 2017 involved exercising options for 179,450 shares valued at $0.
Casper Breum currently holds 468,552 shares of Spero Therapeutics, Inc. (SPRO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Casper Breum has been a net buyer of SPRO stock. They have purchased $3.0M and sold $0 worth of shares.
Casper Breum's most recent insider trade was on Nov 6, 2017, when they sold 179,450 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Nov 6, 2017 | SPRO | $0 | Conversion | 289,102 | $N/A | Discretionary |
| Nov 6, 2017 | SPRO | $3.0M | Purchase | 214,285 | $14.00 | Discretionary |