List of insiders holdings for Theriva Biologics Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Bisgaier Charles PhD President | 2007-07-17 13:21:00 | 773,356 2,203,352 | 2,976,708 | Form 4 |
| 2 | KANZER STEVE H Prior Director 10% Owner | 2014-05-02 16:32:40 | 2,499,880 0 | 2,499,880 | Form 13D |
| 3 | Ridgeback Capital Investments Ltd. Ridgeback Capital Management LLC Holman Wayne George 10% Owner | 2007-11-13 09:49:18 | 1,856,565 0 | 1,856,565 | Form 4 |
| 4 | Riley Jeffrey Scott Chief Executive Officer | 2016-12-02 17:06:16 | 1,129,000 0 | 1,129,000 | Form 4 |
| 5 | DORMAN DANIEL J Director | 2007-11-13 12:56:57 | 0 742,626 | 742,626 | Form 4 |
| 6 | Stergis Nicholas Chief Executive Officer | 2010-02-12 17:26:27 | 459,817 0 | 459,817 | Form 13G |
| 7 | Sliman Joseph A. Chief Medical Officer | 2017-12-21 17:20:58 | 410,000 0 | 410,000 | Form 4 |
| 8 | MANION MICHAEL F President 10% Owner | 2006-11-02 16:31:39 | 340,000 0 | 340,000 | Form 4 |
| 9 | Ballantyne Charles Evan Chief Financial Officer | 2015-01-12 06:11:44 | 200,000 0 | 200,000 | Form 4 |
| 10 | SHALLCROSS STEVEN A CEO and CFO | 2025-05-01 16:01:54 | 190,000 0 | 190,000 | Form 4 |
| 11 | KIRK RANDAL J INTREXON CORP 10% Owner | 2019-04-03 17:13:53 | 0 165,332 | 165,332 | Form 4 |
| 12 | Newsome David A. Chief Scientific Officer | 2007-11-06 17:16:44 | 150,000 0 | 150,000 | Form 4 |
| 13 | Tufaro Francis Chief Operating Officer | 2022-12-16 18:16:12 | 100,000 0 | 100,000 | Form 4 |
| 14 | RUDICK A JOSEPH Director | 2008-02-04 15:50:40 | 57,267 0 | 57,267 | Form 4 |
| 15 | STACKS NELSON K. Director | 2012-02-06 21:41:58 | 25,000 0 | 25,000 | Form 3 |
| 16 | Kraws Jeffrey J Director | 2025-05-01 16:01:06 | 25,000 0 | 25,000 | Form 4 |
| 17 | MONAHAN JOHN J Director | 2025-05-01 16:01:30 | 25,000 0 | 25,000 | Form 4 |
| 18 | Wolf Jeffrey Alan Director | 2025-05-01 16:02:16 | 25,000 0 | 25,000 | Form 4 |
| 19 | KUO JAMES S Chairman, CEO & President | 2011-08-31 17:27:02 | 4,500 0 | 4,500 | Form 4 |
| 20 | Lyon Lyman Max Jr CEO & President | 2009-12-10 17:12:04 | 0 0 | 0 | Form 4 |
| 21 | Tarriff Scott Former Director Director | 2020-11-12 15:39:50 | 0 0 | 0 | Form 4 |