Data Storage Corp (DTST) Insider Ownership

Historic Ownership Trends

Data spanning the past 90 days through December 31, 2025 reveals that Data Storage's three principal insider shareholders consist of Director Harold J Schwartz (937.58K shares), Director Thomas Kempster (871.97K shares), Chairman And Ceo Charles M. Piluso (413.29K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Harold J Schwartz 937,582 18 Dec, 2025
Thomas Kempster 871,972 12 Dec, 2025
Charles M. Piluso Chairman And Ceo 413,291 12 Dec, 2025
Clifford Stein 280,850 11 Jun, 2025
Mark Alexander Wyllie Executive Vice President 100,000 14 Jun, 2022
John Argen 46,252 14 Oct, 2025
Matthew Grover 43,352 15 Dec, 2025
Christos Panagiotakos Chief Financial Officer 40,507 12 Dec, 2025
Todd A. Correll 33,540 15 Dec, 2025
Lawrence A. Maglione 24,752 15 Dec, 2025
Joseph B. Hoffman 12,500 11 Oct, 2023
Uwayne A. Mitchell 11,248 11 Jun, 2025
Nancy Stallone 11,248 11 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
16 Dec, 2025 Harold J Schwartz Common Stock A 9,804 $1.96 910,563 D M
16 Dec, 2025 Harold J Schwartz Common Stock A 16,667 $2.00 927,230 D M
16 Dec, 2025 Harold J Schwartz Common Stock A 10,352 $3.22 937,582 D M
12 Dec, 2025 Matthew Grover Common Stock A 627 $2.16 33,542 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $3.23 36,042 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $2.45 38,542 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $2.04 41,042 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $1.48 43,542 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $1.82 46,042 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $2.33 48,542 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $3.24 51,042 D M
12 Dec, 2025 Matthew Grover Common Stock A 2,500 $2.88 53,542 D M
12 Dec, 2025 Matthew Grover Common Stock D 10,190 $4.97 43,352 D F
11 Dec, 2025 Todd A. Correll Common Stock A 627 $2.16 34,167 D M
11 Dec, 2025 Lawrence A. Maglione Common Stock A 1,667 $2.00 35,142 D M
11 Dec, 2025 Todd A. Correll Common Stock A 2,500 $3.23 36,667 D M
11 Dec, 2025 Lawrence A. Maglione Common Stock A 2,500 $2.16 37,912 D M
11 Dec, 2025 Lawrence A. Maglione Common Stock A 2,500 $3.23 40,412 D M
11 Dec, 2025 Todd A. Correll Common Stock A 2,500 $2.45 39,167 D M
11 Dec, 2025 Lawrence A. Maglione Common Stock A 2,500 $2.45 42,912 D M