Insider · CIK 0001688904

Kempster Thomas

Reports to the SEC for 1 company · NEW YORK, NY

sec.gov

Transactions

Companies

Filings

CIK

0001688904

Forms 4 and 5

Insider transactions

38 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-11	DTSTData Storage CorpS Sale	Director	SSale	−3,500 sh	$2.92	−$10.2K	18,500
2026-09-02	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+10K sh	—	—	10,000
2026-09-02	DTSTData Storage CorpA Award	Director	AAward	+12K sh	—	—	22,000
2026-09-02	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−10K sh	—	—	0
2026-01-29	DTSTData Storage Corp · Restricted Stock UnitA Award	Director	AAward	+10K sh	—	—	10,000
2026-01-14	DTSTData Storage CorpD Disposition to Issuer	Director	DDisposition to Issuer	−881K sh	$5.20	−$4.58M	0
2025-12-10	DTSTData Storage CorpS Sale	Director	SSale	−6,846 sh	$4.99	−$34.2K	871,972
2025-09-11	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+4,902 sh	—	—	870,484
2025-09-11	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+8,334 sh	—	—	878,818
2025-09-11	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−4,902 sh	—	—	0
2025-09-11	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−8,334 sh	—	—	0
2025-08-04	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+16.7K sh	$2.00	+$33.3K	855,778
2025-08-04	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+9,804 sh	$1.96	+$19.2K	865,582
2025-08-04	DTSTData Storage Corp · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−16.7K sh	—	—	8,334
2025-08-04	DTSTData Storage Corp · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−9,804 sh	—	—	4,902
2025-04-10	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+8,333 sh	—	—	841,445
2025-04-10	DTSTData Storage CorpS Sale	Director	SSale	−2,333 sh	$3.25	−$7,582.25	839,112
2025-04-10	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−8,333 sh	—	—	8,334
2025-03-03	DTSTData Storage CorpS Sale	Director	SSale	−1,373 sh	$3.83	−$5,258.59	833,112
2025-02-28	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+4,902 sh	—	—	834,485
2025-02-28	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−4,902 sh	—	—	4,902
2025-01-02	DTSTData Storage CorpS Sale	Director	SSale	−1,593 sh	$4.23	−$6,738.39	829,583
2024-12-10	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+2,500 sh	$2.40	+$6,000	831,176
2024-12-10	DTSTData Storage Corp · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−2,500 sh	—	—	0
2024-04-10	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+8,333 sh	—	—	828,676
2024-04-10	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−8,333 sh	—	—	16,667
2024-02-29	DTSTData Storage CorpM Exercise/Conversion	Director	MExercise/Conversion	+4,902 sh	—	—	820,343
2024-02-29	DTSTData Storage Corp · Restricted Stock UnitM Exercise/Conversion	Director	MExercise/Conversion	−4,902 sh	—	—	9,804
2024-01-02	DTSTData Storage CorpA Award	Director	AAward	+17.1K sh	—	—	815,441
2024-01-02	DTSTData Storage Corp · Stock OptionsA Award	Director	AAward	+15.5K sh	—	—	15,528
2023-04-10	DTSTData Storage Corp · Stock OptionsA Award	Director	AAward	+25K sh	—	—	43,873
2023-04-10	DTSTData Storage Corp · Restricted Stock UnitA Award	Director	AAward	+25K sh	—	—	39,706
2023-03-01	DTSTData Storage Corp · Stock OptionsA Award	Director	AAward	+14.7K sh	—	—	18,873
2023-03-01	DTSTData Storage Corp · Restricted Stock UnitA Award	Director	AAward	+14.7K sh	—	—	33,579
2019-12-11	DTSTData Storage Corp · Stock OptionsA Award	Director	AAward	+100K sh	$0.06	+$6,000	100,000
2019-02-15	DTSTData Storage CorpS Sale	Director	SSale	−10K sh	$0.17	−$1,700	32,314,968
2019-01-18	DTSTData Storage CorpS Sale	Director	SSale	−10K sh	$0.17	−$1,700	32,324,968
2017-12-14	DTSTData Storage Corp · Stock OptionsA Award	Director	AAward	+66.7K sh	$0.05	+$3,333.3	66,666

Recent filings

Accepted (ET)
Sep 144
Kempster Thomas0001731122-26-001242
SEC(opens sec.gov)
Sep 44
Kempster Thomas0001731122-26-001197
SEC(opens sec.gov)
Feb 24
Kempster Thomas0001731122-26-000166
SEC(opens sec.gov)
Jan 164
Kempster Thomas0001731122-26-000085
SEC(opens sec.gov)
Dec 124
Kempster Thomas0001731122-25-001668
SEC(opens sec.gov)
Sep 154
Kempster Thomas0001731122-25-001260
SEC(opens sec.gov)
Aug 54
Kempster Thomas0001731122-25-001073
SEC(opens sec.gov)
Apr 144
Kempster Thomas0001731122-25-000577
SEC(opens sec.gov)
Mar 44
Kempster Thomas0001731122-25-000329
SEC(opens sec.gov)

Companies

Data Storage CorpDirectorDTST

Address

C/O DATA STORAGE CORPORATION 244 5TH AVENUE, SUITE 2821

NEW YORK, NY, 10001