ANTIRADICAL THERAPEUTICS LLC

Sioux Falls, SD · Biotech · Private

Therapeutic resuscitation fluid that protects brain tissue from secondary injury in traumatic brain injury with hemorrhagic shock

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Updated Oct 23, 2026

Sector: Biotech
Headquarters: Sioux Falls, SD
Total capital: $2.1M

Federal grants: $1.0M; 1 award · 2018; Rank in peer group#304 of 326
Private capital raised: None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts: $1.1M; 2 awards · Defense; Rank in Biotech#182 of 4373
Granted patents: 0; 2 pending

Capital timeline

Latest events

Dec 2018Federal grantDefense · Phase II · SanFlow: A Therapeutic Agent for Use in the Field for Traumatic Brain Injury$1.0M
Dec 2018Federal contractDefense · SBIR Phase II Research Title Android Biometric Authentication And Casualty Identification Proposal Number H2-0406 Topic Number DHA17-01$943K
Sep 2017Federal contractDefense · Igf::ct::igf SBIR Phase I Tasking Sanflow: A Therapeutic Agent For Use In The Field For Traumatic Brain Injury$150K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 326 peers

Line = median

Biotech · Molecule

Federal grantsBelow median

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

USPTO · 0 granted of 2

May 25, 2017PendingComposition and Methods of Use of Nano Anti-Radical Therapeutics To Inhibit CancerUSPTOApplication 15360264
PendingCompositions And Methods Of Use Of Nano Anti-radical Therapeutics To Inhibit CancerUSPTOApplication PCTUS2016063594

SYNZYME TECHNOLOGIES LLCShares a founder: CARLETON HSIA
EXTEND BIOSCIENCES INCSimilar federal contract value in Biotech · $1.1M in contracts
ORBIS BIOSCIENCES, INC.Similar federal contract value in Biotech · $1.1M in contracts
PARABON COMPUTATION, INC.Similar federal contract value in Biotech · $1.1M in contracts
Zen-Bio, Inc.Similar federal contract value in Biotech · $1.1M in contracts
SunFire Biotechnologies LLCSimilar federal contract value in Biotech · $1.1M in contracts

Regulatory activity · Biotech

Sector-level, not company-level

07 Jul 2026New Animal Drugs; Approval of New Animal Drug Applications; Withdrawal of Approval of New Animal Drug Application; Change of SponsorFood and Drug Administration
30 Jun 2026Medical Devices; General and Plastic Surgery Devices; Classification of the Skin Patch for Treatment of HyperhidrosisFood and Drug Administration
30 Jun 2026Medical Devices; Anesthesiology Devices; Classification of the Monitor for Opioid Induced Impairment of OxygenationFood and Drug Administration
29 Jun 2026Medical Devices; Orthopedic Devices; Classification of the Medial Knee Implanted Shock AbsorberFood and Drug Administration
26 Jun 2026Medical Devices; Neurological Devices; Classification of the External Lower Extremity Nerve Stimulator for Restless Legs SyndromeFood and Drug Administration
26 Jun 2026Medical Devices; General Hospital and Personal Use Devices; Classification of the Infant Supine Sleep SystemFood and Drug Administration

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through Oct 23, 2026. SBIR and STTR awards through Oct 21, 2026.