Filing Details

Accession Number:
0000899243-18-019566
Form Type:
4
Zero Holdings:
No
Publication Time:
2018-07-06 21:41:52
Reporting Period:
2018-07-05
Accepted Time:
2018-07-06 21:41:52
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1701108 Spero Therapeutics Inc. SPRO Pharmaceutical Preparations (2834) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1720974 Ankit Mahadevia C/O Spero Therapeutics, Inc.
675 Massachusetts Avenue, 14Th Floor
Cambridge MA 02139
See Remarks Yes Yes No No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Acquisiton 2018-07-05 3,076 $5.90 68,893 No 4 M Direct
Common Stock Disposition 2018-07-05 3,076 $17.62 65,817 No 4 S Direct
Common Stock Acquisiton 2018-07-06 1,600 $5.90 67,417 No 4 M Direct
Common Stock Disposition 2018-07-06 500 $17.50 66,917 No 4 S Direct
Common Stock Disposition 2018-07-06 100 $17.55 66,817 No 4 S Direct
Common Stock Disposition 2018-07-06 400 $17.58 66,417 No 4 S Direct
Common Stock Disposition 2018-07-06 100 $17.62 66,317 No 4 S Direct
Common Stock Disposition 2018-07-06 100 $17.71 66,217 No 4 S Direct
Common Stock Disposition 2018-07-06 200 $17.90 66,017 No 4 S Direct
Common Stock Disposition 2018-07-06 200 $17.92 65,817 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 M Direct
No 4 S Direct
No 4 M Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
No 4 S Direct
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Stock Option (Right to Buy) Disposition 2018-07-05 3,076 $0.00 3,076 $5.90
Common Stock Stock Option (Right to Buy) Disposition 2018-07-06 1,600 $0.00 1,600 $5.90
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
120,488 2027-07-05 No 4 M Direct
118,888 2027-07-05 No 4 M Direct
Footnotes
  1. The option exercises and related sales (totaling 4,676 shares) reported in this Form 4 were made pursuant to a Rule 10b5-1 trading plan previously entered into by the Reporting Person in December 2017.
  2. Amount includes 65,817 shares of common stock held by the Mahadevia-Mehta Family Trust, of which the Reporting Person is a trustee.
  3. All shares underlying this option were fully vested as of July 6, 2017.