Latest Period
Q2 2026
CUSIP: 87164U508
Latest Period
Q2 2026
Institutions Reporting
24
Shares (Excl. Options)
1,980,374
Price
$0.25
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Latest holder context comes from 24 institutions filings for Q2 2026.
Security key
87164U508
Latest holder period
Q2 2026
13F holders
24
13D/G owners
3
CIK / CUSIP context first
Broader feeds
Open recent reporting periods for CUSIP 87164U508:
13D/G owners
Large-stake holder rows connected to Schedule 13D/G evidence.
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Jeffrey Matthew Gryga Irrevocable Trust | 7.7% | $300,046 | 739,211 | Jeffrey Matthew Gryga Irrevocable Trust | 24 Oct 2025 | |||
| Empery Asset Management, LP | 5% | -50% | $201,636 | -$179,638 | 504,091 | -47% | Empery Asset Management, LP | 30 Sep 2025 |
| CVI Investments, Inc. | 4.9% | $206,052 | 146,136 | CVI Investments, Inc. | 31 Dec 2024 |
As of 30 Jun 2026, 24 institutional investors reported holding 1,980,374 shares of Theriva Biologics, Inc. - Common stock (TOVX). This represents 21% of the company’s total 9,600,143 outstanding shares.
13F concentration
Largest 13F positions for this security by reported shares and value.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | 486,179 | +153% | 0% | $121,545 |
| JANE STREET GROUP, LLC | 3.5% | 331,922 | +87% | 0% | $83,047 |
| GEODE CAPITAL MANAGEMENT, LLC | 3.1% | 294,021 | -35% | 0% | $73,563 |
| VANGUARD FIDUCIARY TRUST CO | 2.5% | 241,780 | 0% | 0% | $60,445 |
| Ikarian Capital, LLC | 1.2% | 112,076 | 0% | 0% | $28,041 |
| Virtu Financial LLC | 0.91% | 87,138 | -66% | 0% | $22,000 |
| NORTHERN TRUST CORP | 0.86% | 82,700 | 0% | $20,692 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.66% | 63,710 | 0% | $15,940 | |
| UBS Group AG | 0.64% | 61,053 | -73% | 0% | $15,264 |
| XTX Topco Ltd | 0.56% | 53,868 | -43% | 0% | $13,478 |
| Ground Swell Capital, LLC | 0.37% | 35,292 | 0.01% | $8,830 | |
| BOOTHBAY FUND MANAGEMENT, LLC | 0.29% | 27,646 | 0% | 0% | $6,917 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.25% | 24,064 | 0% | $6,021 | |
| MORGAN STANLEY | 0.21% | 20,299 | -14% | 0% | $5,079 |
| TWO SIGMA SECURITIES, LLC | 0.21% | 19,748 | -81% | 0% | $4,941 |
| TWO SIGMA INVESTMENTS, LP | 0.16% | 15,456 | +0.1% | 0% | $3,867 |
| SCHWARZ DYGOS WHEELER INVESTMENT ADVISORS LLC | 0.16% | 15,000 | 0% | 0% | $3,753 |
| BlackRock, Inc. | 0.08% | 7,504 | 0% | 0% | $1,878 |
| OSAIC HOLDINGS, INC. | 0% | 441 | 0% | 0% | $110 |
| SBI Securities Co., Ltd. | 0% | 358 | +173% | 0% | $90 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 0% | 100 | 0% | $25 | |
| IFP Advisors, Inc | 0% | 11 | 0% | 0% | $3 |
| NFSG Corp | 0% | 5 | 0% | 0% | $1 |
| BARCLAYS PLC | 0% | 3 | 0% | $1 | |
| StoneX Group Inc. | 0% | 0 | -100% | $0 |
Quarter history
Holder count, reported shares/value, and median price by quarter.
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 1,980,374 | $495,531 | +$4,553 | $0.25 | 24 |
| 2026 Q1 | 1,965,271 | $385,351 | +$95,191 | $0.20 | 19 |
| 2025 Q4 | 1,295,504 | $272,379 | +$158,821 | $0.21 | 20 |
| 2025 Q3 | 437,052 | $177,030 | +$57,424 | $0.41 | 18 |
| 2025 Q2 | 291,012 | $126,275 | +$38,331 | $0.43 | 15 |
| 2025 Q1 | 190,681 | $209,751 | +$165,878 | $1.10 | 10 |
| 2024 Q4 | 34,470 | $60,323 | -$627,703 | $1.75 | 9 |
| 2024 Q3 | 491,424 | $677,871 | +$471,525 | $1.38 | 16 |