Theriva Biologics, Inc.
Theriva Biologics, Inc. (AMEX: TOVX) is trading at $0.21, about ₹20 at today's USD/INR rate, as of 29 Sep 2026, 4:00 PM ET, down 3.00% today. Indian residents can buy Theriva Biologics from India on Paasa under the RBI's Liberalised Remittance Scheme.
Quote
Today's low
$0.21
Today's high
$0.22
52 week low
$0.16
52 week high
$0.86
TOVX opened at $0.22, closed previously at $0.22, and has traded between $0.16 and $0.86 over the past 52 weeks.
About
Theriva Biologics Inc. is a clinical-stage biotechnology firm dedicated to developing novel treatments for conditions with significant unmet medical needs. The company's pipeline features several promising candidates, including SYN-004, which is engineered to break down commonly used intravenous beta-lactam antibiotics in the gastrointestinal tract. This degradation aims to avert microbiome damage, Clostridioides difficile infection (CDI), the overgrowth of harmful organisms, the rise of antimicrobial resistance (AMR), and acute graft-versus-host disease (aGVHD) in patients undergoing allogeneic hematopoietic cell transplants. Another key investigational therapy is SYN-020, an orally administered recombinant formulation of intestinal alkaline phosphatase, designed to address both localized gastrointestinal and systemic diseases. Additionally, Theriva Biologics is advancing VCN-01 for the treatment of various cancers, specifically pancreatic cancer, head and neck squamous cell carcinoma, colorectal cancer, and retinoblastoma. Its broader clinical-stage portfolio includes SYN-006, intended to prevent aGVHD and infections caused by carbapenem-resistant enterococci; SYN-007, aimed at preventing antibiotic-associated diarrhea linked to oral beta-lactam antibiotics; SYN-005, for both the prevention and treatment of pertussis; and VCN-11, another cancer-focused therapy. The company collaborates with institutions such as Intrexon Corporation, The University of Texas at Austin, and Cedars-Sinai Medical Center. Furthermore, a clinical trial agreement with Washington University School of Medicine in St. Louis is in place to conduct a Phase 1b/2a clinical trial for SYN-004. Formerly known as Synthetic Biologics, Inc., the company rebranded as Theriva Biologics Inc. in October 2022 and is headquartered in Rockville, Maryland.
Key statistics
Avg. volume
4.69M
Market cap
$9.64M
P/E Ratio
-0.31
Price-to-sales ratio
32.12
Enterprise value
-$7.87M
Free cash flow yield
-653.93%
Debt-to-equity ratio
0.29
Return on equity
-164.14%
ROIC
-52.10%
Beta
1.15
Dividend yield
0.00%
Last dividend
$0.00
Financial overview
Revenue
$0.00
Earnings per share
-$2.08
Free cash flow
-$16.70M
Net profit margin
-3872.67%
Gross margin
92.00%
EBITDA
-$23.63M
Revenue growth
0.00%
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This is not an investment recommendation
How to buy Theriva Biologics from India
Indian residents can buy Theriva Biologics shares through Paasa in four steps. Funds leave India under the RBI's Liberalised Remittance Scheme and the shares are held in your own name with Interactive Brokers.
Open a Paasa account
Complete digital KYC with your PAN, Aadhaar and address proof. Your brokerage account is opened in your own name with Interactive Brokers.
Add funds under LRS
Transfer INR from your Indian bank account. Your bank reports the remittance under the RBI's Liberalised Remittance Scheme and converts it to US dollars.
Search for Theriva Biologics and place an order
Find Theriva Biologics by name or by its ticker, TOVX, and choose an order type. You can buy by amount or by quantity — fractional shares mean there is no minimum trade size. Theriva Biologics trades 7:00 pm – 1:30 am IST; orders can only execute during that window.
Track holdings and download tax reports
Follow your Theriva Biologics position in USD and INR. Theriva Biologics pays no dividend today, so your filing is the capital-gains statement plus the Schedule FA holding line.
Read the full guide: how to invest in Theriva Biologics from India
Trading and taxes when buying Theriva Biologics from India
Trading and limits
- Trading hours
- 9:30 am – 4:00 pm ET
- LRS limit
- $250,000Per financial year, under the RBI's Liberalised Remittance Scheme.
Tax for Indian residents
- TCS on remittance
- 20%Collected by your bank on LRS remittances above ₹10 lakh in a financial year. The TCS is adjustable against your income-tax liability.Adjusting TCS against your tax
- Capital gains in India
- 12.5% or slab rateGains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate.Capital gains explained
- Dividends
- NoneTheriva Biologics does not currently pay a dividend. If it starts, dividends are taxed at your slab rate in India.Dividend tax explained
- US estate tax
- May applyUS-situs assets such as US-listed shares can be exposed to US estate tax for non-US persons.US estate tax calculator
Custody. Shares are held in your own name at Interactive Brokers LLC and are SIPC-insured up to $500,000 in total, including $250,000 for cash.
FAQs
Can Indian residents buy Theriva Biologics stock?
Yes. Theriva Biologics (TOVX) has been listed on NYSE American since 2006, in the Biotechnology industry, and Indian residents can buy it through Paasa. You fund the account from your Indian bank under the RBI's Liberalised Remittance Scheme and the money is converted to US dollars. Shares are held in your own name at Interactive Brokers LLC and are SIPC-insured up to $500,000 in total, including $250,000 for cash.
How much does one Theriva Biologics share cost in rupees?
One Theriva Biologics share is $0.21 — about ₹20 at a USD/INR rate of 96.06 on 29 Sep 2026. Both the Theriva Biologics price and the rupee rate move during the day, so the rupee cost changes with them.
What are the LRS and TCS rules for buying Theriva Biologics from India?
Remit up to $250,000 per financial year under the RBI's Liberalised Remittance Scheme (LRS). Banks collect 20% tax at source on LRS remittances above ₹10 lakh in a financial year; the TCS is adjustable against your income-tax liability. FX and the LRS declaration are handled by your bank when you fund your account.
Can I buy whole shares of Theriva Biologics?
Yes. One Theriva Biologics share is $0.21, and you can buy as many whole shares as you like. You can also buy by amount rather than by quantity: there is no minimum trade size, and Paasa supports fractional investing in Theriva Biologics.
How are gains on Theriva Biologics shares taxed in India?
The US does not levy capital gains tax on shares for Indian residents, so the tax is an India-side one. Gains on shares held for more than 24 months are long-term and taxed at 12.5%. Gains on shares held for 24 months or less are short-term and taxed at your income-tax slab rate. The gain is computed in rupees using the USD/INR rate on the purchase and the sale date, so the rupee move counts alongside the Theriva Biologics price. Paasa issues a capital-gains statement for your return.
Does Theriva Biologics pay a dividend?
No. Theriva Biologics does not currently pay a dividend, so holding it produces no dividend income to declare in India. If it starts paying one, the Indian treatment is the usual one — dividends are taxed at your slab rate in India — and Paasa's dividend report would show the gross amount and any tax withheld.
When can I trade Theriva Biologics from India?
NYSE American trades 7:00 pm – 1:30 am IST in Indian time, so the close lands after midnight. The window shifts to 8:00 pm – 2:30 am IST when the US is on standard time. Orders can only execute during that window.
Is there estate or inheritance tax on Theriva Biologics shares held from India?
US-situs assets such as US-listed shares can be exposed to US estate tax for non-US persons. It applies to your overall holdings in that jurisdiction rather than to any one position. Paasa's US estate tax calculator shows the exposure for a given portfolio value.
Do I have to declare Theriva Biologics shares in my Indian tax return?
Yes. Foreign shares held on 31 March must be reported in Schedule FA of your Indian income-tax return. Paasa gives you a Schedule FA-ready statement listing your Theriva Biologics holding, its cost and its closing value.
How do I sell Theriva Biologics and bring the money back to India?
You sell during market hours (7:00 pm – 1:30 am IST) and the proceeds settle in USD in your Paasa account. From there you can hold the balance, reinvest, or repatriate. Funds can be withdrawn in any currency to any bank account in your own name. Whether the sale is short- or long-term is decided by the 24-month holding period.