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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001108565-21-000004
Filing Date
2021-11-19
Accepted
2021-11-19 14:54:34
Documents
1
Period of Report
2021-11-17

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 4  
1 PRIMARY DOCUMENT primary_doc.xml 4 5022
  Complete submission text file 0001108565-21-000004.txt   6495
Mailing Address 2200 ROSE AVENUE SUITE 4100 EAST DALLAS TX 75201
Business Address
WINSPEAR ROBERT L (Reporting) CIK: 0001108565 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-41051 | Film No.: 211428002

Mailing Address 5430 LBJ FREEWAY SUITE 1485 DALLAS TX 75240
Business Address 5430 LBJ FREEWAY SUITE 1485 DALLAS TX 75240 972-726-9203
BLACKBOXSTOCKS INC. (Issuer) CIK: 0001567900 (see all company filings)

IRS No.: 453598066 | State of Incorp.: NV | Fiscal Year End: 1231
SIC: 7371 Services-Computer Programming Services