TOVXNYSEPharmaceutical PreparationsFiscal year ends December 31
Theriva Biologics, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 11, 2026
$0.20−0.00 (-1.54%)
Close on Oct 19, 2026
- Market cap
- $9.39M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
4.3%
2M of 46M shares
Institutional holders
26
6 new, 2 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Ryan M. Lane | 953,185 | 9.99% | 13G (passive) | Jun 30, 2025 |
| Jeffrey Matthew Gryga Irrevocable Trust | 739,211 | 7.70% | 13G (passive) | Oct 24, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of TOVX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 486,179 | 1.06% | $121.55K | +293,775 | 0.00% |
| Jane Street Group, LLC | 331,922 | 0.72% | $83.05K | +154,888 | 0.00% |
| Geode Capital Management, LLC | 294,021 | 0.64% | $73.56K | −156,242 | 0.00% |
| Vanguard Fiduciary Trust Co | 241,780 | 0.53% | $60.45K | – | 0.00% |
| Ikarian Capital, LLC | 112,076 | 0.24% | $28.04K | – | 0.00% |
| Virtu Financial LLC | 87,138 | 0.19% | $22 | −166,080 | 0.00% |
| Northern Trust Corp | 82,700 | 0.18% | $20.69K | New | 0.00% |
| Renaissance Technologies LLC | 63,710 | 0.14% | $15.94K | New | 0.00% |
| UBS Group AG | 61,053 | 0.13% | $15.26K | −164,571 | 0.00% |
| XTX Topco Ltd | 53,868 | 0.12% | $13.48K | −40,752 | 0.00% |
| Ground Swell Capital, LLC | 35,292 | 0.08% | $8.83K | New | 0.01% |
| Boothbay Fund Management, LLC | 27,646 | 0.06% | $6.92K | – | 0.00% |
| Susquehanna International Group, Llp | 24,064 | 0.05% | $6.02K | New | 0.00% |
| Morgan Stanley | 20,299 | 0.04% | $5.08K | −3,303 | 0.00% |
| Two Sigma Securities, LLC | 19,748 | 0.04% | $4.94K | −85,493 | 0.00% |
| Two Sigma Investments, LP | 15,456 | 0.03% | $3.87K | +15 | 0.00% |
| Schwarz Dygos Wheeler Investment Advisors LLC | 15,000 | 0.03% | $3.75K | – | 0.00% |
| BlackRock, Inc. | 7,504 | 0.02% | $1.88K | – | 0.00% |
| Osaic Holdings, Inc. | 441 | 0.00% | $110 | +433 | 0.00% |
| SBI Securities Co., Ltd. | 358 | 0.00% | $90 | +227 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 26 | 2M | 4.3% | 6 / 5 | 6 / 2 | 1M | 1M |
| Q1 2026 | 22 | 2M | 4.3% | 5 / 5 | 5 / 3 | 1M | 0M |
| Q4 2025 | 21 | 1M | 2.8% | 7 / 7 | 4 / 6 | 1M | 0M |
| Q3 2025 | 20 | 0M | 1.0% | 8 / 5 | 2 / 4 | 0M | 0M |
| Q2 2025 | 17 | 0M | 0.6% | 7 / 2 | 3 / 0 | 0M | 0M |
| Q1 2025 | 10 | 0M | 0.4% | 3 / 1 | 2 / 3 | 0M | 0M |
| Q4 2024 | 10 | 0M | 0.1% | 2 / 2 | 1 / 9 | 0M | 0M |
| Q3 2024 | 18 | 0M | 1.1% | 18 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of TOVX | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Extended Market Index Fund | 486,179 | 1.06% | $121.64K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 284,723 | 0.62% | $80.80K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 26,070 | 0.06% | $7.40K | 0.00% | May 31, 2026 |
| Blackstone Alternative Multi-Strategy Fund | 31 | 0.00% | $8 | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Steven A. Shallcross | CEO and CFO, Director | 250,000 | 0.54% | Jan 6, 2026 |
| Jeffrey J. Kraws | Director | 228,773 | 0.50% | Jan 6, 2026 |
| Jeffrey Alan Wolf | Director | 10,842 | 0.02% | Jan 6, 2026 |
| John J. Monahan | Director | – | – | Jan 6, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Steven A. Shallcross CEO and CFO, Director | Jun 7, 2023 | Buy | +14,000 | $0.69 | $9.66K | 250,000 |
| Steven A. Shallcross CEO and CFO, Director | Jun 6, 2023 | Buy | +26,000 | $0.63 | $16.38K | 236,000 |
| Steven A. Shallcross CEO and CFO, Director | Feb 10, 2023 | Buy | +25,000 | $1.04 | $26.00K | 210,000 |
| Steven A. Shallcross CEO and CFO, Director | Feb 2, 2023 | Buy | +25,000 | $0.94 | $23.50K | 185,000 |
| Steven A. Shallcross CEO and CFO, Director | Jan 25, 2023 | Buy | +25,000 | $0.87 | $21.75K | 160,000 |
| Steven A. Shallcross CEO and CFO, Director | Jan 20, 2023 | Buy | +25,000 | $0.75 | $18.75K | 135,000 |
| Steven A. Shallcross CEO and CFO, Director | Dec 29, 2022 | Buy | +100,000 | $0.44 | $44.00K | 110,000 |
| Steven A. Shallcross CEO and CFO, Director | May 10, 2021 | Buy | +50,000 | $0.49 | $24.50K | 100,000 |
| Steven A. Shallcross CEO and CFO, Director | Aug 23, 2019 | Buy | +50,000 | $0.42 | $21.00K | 50,000 |
| Corp Intrexon 10% owner | Apr 3, 2019 | Sale | −69,161 | $0.65 | $44.95K | 165,332 |
| Corp Intrexon 10% owner | Apr 3, 2019 | Sale | −26,080 | $0.65 | $16.95K | 62,342 |
| Corp Intrexon 10% owner | Apr 2, 2019 | Sale | −9,909 | $0.66 | $6.54K | 234,493 |
| Corp Intrexon 10% owner | Apr 2, 2019 | Sale | −3,737 | $0.66 | $2.47K | 88,422 |
| Corp Intrexon 10% owner | Apr 1, 2019 | Sale | −30,265 | $0.67 | $20.28K | 244,402 |
| Corp Intrexon 10% owner | Apr 1, 2019 | Sale | −11,413 | $0.67 | $7.65K | 92,159 |
| Jeffrey J. Kraws Director | Mar 14, 2017 | Option exercise | +228,773 | $0.09 | $20.59K | 228,773 |
| Scott Tarriff Director | Nov 18, 2016 | Award | +300,000 | – | – | 300,000 |
| Randal J. Kirk 10% owner | Sep 2, 2015 | Buy | +937,500 | $3.20 | $3.00M | 9,613,268 |
| Jeffrey Alan Wolf Director | Apr 1, 2015 | Option exercise | +10,842 | $0.09 | $976 | 10,842 |
| Charles Evan Ballantyne Chief Financial Officer | May 22, 2014 | Buy | +10,000 | $1.35 | $13.50K | 10,000 |
| Steve H. Kanzer 10% owner | Apr 30, 2014 | Sale | −5,003,025 | $1.43 | $7.15M | 2,195,489 |
| Steve H. Kanzer 10% owner | Apr 29, 2014 | Sale | −87,935 | $2.98 | $262.05K | 6,823,268 |
| Steve H. Kanzer 10% owner | Apr 28, 2014 | Sale | −175,177 | $2.86 | $501.01K | 6,911,203 |
| Corp Intrexon 10% owner | Dec 17, 2013 | Buy | +500,000 | $1.00 | $500.00K | 3,625,000 |
| Corp Intrexon 10% owner | Dec 17, 2013 | Buy | +2,000,000 | $1.00 | $2.00M | 8,675,768 |
| Jeffrey Scott Riley CEO and President, Director | Jan 7, 2013 | Buy | +5 | $1.71 | $9 | 7,505 |
| Jeffrey Scott Riley CEO and President, Director | Jan 7, 2013 | Buy | +2,895 | $0.17 | $492 | 10,400 |
| Jeffrey Scott Riley CEO and President, Director | Jan 3, 2013 | Buy | +2,000 | $1.71 | $3.42K | 7,500 |
| Jeffrey Scott Riley CEO and President, Director | Jan 3, 2013 | Buy | +2,800 | $1.75 | $4.90K | 5,500 |
| Jeffrey Scott Riley CEO and President, Director | Jan 2, 2013 | Buy | +2,700 | $1.78 | $4.81K | 2,700 |
| Randal J. Kirk 10% owner | Oct 29, 2012 | Buy | +3,125,000 | $1.60 | $5.00M | 3,125,000 |
| James S. Kuo Chairman, CEO & President, Director | Aug 30, 2011 | Buy | +4,500 | $0.69 | $3.10K | 4,500 |
| Lyman Max Lyon Jr CEO & President, Director | Dec 9, 2009 | Returned to company | −25,000 | $0.45 | $11.25K | 0 |
| Lyman Max Lyon Jr CEO & President, Director | Dec 8, 2009 | Returned to company | −20,000 | $0.48 | $9.60K | 25,000 |
| Lyman Max Lyon Jr CEO & President, Director | Dec 7, 2009 | Award | +45,000 | $0.38 | $17.10K | 45,000 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +500 | $0.90 | $450 | 348,146 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +2,400 | $0.89 | $2.14K | 347,646 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +6,200 | $0.86 | $5.33K | 345,246 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +1,000 | $0.85 | $850 | 339,046 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +2,300 | $0.83 | $1.91K | 338,046 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +500 | $0.81 | $405 | 335,746 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +9,500 | $0.80 | $7.60K | 335,246 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +500 | $0.79 | $395 | 325,746 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +3,100 | $0.98 | $3.04K | 375,246 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +1,000 | $0.96 | $960 | 372,146 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +1,866 | $0.95 | $1.77K | 371,146 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +2,650 | $0.94 | $2.49K | 369,280 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +8,484 | $0.93 | $7.89K | 366,630 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +9,900 | $0.92 | $9.11K | 358,146 |
| Steve H. Kanzer Chief Executive Officer, Director | Apr 11, 2008 | Buy | +100 | $0.91 | $91 | 348,246 |
| A. Joseph Rudick Director | Jan 29, 2008 | Option exercise | +27,106 | $0.09 | $2.44K | 57,267 |
| Daniel J. Dorman Director | Nov 9, 2007 | Buy | +247,542 | $2.22 | $549.54K | 742,626 |
| Daniel J. Dorman Director | Nov 9, 2007 | Buy | +6,189 | $2.22 | $13.74K | 18,566 |
| Capital Investments Ltd. Ridgeback 10% owner | Nov 9, 2007 | Option exercise | +618,855 | $0.74 | $457.95K | 1,856,565 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 25, 2007 | Buy | +5,000 | $7.42 | $37.10K | 315,946 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 25, 2007 | Buy | +200 | $7.16 | $1.43K | 316,146 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 25, 2007 | Buy | +5,000 | $7.09 | $35.45K | 325,246 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 25, 2007 | Buy | +2,000 | $7.14 | $14.28K | 320,246 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 25, 2007 | Buy | +2,100 | $7.15 | $15.02K | 318,246 |
| Steve H. Kanzer CEO, Director, 10% owner | Jul 24, 2007 | Buy | +2,400 | $7.11 | $17.06K | 309,346 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.