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Mailing Address 6940 COLUMBIA GATEWAY DRIVE, SUITE 470 COLUMBIA MD 21046-3308
Business Address 6940 COLUMBIA GATEWAY DRIVE, SUITE 470 COLUMBIA MD 21046-3308 4109707874
GSE SYSTEMS INC CIK#: 0000944480 (see all company filings)

SIC: 7372 - SERVICES-PREPACKAGED SOFTWARE
State location: MD | State of Inc.: DE | Fiscal Year End: 1231
(CF Office: 06 Technology)
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Items 1 - 40  0000944480 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001213900-24-030672 (34 Act)  Size: 48 KB
2024-04-05 005-45371
24825218
10-K/A  Documents   Interactive Data [Amend] Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001140361-24-017333 (34 Act)  Size: 254 KB
2024-04-02 001-14785
24815636
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001140361-24-017131 (34 Act)  Size: 12 MB
2024-04-02 001-14785
24812158
NT 10-K  Documents Notification of inability to timely file Form 10-K 405, 10-K, 10-KSB 405, 10-KSB, 10-KT, or 10-KT405
Acc-no: 0001140361-24-017079 (34 Act)  Size: 15 KB
2024-04-02 001-14785
24812048
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001140361-24-016903 (34 Act)  Size: 874 KB
2024-04-01 001-14785
24809148
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000919574-24-001295 (34 Act)  Size: 165 KB
2024-02-14 005-45371
24633866
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000929638-24-000567 (34 Act)  Size: 78 KB
2024-02-13 005-45371
24631291
8-K  Documents Current report, items 1.01 and 9.01
Acc-no: 0000944480-24-000011 (34 Act)  Size: 55 KB
2024-02-13 001-14785
24626181
SC 13G/A  Documents [Amend] Statement of acquisition of beneficial ownership by individuals
Acc-no: 0001193125-24-029133 (34 Act)  Size: 82 KB
2024-02-09 005-45371
24611090
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-24-000014 (33 Act)  Size: 1 KB
2023-12-29 16:00:00 333-276128
24500003
CORRESP  Documents [Cover]Correspondence
Acc-no: 0000944480-23-000101 Size: 4 KB
2023-12-28
UPLOAD  Documents [Cover]SEC-generated letter
Acc-no: 0000000000-23-013936 Size: 40 KB
2023-12-21
S-3/A  Documents [Amend] Registration statement under Securities Act of 1933
Acc-no: 0001140361-23-058525 (33 Act)  Size: 297 KB
2023-12-20 333-276128
231499366
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0001140361-23-058227 (33 Act)  Size: 397 KB
2023-12-19 333-276128
231495116
8-K  Documents Current report, item 3.02
Acc-no: 0000944480-23-000099 (34 Act)  Size: 15 KB
2023-12-18 001-14785
231493914
SC 13G  Documents Statement of acquisition of beneficial ownership by individuals
Acc-no: 0000929638-23-003420 (34 Act)  Size: 77 KB
2023-12-12 005-45371
231481915
8-K  Documents Current report, item 3.02
Acc-no: 0000944480-23-000097 (34 Act)  Size: 15 KB
2023-12-06 001-14785
231469775
RW  Documents Registration Withdrawal Request
Acc-no: 0000944480-23-000095 (NE Act)  Size: 15 KB
2023-12-01 333-275791
231458799
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0000944480-23-000093 (33 Act)  Size: 119 KB
2023-11-30 333-275791
231453478
8-K  Documents Current report, item 3.01
Acc-no: 0000944480-23-000087 (34 Act)  Size: 13 KB
2023-11-17 001-14785
231419346
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001140361-23-053281 (34 Act)  Size: 9 MB
2023-11-14 001-14785
231407628
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001140361-23-053239 (34 Act)  Size: 562 KB
2023-11-14 001-14785
231405892
8-K  Documents Current report, item 3.01
Acc-no: 0000944480-23-000085 (34 Act)  Size: 18 KB
2023-11-03 001-14785
231376851
8-K  Documents Current report, items 3.03, 5.03, 8.01, and 9.01
Acc-no: 0000944480-23-000083 (34 Act)  Size: 313 KB
2023-10-26 001-14785
231350501
8-K  Documents Current report, items 1.01 and 9.01
Acc-no: 0000944480-23-000081 (34 Act)  Size: 52 KB
2023-10-06 001-14785
231314393
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001140361-23-040105 (34 Act)  Size: 9 MB
2023-08-16 001-14785
231179119
NT 10-Q  Documents Notification of inability to timely file Form 10-Q or 10-QSB
Acc-no: 0001140361-23-039871 (34 Act)  Size: 17 KB
2023-08-15 001-14785
231174489
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001140361-23-039662 (34 Act)  Size: 518 KB
2023-08-14 001-14785
231169871
8-K  Documents Current report, items 5.02 and 9.01
Acc-no: 0000944480-23-000072 (34 Act)  Size: 19 KB
2023-07-28 001-14785
231123394
8-K  Documents Current report, items 1.01, 2.03, 3.02, 7.01, and 9.01
Acc-no: 0000944480-23-000056 (34 Act)  Size: 617 KB
2023-06-26 001-14785
231042653
8-K  Documents Current report, item 5.07
Acc-no: 0000944480-23-000048 (34 Act)  Size: 26 KB
2023-06-13 001-14785
231009772
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001140361-23-024740 (34 Act)  Size: 7 MB
2023-05-15 001-14785
23923506
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001140361-23-024690 (34 Act)  Size: 417 KB
2023-05-15 001-14785
23922021
8-K  Documents Current report, item 5.02
Acc-no: 0000944480-23-000047 (34 Act)  Size: 12 KB
2023-05-08 001-14785
23895906
8-K  Documents Current report, item 3.01
Acc-no: 0000944480-23-000045 (34 Act)  Size: 16 KB
2023-05-04 001-14785
23889978
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0000944480-23-000043 (34 Act)  Size: 248 KB
2023-05-02 001-14785
23879035
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0000944480-23-000042 (34 Act)  Size: 679 KB
2023-05-02 001-14785
23878990
8-K  Documents Current report, items 2.02 and 9.01
Acc-no: 0000944480-23-000036 (34 Act)  Size: 72 KB
2023-04-25 001-14785
23841994
PRE 14A  Documents Other preliminary proxy statements
Acc-no: 0000944480-23-000033 (34 Act)  Size: 450 KB
2023-04-17 001-14785
23824775
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001140361-23-018700 (34 Act)  Size: 11 MB
2023-04-17 001-14785
23824754