TSS, Inc. (TSSI) Insider Ownership

Historic Insider Ownership Trends

Tss's three largest insider shareholders as of March 23, 2026 are John K Penver (Chief Financial Officer, 879.14K shares), Darryll E Dewan (Chief Executive Officer, 599.47K shares), Kieran Brennan (Senior Vice President, 291.14K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
John K Penver Chief Financial Officer 879,139 0 21 May, 2024
Darryll E Dewan Chief Executive Officer 599,471 0 02 Feb, 2026
Kieran Brennan Senior Vice President 291,137 0 25 Feb, 2026
Karl Todd Marrott Chief Operating Officer 286,545 0 25 Feb, 2026
Kieran Brennan Senior Vice President 279,137 0 17 Mar, 2026
Richard M. Metzler 153,784 0 16 Jan, 2026
James Mulford Iii Oliver Cro 104,504 0 04 Dec, 2024
Peter H Woodward 19,358 0 16 Jan, 2026
Michael John Fahy 8,784 0 16 Jan, 2026
Michael John Fahy 0 5,000 19 Nov, 2025
Darryll E Dewan President And Ceo 0 5,000 03 Dec, 2024
Vivek Mohindra 3,784 0 16 Jan, 2026

* 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 Mar, 2026 Kieran Brennan Common Stock D 12,000 $12.27 279,137 D S
24 Feb, 2026 Kieran Brennan Common Stock D 9,019 $8.45 291,137 D F
24 Feb, 2026 Kieran Brennan Common Stock D 9,019 $8.45 291,137 D F
24 Feb, 2026 Karl Todd Marrott Common Stock D 8,117 $8.45 286,545 D F
29 Jan, 2026 Darryll E Dewan Common Stock D 25,960 $11.20 599,471 D F
16 Jan, 2026 Darryll E Dewan Common Stock D 26,903 $12.05 625,431 D F
16 Jan, 2026 Karl Todd Marrott Common Stock D 12,175 $12.05 294,662 D F
14 Jan, 2026 Darryll E Dewan Common Stock A 37,843 $0.00 652,334 D A
14 Jan, 2026 Peter H Woodward Common Stock A 3,784 $0.00 19,358 D A
14 Jan, 2026 Richard M. Metzler Common Stock A 3,784 $0.00 153,784 D A
14 Jan, 2026 Karl Todd Marrott Common Stock A 29,801 $0.00 306,837 D A
14 Jan, 2026 Kieran Brennan Common Stock A 12,181 $0.00 300,156 D A
14 Jan, 2026 Kieran Brennan Common Stock A 12,181 $0.00 300,156 D A
14 Jan, 2026 Michael John Fahy Common Stock A 3,784 $0.00 8,784 D A
14 Jan, 2026 Vivek Mohindra Common Stock A 3,784 $0.00 3,784 D A
01 Jan, 2026 Darryll E Dewan Common Stock D 13,539 $7.07 614,491 D F
01 Jan, 2026 Karl Todd Marrott Common Stock D 13,539 $7.07 277,036 D F
09 Dec, 2025 Peter H Woodward Common Stock D 30,000 $8.82 21,700 I S
11 Dec, 2025 Peter H Woodward Common Stock D 21,700 $8.30 0 I S
03 Dec, 2025 Karl Todd Marrott Common Stock D 5,000 $0.00 290,575 D G