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Phio Pharmaceuticals Corp.

Biopharmaceutical Marlborough, Massachusetts ~50 employees
Founded
--
Employees (Est.)
~50
5 leaders known
Total Funding
$45.4M
Funding Rounds
15
Last Funding
2025-11-03

About Phio Pharmaceuticals Corp.

Phio Pharmaceuticals is a clinical-stage biopharmaceutical company focused on advancing siRNA therapies derived from RNAi, co-founded by Nobel Prize scientist Craig Mello. Their mission is to create innovative pathways toward a cancer-free future through immuno-oncology solutions.

Products & Services

INTASYL siRNA Technology:A proprietary gene silencing technology that enhances the effectiveness of immune cells in killing cancer cells, with a focus on immuno-oncology.
Pipeline Initiatives:Focused on treatments for cutaneous Squamous Cell Carcinoma (cSCC) and melanoma.

Specialties

siRNA Therapies RNAi-based Treatments Immuno-oncology Cutaneous Squamous Cell Carcinoma (cSCC) Melanoma

Funding History

Debug: View Raw Funding Data
# Type Amount Fields Date Fields Investors
1 RT: Warrant Exercise
T: -
FT: Warrant Exercise
A: 13400000
MR: -
FA: approximately $13.4 million
FAN: 13400000
D: 2025-11-03
FD: 2025-11-03
-
2 RT: Warrant Exercise
T: -
FT: Warrant Exercise
A: 2500000
MR: -
FA: approximately $2.5 million
FAN: 2500000
D: 2025-07-25
FD: 2025-07-25
-
3 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 1830000
MR: -
FA: 1.83 million
FAN: 1830000
D: 2025-01-21
FD: 2025-01-21
1 investors
4 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 1830000
MR: -
FA: $1.83 million
FAN: 1830000
D: 2025-01-16
FD: 2025-01-16
1 investors
5 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 2500000
MR: -
FA: $2.5 million
FAN: 2500000
D: 2025-01-15
FD: 2025-01-15
-
6 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 3190000
MR: -
FA: $3.19 million
FAN: 3190000
D: 2025-01-14
FD: 2025-01-14
1 investors
7 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 480000
MR: -
FA: $0.48 million
FAN: 480000
D: 2024-12-23
FD: 2024-12-23
-
8 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 1150000
MR: -
FA: 1.15 million
FAN: 1150000
D: 2024-12-19
FD: 2024-12-19
1 investors
9 RT: Warrant Exercise
T: -
FT: Warrant Exercise
A: 3100000
MR: -
FA: 3.1 million
FAN: 3100000
D: 2024-07-12
FD: 2024-07-12
1 investors
10 RT: Equity
T: -
FT: Equity
A: 621000
MR: -
FA: up to $621,000
FAN: 621000
D: 2024-05-17
FD: 2024-05-17
1 investors
11 RT: Warrant Exercise
T: -
FT: Warrant Exercise
A: 2800000
MR: -
FA: $2.8 million
FAN: 2800000
D: 2023-12-07
FD: 2023-12-07
1 investors
12 RT: Registered Direct Offering and Private Placement
T: -
FT: Registered Direct Offering and Private Placement
A: 4000000
MR: -
FA: 4.0 million
FAN: 4000000
D: 2023-06-02
FD: 2023-06-02
1 investors
13 RT: Registered Direct Offering and Private Placement
T: -
FT: Registered Direct Offering and Private Placement
A: 4000000
MR: -
FA: approximately $4 million
FAN: 4000000
D: 2023-05-31
FD: 2023-05-31
1 investors
14 RT: Registered Direct Offering
T: -
FT: Registered Direct Offering
A: 2000000
MR: -
FA: 2.0 million
FAN: 2000000
D: 2023-04-20
FD: 2023-04-20
-
15 RT: Registered Direct Offering and Private Placement
T: -
FT: Registered Direct Offering and Private Placement
A: 2000000
MR: -
FA: $2 million
FAN: 2000000
D: 2023-04-18
FD: 2023-04-18
1 investors
Warrant Exercise Latest
2025-11-03
$13.4M
Warrant Exercise 2025-07-25
$2.5M
Registered Direct Offering 2025-01-21
$1.8M

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Growth Metrics

+45%
Employee Growth
YoY
3.2x
Funding Growth
Last Round
12
Markets
Operating
10K+
Customers
Active

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Team & Leadership

R

Robert Bitterman

President & Chief Executive Officer

L

Lisa Carson

VP of Finance and Administration

L

Linda Mahoney

SVP of Development

J

Jennifer Phillips

VP of Regulatory & Corporate Affairs

R

Robert M. Infarinato

VP Strategic Development

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Recent News

Phio Pharmaceuticals Corp. Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Read more →

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Read more →

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Read more →

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Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised

Mock Up

Company Details

Industries
Biopharmaceutical
Company Size
~50 employees (est.)
Locations
Marlborough, Massachusetts

Technology Stack

Discover the backend, frontend, and infrastructure technologies powering this company's products.

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