Thomas Kempster

Companies

• Data Storage CorpEVP Mar 1, 2023 to now¹
• Data Storage CorpBoard member Jan 25, 2019 to now²
• Data Storage CorpChief operating officer Jan 25, 2019 to Feb 25, 2019²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• DSData Storage Corp DTST18,500 shares³$55.7K at $3.01Sep 11, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 11, 2026Sold 3,500 shares at $2.93 of Data Storage Corp³
• Sep 2, 2026Granted 12,000 shares of Data Storage Corp⁴
• Sep 2, 2026Exercised options 10,000 shares of Data Storage Corp⁴
• Jan 14, 2026Returned to company 881,472 shares at $5.20 of Data Storage Corp⁵
• Dec 10, 2025Sold 6,846 shares at $4.99 of Data Storage Corp⁶
• Sep 11, 2025Exercised options 8,334 shares of Data Storage Corp⁷
• Sep 11, 2025Exercised options 4,902 shares of Data Storage Corp⁷
• Aug 4, 2025Exercised options 9,804 shares at $1.96 of Data Storage Corp⁸
• Aug 4, 2025Exercised options 16,666 shares at $2.00 of Data Storage Corp⁸
• Apr 10, 2025Sold 2,333 shares at $3.25 of Data Storage Corp⁹
• Apr 10, 2025Exercised options 8,333 shares of Data Storage Corp⁹
• Mar 3, 2025Sold 1,373 shares at $3.83 of Data Storage Corp¹⁰
• Feb 28, 2025Exercised options 4,902 shares of Data Storage Corp¹⁰
• Jan 2, 2025Sold 1,593 shares at $4.23 of Data Storage Corp¹¹
• Dec 10, 2024Exercised options 2,500 shares at $2.40 of Data Storage Corp¹²
• Apr 10, 2024Exercised options 8,333 shares of Data Storage Corp¹³
• Feb 29, 2024Exercised options 4,902 shares of Data Storage Corp¹⁴
• Jan 2, 2024Granted 17,065 shares of Data Storage Corp¹⁵