Spero Therapeutics Inc. (SPRO)

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Insider Trading: Purchases
Insider Price Amount Relationship Remaining Holdings Date Form 4
$18.93 48,645 Large Shareholder 4,358,030 2021-08-31 Filing
$17.87 44,042 Large Shareholder 4,309,385 2021-08-30 Filing
$16.88 13,957 Large Shareholder 4,265,343 2021-08-27 Filing
$16.55 22,982 Large Shareholder 4,251,386 2021-08-26 Filing
$16.28 40,170 Large Shareholder 4,228,404 2021-08-24 Filing
$16.33 137,835 Large Shareholder 4,188,234 2021-08-23 Filing
$14.86 221,190 Large Shareholder 4,050,399 2021-08-20 Filing
$12.50 80,000 Large Shareholder 1,934,006 2018-07-17 Filing
$14.00 428,571 Large Shareholder 1,854,006 2017-11-06 Filing
$14.00 428,571 Director 2,408,128 2017-11-06 Filing
$14.00 428,571 Director 1,854,006 2017-11-06 Filing
$14.00 5,000 Officer 15,181 2017-11-06 Filing
$14.00 1,500 Officer 1,500 2017-11-06 Filing
$14.00 214,285 Director 1,091,774 2017-11-06 Filing