Security Snapshot

Theriva Biologics, Inc. - Common stock (TOVX) Institutional Ownership

CUSIP: 87164U508

13F Institutional Holders and Ownership History from Q3 2024 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

11

Shares (Excl. Options)

1.22MFull value: 1,223,511 · shares · 30 Sep 2026

Price

$0.22

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+66,856
Value change
+$15,173
Number of holders
11
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
9,600,143
SEC-reported price per share
$0.22
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • TOVX - Theriva Biologics, Inc. - Common stock is tracked under CUSIP 87164U508.
  • 11 institutions reported positions in Q3 2026.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 24 to 11 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $495.53KFull value: $495,531 · USD · 30 Jun 2026
    to
    $275.42KFull value: $275,419 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 11 institutions filings for Q3 2026.

Open SEC evidence

Security key

87164U508

13F reference period

Q3 2026

13F holders

11

13D/G owners

3

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
3
Security
TOVX
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 Sep 2026, 11 institutional investors reported holding
1.22MFull value: 1,223,511 · shares · 30 Sep 2026
shares of Theriva Biologics, Inc. - Common stock (TOVX). This represents 13% of the company’s total
9.6MFull value: 9,600,143 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 11 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
13%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD CAPITAL MANAGEMENT LLC 5.1% 486,179 0% 0% $109,390
GEODE CAPITAL MANAGEMENT, LLC 3.1% 299,138 +1.7% 0% $67,305
VANGUARD FIDUCIARY TRUST CO 2.5% 241,780 0% 0% $54,401
RENAISSANCE TECHNOLOGIES LLC 1.1% 109,500 +72% 0% $24,638
StoneX Group Inc. 0.33% 32,106 0% $7,354
MORGAN STANLEY 0.21% 20,299 0% 0% $4,567
Ground Swell Capital, LLC 0.19% 18,410 -48% 0.01% $4,142
SCHWARZ DYGOS WHEELER INVESTMENT ADVISORS LLC 0.16% 15,000 0% 0% $3,375
SBI Securities Co., Ltd. 0.01% 1,083 +203% 0% $244
IFP Advisors, Inc 0% 11 0% 0% $2
NFSG Corp 0% 5 0% 0% $1

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
9
Headline period
Q3 2026
Rows shown
1-9 of 9
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 1,223,511 $275,419 +$15,173 $0.22 11
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
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