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Swing Therapeutics

Acquired

San Francisco, US · Founded 2019 · Delaware corporation · 4 known investors

Find your way into Swing Therapeutics

Digital therapeutics developer behind Stanza, an FDA-authorized smartphone behavioral therapy for fibromyalgia symptoms.

Also known as Swing · Swing Therapeutics, Inc.

Founders & leadership

Swing Therapeutics was founded in 2019 by Michael Rosenbluth.

MR
Michael RosenbluthFounder

Board

AFAndrew Firlik
Andrew Firlikin𝕏Board directorManaging Partner at JAZZ Venture Partners
ZLZack Lynch
Zack Lynchin𝕏Board directorManaging Partner at JAZZ Venture Partners
CM
Corey McCannBoard director

Investors · 4

Funding

SEC filings, press & company announcements

$34.2M disclosed across 4 of 7 rounds · 2019–2025

$3.3MraisedSep 2025 · 1 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Michael RosenbluthExecutive Officer, Director
  • Corey McCannDirector
  • Andrew FirlikDirector
  • Zack LynchDirector
Offering amount
$3.3M
Amount sold
$3.3M
First sale
Aug 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$11.4MraisedAug 2025 · 14 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Corey McCannDirector
  • Andrew FirlikDirector
  • Michael RosenbluthExecutive Officer, Director
  • Zack LynchDirector
Offering amount
$14.6M
Amount sold
$11.4M
First sale
May 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$10.3MraisedJul 2022 · 11 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Michael RosenbluthExecutive Officer, Director
  • Andrew FirlikDirector
  • Zack LynchDirector
Offering amount
$12.5M
Amount sold
$10.3M
First sale
Jan 2022
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$9.2MraisedJul 2022 · 5 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Zack LynchDirector
  • Michael RosenbluthExecutive Officer, Director
  • Andrew FirlikDirector
Offering amount
$9.3M
Amount sold
$9.2M
First sale
Aug 2019
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Swing Therapeutics is a San Francisco-based digital therapeutics company founded in 2019 to develop software-based treatments and services for conditions where patients are underserved and digital interventions may be effective. Its focus is on autoimmune conditions and chronic overlapping pain conditions such as fibromyalgia, in which central pain sensitization is a significant factor. The company's lead product, Stanza, is a 12-week digital behavioral therapy for fibromyalgia symptoms delivered through a smartphone app and based on Acceptance and Commitment Therapy (ACT), a form of cognitive behavioral therapy. Treatment involves roughly 15 minutes of daily use, with lessons and interactive exercises intended to help patients apply ACT principles to their own circumstances.

Alongside the therapeutic itself, Swing operates Swing Care, a virtual specialty clinic launched in 2022 for fibromyalgia and chronic pain. Swing Care physicians and nurse practitioners can prescribe Stanza and provide additional services including medication management, mental health therapy, physical therapy, and coaching. Swing Therapeutics is not involved in the medical decisions of the practices delivering care; the practices operate under license from the corporate parent, which supplies administrative, management, and business support services, a structure used to comply with rules barring corporations from practicing medicine.

In July 2026 Swing Therapeutics and Swing Care were acquired by XRHealth, a medical virtual reality platform company based in Needham, Massachusetts, in what was reported as XRHealth's sixth acquisition in two years and its first move into smartphone-based treatments.

Founding story

Swing Therapeutics was founded in 2019 by Mike Rosenbluth, PhD, who holds BS and MS degrees in mechanical engineering from Stanford and a PhD from UC Berkeley, where he spent six years in Daniel Fletcher's biophysics lab studying cell mechanics. Before founding the company he worked about four years at McKinsey as an engagement manager on healthcare clients, two years at Versant Ventures, and five years at cancer diagnostics company Veracyte in pulmonology strategy and business development. He has described starting Swing to address the gap between Acceptance and Commitment Therapy's clinical evidence base and international fibromyalgia guideline recommendations on one hand, and patients' limited access to trained clinicians on the other, with a strategy of running a rigorous trial and publishing the data.

Business model

Swing develops a prescription digital therapeutic and pairs it with an affiliated telehealth clinic. Rather than waiting for broad health-plan coverage of Stanza as a standalone product, the company routes patients through Swing Care, whose clinicians prescribe Stanza and bill insurers for clinical services such as physician and nurse practitioner visits, medication management, therapy, physical therapy, and coaching even when Stanza itself is not covered. The clinical practices are independent and physician-owned, operating under license from the corporate parent, which provides administrative, management, and business support services.

Revenue derives from prescription digital therapy and associated virtual clinic services; billing for clinical services delivered by affiliated Swing Care practices is a route to reimbursement independent of coverage for Stanza itself. Highmark Health has issued a positive coverage decision for Stanza. Medicare began paying for FDA-cleared digital mental health treatments in 2025 and has considered but not extended coverage to Swing's treatment.

Traction

In the PROSPER-FM Phase 3 trial, 70.6% of Stanza users reported improvement on patient global impression of change over 12 weeks versus 22.2% in the control group, with no adverse events reported; results were published in The Lancet in July 2024. The earlier REACT-FM real-world study enrolled more than 100 people with fibromyalgia. At the time of acquisition the company said it was treating thousands of patients through its clinics, and Swing Care operated in several states including Illinois, Tennessee, and Texas.

Latest developments

On July 15, 2026, STAT reported that XRHealth had acquired Swing Therapeutics and Swing Care for undisclosed terms, the VR company's sixth acquisition in two years and its first in smartphone-based treatments. Founder and former CEO Mike Rosenbluth remained as a consultant; the company had other treatments in development that were not detailed. Prior to the acquisition, Swing had raised $30 million, including $11 million in the preceding year, and had secured Stanza coverage from Highmark Health.

Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Swing describes Stanza as the first FDA-cleared prescription digital behavioral therapy for fibromyalgia symptoms. It operated in a digital therapeutics sector under strain, following the January 2023 bankruptcy of category leader Pear Therapeutics, and was characterized in coverage of its acquisition as part of a later wave of developers marketing treatments through affiliated telehealth clinics. XRHealth's acquisition placed Swing's assets alongside virtual-reality-based behavioral health and chronic pain offerings.

Swing pursued formal regulatory authorization and peer-reviewed Phase 3 evidence for a non-drug fibromyalgia treatment, an area where pharmacological options have limited efficacy and tolerability issues. Its pairing of the therapeutic with an owned-affiliate telehealth clinic gives it a billing pathway that does not depend on standalone reimbursement of the software, a structural response to the reimbursement failures that affected other prescription digital therapeutics companies.

Technology

Stanza is a smartphone-delivered digital behavioral therapy based on Acceptance and Commitment Therapy, structured as a 12-week program of roughly 15 minutes per day with lessons and interactive exercises. The company also developed a Digital Symptom Tracker, a daily-use program combining symptom monitoring with fibromyalgia and general health education, which served as an active control in its pivotal trial. Development is supported by proprietary software and clinical research, including randomized controlled trials and real-world evidence studies.

Go-to-market

Distribution runs primarily through Swing Care, the company's affiliated virtual fibromyalgia clinic, whose providers prescribe Stanza and deliver wraparound care; this bypasses the workflow friction of introducing new technology to traditional clinicians. The company has pursued regulatory milestones (Breakthrough Device Designation, De Novo authorization) and peer-reviewed publication as a basis for payer engagement, securing coverage from Highmark.

Adults with fibromyalgia, a chronic pain condition estimated to affect around 10 million people in the United States, along with the prescribing clinicians and health plans that pay for their care; the company also positions its approach for broader autoimmune and chronic overlapping pain conditions.

Geography

Headquartered in San Francisco, California, with a mailing address at 548 Market Street. Swing Care operates in several U.S. states, including Illinois, Tennessee, and Texas. Following the acquisition, the business sits within Needham, Massachusetts-based XRHealth.

History

Founded in 2019, Swing ran a SMART-FM pilot study whose results were presented at the American College of Rheumatology annual meeting in November 2021, followed by the real-world REACT-FM study. The company received FDA Breakthrough Device Designation for its fibromyalgia digital therapeutic, launched the Swing Care virtual clinic in 2022, and closed a $10.3M Series A in June 2022 while beginning the PROSPER-FM pivotal Phase 3 randomized controlled trial. Stanza received FDA De Novo marketing authorization in May 2023, and PROSPER-FM results were published in The Lancet in July 2024. Highmark issued a coverage decision for Stanza, and an additional financing was reported in 2025. In July 2026, XRHealth acquired Swing Therapeutics and Swing Care for undisclosed terms.

Risks & controversies

The digital therapeutics market has been difficult: physicians and insurers have been slow to adopt prescription digital treatments, and multiple companies have gone bankrupt or exited, including Pear Therapeutics in January 2023. Medicare has considered but not extended its digital mental health treatment coverage to Swing's product. Commentary on the acquisition noted that bundling technologies ranging from VR headsets to mobile apps can create integration friction and a fragmented clinician experience, and that consolidation does not by itself resolve systemic reimbursement hurdles. The affiliated-clinic structure exists to work within rules barring corporate practice of medicine.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Daily Stanza treatment timeJan 202615 minutes per day
EmployeesJan 202622 people
Patients treated through affiliated clinicsJul 2026thousands
PROSPER-FM Phase 3 response rate (control arm)Jul 202422.2%
PROSPER-FM Phase 3 response rate (Stanza arm)Jul 202470.6%
REACT-FM real-world study enrollmentJun 2022100 patients
Stanza treatment course lengthJul 202612 weeks
Total funding raised prior to acquisitionJul 2026$30M

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 9

launches, deals, and filings
Jul 2026
XRHealth acquires Swing Therapeutics and Swing Care

Medical virtual reality company XRHealth acquired Swing Therapeutics and its Swing Care virtual clinic for undisclosed terms; it was XRHealth's sixth acquisition in two years and its first smartphone-based treatment asset. Founder and former CEO Mike Rosenbluth stayed on as a consultant.

source ↗

Aug 2025
SEC filing reports $11.4M raised of a $14.6M offering

$11.4M source ↗

Jan 2025
Swing Care virtual clinic operating in Illinois, Tennessee and Texas

The affiliated virtual specialty clinic, launched in 2022, expanded its state footprint.

source ↗

Jan 2025
Highmark Health issues coverage decision for Stanza

Highmark, a large Blue Cross Blue Shield plan, announced coverage for Stanza.

source ↗

Jul 2024
PROSPER-FM Phase 3 results published in The Lancet

Results showed 70.6% of Stanza users reporting improvement on patient global impression of change versus 22.2% of the active control group, with no adverse events.

source ↗

May 2023
FDA De Novo marketing authorization for Stanza

Stanza received FDA De Novo authorization as a prescription digital therapeutic for fibromyalgia symptoms.

source ↗

Jun 2022
Swing Therapeutics closes $10.3M Series A led by JAZZ Venture Partners

Funding earmarked to execute the PROSPER-FM randomized clinical trial and launch an affiliated telemedicine clinic.

$10.3M source ↗

Jun 2022
PROSPER-FM pivotal Phase 3 trial begins

Multicenter randomized trial comparing a Digital Acceptance and Commitment Therapy program against a Digital Symptom Tracker in fibromyalgia, led by investigator Lesley Arnold of the University of Cincinnati.

source ↗

Jun 2022
FDA Breakthrough Device Designation for fibromyalgia digital therapeutic

The FDA granted Breakthrough Device Designation to Swing's digital therapeutic for fibromyalgia management, announced ahead of the pivotal trial.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
Swing TherapeuticsDelaware

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Swing Therapeutics do?
Digital therapeutics developer behind Stanza, an FDA-authorized smartphone behavioral therapy for fibromyalgia symptoms.
Who founded Swing Therapeutics?
Swing Therapeutics was founded by Michael Rosenbluth in 2019.
Who are Swing Therapeutics's investors?
Swing Therapeutics's investors include Kicker Ventures, JAZZ Human Performance, JAZZ Venture Partners, Metrodora Ventures.
How much funding has Swing Therapeutics raised?
Swing Therapeutics has disclosed $34.2M raised across 4 of its 7 known rounds.
Where is Swing Therapeutics headquartered?
Swing Therapeutics is headquartered in San Francisco, US.