Kempster Thomas
SEC insider (Form 3/4/5 filer). CIK 0001688904. Director at Data Storage Corp (DTST). 16 reported Form 4/5 transactions since Sep 2024; latest on Sep 11, 2026. Located in NEW YORK, NY.
Companies Kempster Thomas has filed insider reports for
- Data Storage Corp (DTST): Director
Kempster Thomas
CIK: 0001688904
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Data Storage Corp
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- Sep 11, 2026DTST
Data Storage Corp
SaleDirect3.5K shares at avg. $2.92$10K - Sep 2, 2026DTST
Data Storage Corp
ExerciseDirect10K shares- - Sep 2, 2026DTST
Data Storage Corp
AwardDirect12K shares- - Jan 29, 2026DTST
Data Storage Corp
AwardDirectRestricted Stock Unit
10K shares- - Jan 14, 2026DTST
Data Storage Corp
DispositionDirect881.5K shares at avg. $5.20$4.6M - Dec 10, 2025DTST
Data Storage Corp
SaleDirect6.8K shares at avg. $4.99$34K - Sep 11, 2025DTST
Data Storage Corp
ExerciseDirect4.9K shares- - Sep 11, 2025DTST
Data Storage Corp
ExerciseDirect8.3K shares- - Aug 4, 2025DTST
Data Storage Corp
ExerciseDirect16.7K shares at avg. $2.00$33K - Aug 4, 2025DTST
Data Storage Corp
ExerciseDirect9.8K shares at avg. $1.96$19K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 11, 2026 | DTST Data Storage Corp | Sale | 3,500 | $2.92 | $10,238 | Direct |
| Sep 2, 2026 | DTST Data Storage Corp | Exercise | 10,000 | - | $0 | Direct |
| Sep 2, 2026 | DTST Data Storage Corp | Award | 12,000 | - | $0 | Direct |
| Jan 29, 2026 | DTST Data Storage Corp | Award Restricted Stock Unit | 10,000 | - | - | Direct |
| Jan 14, 2026 | DTST Data Storage Corp | Disposition | 881,472 | $5.20 | $4,583,654 | Direct |
| Dec 10, 2025 | DTST Data Storage Corp | Sale | 6,846 | $4.99 | $34,185 | Direct |
| Sep 11, 2025 | DTST Data Storage Corp | Exercise | 4,902 | - | - | Direct |
| Sep 11, 2025 | DTST Data Storage Corp | Exercise | 8,334 | - | - | Direct |
| Aug 4, 2025 | DTST Data Storage Corp | Exercise | 16,666 | $2.00 | $33,332 | Direct |
| Aug 4, 2025 | DTST Data Storage Corp | Exercise | 9,804 | $1.96 | $19,216 | Direct |
1-10 of 16 transactions