Filing Details

Accession Number:
0001567619-21-021600
Form Type:
4/A
Zero Holdings:
No
Publication Time:
2021-12-03 16:43:36
Reporting Period:
2021-10-01
Accepted Time:
2021-12-03 16:43:36
Original Submission Date:
2021-10-05
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1656634 Gritstone Bio Inc. GRTS Biological Products, (No Disgnostic Substances) (2836) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1754278 Erin Jones C/O Gritstone Bio, Inc.
5959 Horton Street, Suite 300
Emeryville CA 94608
See Remarks No 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 2021-10-01 1,000 $0.35 46,900 No 4 M Direct
Common Stock Disposition 2021-10-01 1,000 $10.68 45,900 No 4 S Direct
Common Stock Acquisiton 2021-10-04 1,000 $0.35 46,900 No 4 M Direct
Common Stock Disposition 2021-10-04 1,000 $10.71 45,900 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
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Stock Option (Right to Buy) Disposition 2021-10-01 1,000 $0.00 1,000 $0.35
Common Stock Stock Option (Right to Buy) Disposition 2021-10-04 1,000 $0.00 1,000 $0.35
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
34,971 2026-05-17 No 4 M Direct
33,971 2026-05-17 No 4 M Direct
Footnotes
  1. The transaction was made pursuant to a 10b5-1 plan in effect at the time of the transaction.
  2. Includes 25,900 Restricted Stock Units which are subject to vesting.
  3. Fully exercisable.