SEC Form 4 · Updated Daily
OPRX
— OPTIMIZERX CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Radoff Bradley Louis | Director | 2,289,200 | 2014-07-24 | S |
| Harrell David | Director | 2,090,750 | 2017-06-01 | D |
| KRANIAK RICHARD | 10%+ Owner | 1,522,250 | 2010-05-24 | A |
| AWM Investment Company, Inc. | 10%+ Owner | 1,245,928 | 2019-05-14 | S |
| Pinney Jack T | Director | 812,329 | 2018-01-10 | A |
| FEBBO WILLIAM J | Director · Officer | 600,852 | 2025-02-14 | F |
| Lang James Paul | Director | 433,837 | 2026-06-09 | A |
| Lester David | Director · Officer | 423,348 | 2014-05-01 | A |
| Silvestro Stephen L | Officer | 262,751 | 2026-08-20 | A |
| Stastney Shadron L. | Reporting Owner | 250,000 | 2013-09-20 | A |
| Majerowicz Thomas | Director | 222,750 | 2008-04-30 | — |
| Odence-Ford Marion | Officer | 148,007 | 2026-08-20 | A |
| Hamilton Terrence | Officer | 141,471 | 2019-03-27 | A |
| Stelmakh Edward | Officer | 121,791 | 2026-08-21 | F |
| Vos Ellen O'Connor | Director | 107,159 | 2026-06-09 | A |
| D'Silva Andrew J. | Officer | 99,246 | 2026-10-01 | F |
| WASSON GREGORY D | Director | 91,700 | 2026-06-09 | A |
| Merrell Brendan W. | Officer | 82,787 | 2026-08-20 | A |
| HALAS GUS D | Director | 80,926 | 2024-06-05 | M |
| Spangler Patrick D | Director | 78,732 | 2026-06-09 | A |
| Paramore Miriam J | Officer | 74,607 | 2021-12-02 | M |
| Greco Theresa | Officer | 71,954 | 2026-05-15 | F |
| Besch Doug | Officer | 66,876 | 2025-12-23 | F |
| KLEMA CATHY | Director | 56,137 | 2026-06-09 | A |
| BAKER DOUGLAS P | Officer | 44,796 | 2021-10-05 | M |
| Presti Mariyamma Varghese | Director | 30,318 | 2026-06-09 | A |
| Brooks James M | Officer | 10,000 | 2016-06-08 | P |
| Inman Todd | Officer | 771 | 2023-03-01 | M |
| McCarthy Brian Clark | Officer | 0 | 2024-08-02 | — |
| Archambault Bryan | Director | 0 | 2018-03-23 | — |
| Dillon Brian J | Officer | 0 | 2016-06-22 | — |
| WPP Luxembourg Gamma Three S.a.r.l. | 10%+ Owner | 0 | 2018-12-20 | S |
| WPP GROUP PLC | 10%+ Owner | 0 | 2018-12-20 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-01 | D'Silva Andrew J. | Tax withholding | 414 | $8.39 | 99,246 |
| 2026-09-01 | D'Silva Andrew J. | Tax withholding | 1,432 | $7.86 | 99,660 |
| 2026-08-21 | Stelmakh Edward | Tax withholding | 1,381 | $7.71 | 121,791 |
| 2026-08-21 | D'Silva Andrew J. | Tax withholding | 1,243 | $7.71 | 43,492 |
| 2026-08-21 | Odence-Ford Marion | Tax withholding | 1,529 | $7.71 | 90,407 |
| 2026-08-21 | Silvestro Stephen L | Tax withholding | 1,737 | $7.71 | 183,551 |
| 2026-08-21 | Merrell Brendan W. | Tax withholding | 1,020 | $7.71 | 25,187 |
| 2026-08-20 | Odence-Ford Marion | Grant / award | 57,600 | $0.00 | 148,007 |
| 2026-08-20 | Merrell Brendan W. | Grant / award | 57,600 | $0.00 | 82,787 |
| 2026-08-20 | D'Silva Andrew J. | Grant / award | 57,600 | $0.00 | 101,092 |
| 2026-08-20 | Silvestro Stephen L | Grant / award | 79,200 | $0.00 | 262,751 |
| 2026-06-09 | WASSON GREGORY D | Grant / award | 34,517 | $0.00 | 91,700 |
| 2026-06-09 | Vos Ellen O'Connor | Grant / award | 34,517 | $0.00 | 107,159 |
| 2026-06-09 | Spangler Patrick D | Grant / award | 34,517 | $0.00 | 78,732 |
| 2026-06-09 | Presti Mariyamma Varghese | Grant / award | 17,258 | $0.00 | 30,318 |
| 2026-06-09 | Lang James Paul | Grant / award | 34,517 | $0.00 | 433,837 |
| 2026-06-09 | KLEMA CATHY | Grant / award | 34,517 | $0.00 | 56,137 |
| 2026-05-15 | Silvestro Stephen L | Tax withholding | 5,219 | $5.21 | 185,288 |
| 2026-05-15 | Greco Theresa | Tax withholding | 879 | $5.21 | 71,075 |
| 2026-05-15 | Greco Theresa | Tax withholding | 914 | $5.21 | 71,954 |
| 2026-05-01 | Presti Mariyamma Varghese | Grant / award | 13,060 | $0.00 | 13,060 |
| 2026-02-11 | Odence-Ford Marion | Option exercise (derivative) | 4,000 | $0.00 | 0 |
| 2026-02-11 | Odence-Ford Marion | Tax withholding | 1,386 | $9.23 | 91,936 |
| 2026-02-11 | Odence-Ford Marion | Option exercise | 4,000 | — | 93,322 |
| 2025-12-23 | Stelmakh Edward | Tax withholding | 3,658 | $12.74 | 123,172 |
| 2025-12-23 | Besch Doug | Tax withholding | 4,079 | $12.74 | 66,876 |
| 2025-12-23 | Odence-Ford Marion | Tax withholding | 4,051 | $12.74 | 89,322 |
| 2025-12-23 | Silvestro Stephen L | Tax withholding | 3,361 | $12.74 | 190,507 |
| 2025-12-23 | Greco Theresa | Tax withholding | 1,420 | $12.74 | 72,868 |
| 2025-12-23 | Silvestro Stephen L | Tax withholding | 3,361 | $12.74 | 190,507 |
| 2025-12-19 | Besch Doug | Option exercise (derivative) | 1,964 | $0.00 | 1,964 |
| 2025-12-19 | Besch Doug | Tax withholding | 581 | $13.51 | 70,955 |
| 2025-12-19 | Besch Doug | Option exercise | 1,964 | $0.00 | 71,536 |
| 2025-12-19 | D'Silva Andrew J. | Tax withholding | 703 | $13.51 | 44,735 |
| 2025-12-19 | Merrell Brendan W. | Tax withholding | 289 | $13.51 | 26,207 |
| 2025-12-19 | Odence-Ford Marion | Option exercise (derivative) | 3,928 | $0.00 | 3,928 |
| 2025-12-19 | Odence-Ford Marion | Tax withholding | 1,153 | $13.51 | 93,373 |
| 2025-12-19 | Odence-Ford Marion | Option exercise | 3,928 | $0.00 | 94,526 |
| 2025-12-19 | Silvestro Stephen L | Option exercise (derivative) | 6,546 | $0.00 | 6,547 |
| 2025-12-19 | Silvestro Stephen L | Tax withholding | 1,594 | $13.51 | 193,868 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.