← All stocks

ONE STOP SYSTEMS, INC.

OSS Net selling
CIK 0001394056 #3645 in the set updated 21 Sep 2026
Bought (120 mo)
$355.53K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$6.49M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$6.49M
63 of 63 sales
Net
−$6.13M
−$6.13M against sales at will

By person

21 insiders · 127 transactions
21.2×

Mike Knowles holds 21.2 times base salary in stock. $10.40M of shares against $490.33K in salary for 2025.

Salary from the company's own proxy. The shares are what Mike Knowles last reported holding, valued at $17.62, the price Common Stock was last bought or sold at on the open market here, on 26 May 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Cooper Steve D
10% owner
$26.06K (1)
$4.49M (33)
−$4.47M
10,884,896
$191.79M
−8.8%
Reardon James M
VP of Sales
$1.05M (12)
−$1.05M
1,019,312
$17.96M
+1,489%
POTASHNER KENNETH F
Director
$283.77K (2)
−$283.77K
398,601
$7.02M
+785.8%
Ison James
CPO
$175.43K (4)
−$175.43K
427,695
$7.54M
+221.4%
Manko Joseph M. Jr.
Director
$146.75K (2)
+$146.75K
1,195,899
$21.07M
+8.7%
BASSETT DAVID GEORGE
Director
$141.12K (1)
−$141.12K
24,984
$440.22K
RAUN DAVID
Director
$139.83K (24)
+$139.83K
583,556
$10.28M
+269.4%
Matz Gregory W
Director
$10.13K (2)
$140.16K (1)
−$130.04K
81,414
$1.43M
+3,157%
REARDON JOHN RALPH
Director
$114.59K (9)
−$114.59K
392,965
$6.92M
+2.4%
Herbets Mitchell H
Director
$88.10K (1)
−$88.10K
48,984
$863.10K
Lowman Teresita M.
Director
$11.82K (1)
+$11.82K
29,930
$527.37K
Harrison Jack
Director
$11.35K (1)
+$11.35K
92,435
$1.63M
+342.2%
Messinger Gioia
Director
$7.56K (2)
+$7.56K
49,690
$875.54K
KNOWLES MICHAEL
Chief Executive Officer
$2.03K (1)
+$2.03K
590,141
$10.40M
JONES RANDY G
Director
1,271,249
$22.40M
+0.6%
Morrison John W Jr.
Chief Financial Officer
305,381
$5.38M
Bressner Josef
Managing Director, Bressner
216,260
$3.81M
+103.1%
Carpenter William
Director
199,236
$3.51M
+11.7%
Gabel Daniel G.
Chief Financial Officer
150,064
$2.64M
Dumont Michael J.
Director
119,833
$2.11M
+82.0%
Sentovich Kimberly C.
Director
39,266
$691.87K

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Insider
Date
Role
Action
Shares
Price
Amount
POTASHNER KENNETH F
9 Jul 2024
Director
Exercised, kept
40,000
$0.46
$18.40K
RAUN DAVID
1 Apr 2024
Director
Exercised, kept
13,953
$2.15
$30.00K
POTASHNER KENNETH F
1 Apr 2024
Director
Exercised, kept
19,767
$2.15
$42.50K
Ison James
29 Jan 2024
CPO
Exercised, kept indirect
7,222
$1.08
$7.80K
Ison James
18 Aug 2023
CPO
Exercised, kept indirect
1,009
$1.08
$1.09K
Ison James
18 Aug 2023
CPO
Exercised, kept indirect
14,587
$0.46
$6.71K
POTASHNER KENNETH F
26 Jun 2023
Director
Exercised, kept
28,090
$1.78
$50.00K
Ison James
3 Feb 2023
Chief Sales/Marketing Officer
Exercised, kept indirect
18,261
$0.46
$8.40K
Ison James
28 Jul 2022
Chief Sales/Marketing Officer
Exercised, kept indirect
12,609
$0.46
$5.80K
Ison James
6 Jan 2022
Chief Sales/Marketing Officer
Exercised, kept indirect
4,543
$0.46
$2.09K
Ison James
6 Jan 2022
Chief Sales/Marketing Officer
Exercised, kept indirect
4,092
$0.76
$3.11K
POTASHNER KENNETH F
6 Jan 2022
Director
Exercised, kept
25,000
$0.76
$19.00K
POTASHNER KENNETH F
22 Nov 2021
Director
Exercised, kept
50,000
$0.76
$38.00K
Ison James
18 Aug 2021
Chief Sales/Marketing Officer
Exercised, kept indirect
16,000
$0.76
$12.16K
Harrison Jack
22 Jul 2021
Director
Exercised, kept
19,767
$2.15
$42.50K
Ison James
5 Jan 2021
Chief Sales/Marketing Officer
Exercised, kept indirect
5,263
$0.76
$4.00K
POTASHNER KENNETH F
4 Dec 2020
Director
Exercised, kept
13,158
$0.76
$10.00K
POTASHNER KENNETH F
4 Dec 2020
Director
Exercised, kept
32,895
$0.76
$25.00K
POTASHNER KENNETH F
9 Jul 2020
Director
Exercised, kept
65,790
$0.76
$50.00K
Ison James
2 Apr 2020
Chief Sales/Marketing Officer
Exercised, kept
2,105
$0.76
$1.60K
Ison James
13 Dec 2019
VP of Sales and Marketing
Exercised, kept
4,737
$0.76
$3.60K
POTASHNER KENNETH F
3 May 2019
Director
Exercised, kept
25,000
$0.75
$18.75K
Ison James
30 Apr 2019
VP of Sales and Marketing
Exercised, kept
1,842
$0.76
$1.40K
Ison James
28 Dec 2018
Vice President of Sales
Exercised, kept
1,579
$0.76
$1.20K
Ison James
26 Sep 2018
Vice President of Sales
Exercised, kept
1,329
$0.76
$1.01K
Ison James
26 Sep 2018
Vice President of Sales
Exercised, kept
171
$0.76
$129.96
Ison James
27 Jun 2018
Vice President of Sales
Exercised, kept
1,500
$0.76
$1.14K
Ison James
30 Mar 2018
Vice President of Sales
Exercised, kept
1,579
$0.76
$1.20K
Ison James
1 Mar 2018
Vice President of Sales
Exercised, kept
2,895
$0.76
$2.20K
POTASHNER KENNETH F
15 Feb 2018
Director
Exercised, kept
25,000
$1.00
$25.00K

What was left out

Form 4 filings counted 284
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 12
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 63
Transactions with no price 0
Shares from compensation/vesting 5,974,820
Sales filed before the plan box existed 57
History held since 9 Feb 2018