Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2024-11-14 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Grant | 46,153 | $3.25 | $149,997 |
| 2024-11-14 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Grant | 30,756 | $3.25 | $99,957 |
| 2024-09-18 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Exercise | 25,723 | $5.64 | $145,078 |
| 2024-09-18 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Exercise | 214,286 | $5.64 | $1M |
| 2024-09-18 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Exercise | 38,610 | $5.64 | $217,760 |
| 2024-09-18 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Exercise | 29,557 | $5.64 | $166,701 |
| 2024-09-18 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Exercise | 9,768 | $5.64 | $55,092 |
| 2024-09-18 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Exercise | 35,715 | $5.64 | $201,433 |
| 2024-08-09 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 100 | $4.51 | $451 |
| 2024-08-06 | FCMI Parent Co. | TenPercentOwner | +Buy | 2,753 | $4.92 | $13,545 |
| 2024-08-05 | FCMI Parent Co. | TenPercentOwner | +Buy | 3,653 | $4.60 | $16,804 |
| 2024-08-01 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 11,703 | $4.72 | $55,238 |
| 2024-07-31 | FCMI Parent Co. | TenPercentOwner | +Buy | 16,128 | $7.40 | $119,347 |
| 2024-07-31 | FCMI Parent Co. | TenPercentOwner | +Buy | 83,243 | $6.41 | $533,588 |
| 2024-07-31 | FCMI Parent Co. | TenPercentOwner | +Buy | 100,629 | $5.74 | $577,610 |
| 2024-05-30 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 861 | $5.20 | $4,477 |
| 2024-05-29 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 957 | $4.95 | $4,737 |
| 2024-05-10 | Van Strydonck, Gerald E. | Director | +Grant | 543 | $5.75 | $3,122 |
| 2024-04-19 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 282 | $4.73 | $1,334 |
| 2024-03-28 | FCMI Parent Co. | TenPercentOwner | +Grant | 102,960 | $7.77 | $799,999 |
| 2024-03-28 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Grant | 38,610 | $7.77 | $300,000 |
| 2024-02-08 | FCMI Parent Co. | TenPercentOwner | +Grant | 1,655,172 | $0.73 | $1M |
| 2024-02-08 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Grant | 413,793 | $0.73 | $302,069 |
| 2023-12-26 | Van Strydonck, Gerald E. | Director | −Sell | 3,149 | $0.72 | $2,267 |
| 2023-12-08 | Van Strydonck, Gerald E. | Director | −Sell | 1,334 | $0.67 | $894 |
| 2023-10-04 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Buy | 5,000 | $0.97 | $4,850 |
| 2023-10-03 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 3,000,000 | $1.00 | $3M |
| 2023-10-03 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Buy | 5,000 | $0.93 | $4,650 |
| 2023-10-03 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Buy | 500,000 | $1.00 | $500,000 |
| 2023-09-22 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Grant | 2,051,282 | $0.16 | $328,205 |
| 2023-05-15 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Grant | 6,711,552 | $0.37 | $2M |
| 2023-03-31 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Grant | 731,707 | $0.41 | $300,000 |
| 2023-03-31 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Grant | 4,146,341 | $0.41 | $2M |
| 2022-12-06 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Inherited | 3,988 | — | — |
| 2022-11-23 | Van Strydonck, Gerald E. | Director | +Grant | 47,232 | $0.53 | $25,033 |
| 2022-11-23 | Frieberg Jacob B. | Director | +Grant | 188,928 | $0.53 | $100,132 |
| 2022-11-23 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Grant | 1,511,430 | $0.53 | $801,058 |
| 2022-11-23 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Grant | 3,778,575 | $0.53 | $2M |
| 2022-02-23 | Van Strydonck, Gerald E. | Director | +Buy | 18,000 | $1.32 | $23,760 |
| 2022-02-23 | Van Strydonck, Gerald E. | Director | +Buy | 2,000 | $1.30 | $2,600 |
| 2022-01-27 | Zauderer Maurice | Director,Officer | +Buy | 1,801,801 | $1.11 | $2M |
| 2022-01-27 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,801,801 | $1.11 | $2M |
| 2022-01-27 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,801,801 | $1.11 | $2M |
| 2022-01-27 | Frieberg Jacob B. | Director | +Buy | 90,090 | $1.11 | $100,000 |
| 2021-06-25 | Frieberg Jacob B. | Director | +Conversion | 4,420 | — | — |
| 2021-06-25 | Frieberg Jacob B. | Director | +Conversion | 4,121 | — | — |
| 2021-06-25 | Frieberg Jacob B. | Director | +Conversion | 4,420 | — | — |
| 2021-05-24 | FCMI Parent Co. | TenPercentOwner | +Conversion | 967,983 | — | — |
| 2021-05-24 | FCMI Parent Co. | TenPercentOwner | +Conversion | 1,180,051 | — | — |
| 2020-09-03 | Royer Scott E. | Officer | +Exercise | 500 | $3.90 | $1,950 |
| 2020-07-27 | Leonard John E. | Officer | +Exercise | 1,000 | $3.90 | $3,900 |
| 2020-07-27 | Leonard John E. | Officer | +Exercise | 1,000 | $3.90 | $3,900 |
| 2020-07-24 | Leonard John E. | Officer | +Exercise | 1,258 | $7.10 | $8,932 |
| 2020-07-14 | Leonard John E. | Officer | +Exercise | 1,000 | $3.90 | $3,900 |
| 2020-07-10 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,126,760 | $3.55 | $4M |
| 2020-03-30 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 5,000 | $4.06 | $20,300 |
| 2020-03-27 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 4,000 | $4.18 | $16,720 |
| 2020-03-26 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $4.44 | $4,440 |
| 2020-03-24 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 2,000 | $4.40 | $8,800 |
| 2020-03-20 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 2,000 | $4.31 | $8,620 |
| 2020-03-19 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 4,000 | $4.15 | $16,600 |
| 2020-03-17 | FCMI Parent Co. | TenPercentOwner | +Buy | 3,440 | $4.00 | $13,760 |
| 2020-03-16 | FCMI Parent Co. | TenPercentOwner | +Buy | 600 | $4.15 | $2,490 |
| 2020-03-13 | FCMI Parent Co. | TenPercentOwner | +Buy | 3,000 | $4.28 | $12,840 |
| 2020-03-10 | FCMI Parent Co. | TenPercentOwner | +Buy | 4,000 | $4.20 | $16,800 |
| 2020-03-09 | FCMI Parent Co. | TenPercentOwner | +Buy | 231 | $4.22 | $975 |
| 2020-01-23 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Buy | 98,231 | $5.09 | $499,996 |
| 2020-01-23 | Frieberg Jacob B. | Director | +Buy | 39,292 | $5.09 | $199,996 |
| 2020-01-23 | FCMI Parent Co. | TenPercentOwner | +Buy | 982,318 | $5.09 | $5M |
| 2019-07-30 | FCMI Parent Co. | TenPercentOwner | +Buy | 1,838,235 | $4.08 | $7M |
| 2019-07-30 | Zauderer Maurice | Director,Officer,TenPercentOwner | +Buy | 183,824 | $4.08 | $750,002 |
| 2019-07-26 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $3.99 | $3,990 |
| 2019-07-25 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 52 | $3.99 | $207 |
| 2019-03-15 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $3.96 | $3,960 |
| 2019-03-15 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $3.96 | $3,960 |
| 2019-03-15 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Buy | 1,000 | $3.96 | $3,960 |
| 2019-03-14 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $4.00 | $4,000 |
| 2019-03-14 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,000 | $4.00 | $4,000 |
| 2019-03-14 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Buy | 1,000 | $4.00 | $4,000 |
| 2019-02-07 | Royer Scott E. | Officer | +Buy | 1,725 | $5.05 | $8,711 |
| 2019-02-06 | Royer Scott E. | Officer | +Buy | 275 | $4.57 | $1,257 |
| 2019-01-15 | Royer Scott E. | Officer | +Buy | 1,688 | $4.31 | $7,275 |
| 2018-12-27 | Royer Scott E. | Officer | +Buy | 311 | $4.15 | $1,291 |
| 2018-08-13 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Conversion | 815,698 | — | — |
| 2018-08-13 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Conversion | 93,547 | — | — |
| 2018-08-13 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Conversion | 95,448 | — | — |
| 2018-08-13 | Vaccinex (Rochester), L.L.C. | TenPercentOwner | +Conversion | 95,448 | — | — |
| 2018-08-13 | Shumacher Michael | TenPercentOwner | +Conversion | 549,444 | — | — |
| 2018-08-13 | Shumacher Michael | TenPercentOwner | +Conversion | 1,346,139 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 37,633 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 500,570 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 599,957 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 204,145 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 480,822 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 683,681 | — | — |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 1,875,000 | $12.00 | $23M |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Buy | 583,333 | $12.00 | $7M |
| 2018-08-13 | FRIEDBERG ALBERT | Director,TenPercentOwner | +Conversion | 439,555 | — | — |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
