Alpha Tau Medical Ltd. (DRTS) SEC Filings & Earnings Calls
EquiReason read 35 Alpha Tau Medical Ltd. SEC filings in the last 12 months. Latest: 6-K on 2026-10-22 — Alpha Tau signed an MOU with Samsung Medical Center to explore a clinical trial of Alpha DaRT for pancreatic cancer in Korea; no financial terms or definitive agreement disclosed..
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
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last 12 months · SECWhat happened, the numbers inside, guidance and risks. The original is one click away.
22 Oct 20266-KAlpha Tau signed an MOU with Samsung Medical Center to explore a clinical trial of Alpha DaRT for pancreatic cancer in Korea; no financial terms or definitive agreement disclosed.open
Risks flagged
MOU is non-binding and subject to regulatory and ethics committee approvals; no guarantee of a definitive agreement or trial initiation.
“Any such trial would be subject to regulatory and ethics committee approvals.” · word for word
Alpha Tau has limited operating history and has incurred significant losses; needs additional funding.
“Alpha Tau’s limited operating history; Alpha Tau’s incurrence of significant losses to date; Alpha Tau’s need for additional funding and ability to raise capital when needed.”
19 Oct 20266-KFDA approved IDE supplement to expand REGAIN trial from 10 to 20 patients for recurrent glioblastoma, adding endpoints and interim analysis; abstract accepted at SNO 2026.open
Figures in the filing · each found in the filing text
| enrolled patients · Q4-2026 | 20 | +100% y/y |
Risks flagged
Clinical trial risk remains; glioblastoma is a challenging indication with limited treatment options.
“Glioblastoma is the most common malignant primary brain tumor in the U.S. with extremely limited treatment options.”
31 Aug 20266-KAlpha Tau completes patient enrollment in IMPACT pancreatic cancer pilot study of Alpha DaRT, with enrollment expanded three times to 48 patients due to strong demand; data release targeted for early 2027.open
Figures in the filing · each found in the filing text
| Patients enrolled · IMPACT study · 2026-08-31 | 48 |
Risks flagged
Clinical trial risk: data release not expected until early 2027; pivotal study design pending.
“With data release targeted for early 2027, IMPACT is intended to inform the design of a planned pivotal study.” · word for word
10 Aug 20266-KAlpha Tau Medical Ltd. announces intention to dual-list its ordinary shares on the Tel Aviv Stock Exchange (TASE) alongside its Nasdaq listing, registering outstanding and potential future shares for trading.open
Risks flagged
No material financial or operational risk disclosed; dual listing is a strategic move with limited immediate impact.
“No risk factors or financial metrics mentioned in the filing.”
21 Jul 20266-KAlpha Tau reports positive Phase 2 data: 100% ORR, 18.2-month median OS with Alpha DaRT + pembrolizumab in HNSCC; surpasses pre-specified threshold; trial stopped early for success.open
Figures in the filing · each found in the filing text
| Objective response rate · HNSCC · 2026-07-21 | 100.0% | |
| Median overall survival · HNSCC · 2026-07-21 | $18.20 | |
| Median progression-free survival · HNSCC · 2026-07-21 | $5.40 | |
| Complete response rate · HNSCC · 2026-07-21 | 44.0% |
15 Jul 20266-KAlpha Tau treated first immunocompromised patient in ADMIRE study for recurrent cSCC; early milestone, no efficacy data yet.open
Risks flagged
Clinical trial risk; no efficacy data yet.
“First patient treated; no results reported.”
11 Jun 20266-KAlpha Tau receives FDA clearance to complete enrollment in REGAIN glioblastoma trial; interim results show 100% local disease control, 67% complete response rate.open
Figures in the filing · each found in the filing text
| local disease control rate · recurrent glioblastoma · 2026-05-03 | 100.0% | |
| complete response rate · recurrent glioblastoma · 2026-05-03 | 67.0% |
Risks flagged
Small sample size (3 patients); early stage trial.
“interim results from the first three patients”
3 Jun 20266-KAlpha Tau entered into collaboration and supply agreements with Tolmar for exclusive U.S. commercialization rights for Alpha DaRT in prostate cancer, with $15M initial payment and up to $161.5M in milestones.open
Figures in the filing · each found in the filing text
| Initial payment · 2026-06-02 | $15M | |
| Milestone payments · unknown | $162M | |
| Gross proceeds · 2026-06-02 | $20M |
Risks flagged
Dependence on Tolmar's commercialization efforts and potential termination rights.
“Tolmar has the right to terminate the Tolmar Agreements without cause at any time.” · word for word
1 Jun 20266-KAlpha Tau announced strong overall survival results from Alpha DaRT pancreatic cancer studies at ASCO 2026, showing mOS of 11.2 months in metastatic second-line vs historical ~4-6 months.open
Figures in the filing · each found in the filing text
| Median overall survival (mOS) - second-line metastatic · pancreatic cancer · unknown | $11.20 | |
| Median overall survival (mOS) - second-line locally advanced · pancreatic cancer · unknown | $11.10 | |
| Treatment-associated adverse events rate · unknown | 36.0% | |
| Grade >=3 adverse events rate · unknown | 9.0% |
Risks flagged
Clinical data from pooled analysis, not a pivotal trial; further validation needed.
“Pooled analysis of three Phase I/II studies; IMPACT trial recruitment ongoing.”
18 May 20266-KAlpha Tau reported interim results from REGAIN trial in recurrent glioblastoma: 100% local disease control, 67% complete response rate; completed enrollment in pivotal ReSTART trial; positive pancreatic cancer data presented at DDW 2026.open
Figures in the filing · each found in the filing text
| Cash and cash equivalents · Q1-2026 | $80M |
Risks flagged
Clinical and regulatory risk: REGAIN trial is small (up to 10 patients); ReSTART is pivotal but FDA approval not guaranteed; pancreatic data is early-stage.
“REGAIN study is expected to enroll up to ten U.S. patients... ReSTART is the Company’s first U.S. pivotal study to complete enrollment - a critical milestone on the path toward potential FDA pre-market approval (PMA)” · word for word
11 May 20266-KPositive interim results from REGAIN trial: 100% local disease control, 67% complete response rate, favorable safety in recurrent glioblastoma.open
Figures in the filing · each found in the filing text
| local disease control rate · recurrent glioblastoma · May 3, 2026 | 100.0% | |
| complete response rate · recurrent glioblastoma · May 3, 2026 | 67.0% |
Risks flagged
Small sample size (n=3) limits statistical significance; one grade 3 SAE observed.
“Only three patients treated; one grade 3 SAE (seizure with temporary paralysis) resolved with steroids.”
11 May 20266-KInterim clinical data from REGAIN trial of Alpha DaRT for recurrent glioblastoma presented;open
Risks flagged
Clinical trial risk; interim data may not predict final outcomes.
“interim clinical data from REGAIN trial”
8 May 20266-KCompletion of enrollment in ReSTART pivotal trial for recurrent cSCC; milestone toward FDA PMA approval.open
Figures in the filing · each found in the filing text
| patients enrolled · ReSTART trial · May 8, 2026 | 88 |
Risks flagged
Trial results pending; regulatory approval not guaranteed.
“Pivotal trial data not yet available; FDA PMA process ongoing.”
7 May 20266-KAlpha Tau Medical successfully treated first pancreatic cancer patient in Italy with Alpha DaRT, expanding clinical program globally with new delivery routes.open
Risks flagged
Clinical trial risk remains; early-stage feasibility study with small sample size
“Study is feasibility and safety; no efficacy data reported yet.”
5 May 20266-KAlpha Tau announces podium presentation of top-line data from Alpha DaRT + pembrolizumab combo in head and neck cancer at AHNS conference; abstract accepted, no efficacy/safety results disclosed in filing.open
Risks flagged
No efficacy or safety data disclosed; clinical readout risk remains.
“abstract accepted for podium presentation; no results provided in filing.”
4 May 20266-KAlpha DaRT pancreatic cancer trials show 100% local disease control rate and favorable safety profile in heavily pre-treated patients; results presented at DDW 2026.open
Figures in the filing · each found in the filing text
| local disease control rate · pancreatic cancer | 100.0% | |
| device-associated adverse events rate · pancreatic cancer | 27.0% |
Risks flagged
Clinical data from small, early-stage trials; regulatory and commercial risk remains.
“pooled analysis of two first-in-human trials; 26 subjects treated.” · word for word
27 Apr 20266-KAlpha Tau announces abstract acceptance at ASCO 2026 for pooled pancreatic cancer data from 58 patients across three studies; positive validation of Alpha DaRT program.open
Figures in the filing · each found in the filing text
| Patients enrolled · Pancreatic cancer · point_in_time | 58 |
Risks flagged
Clinical data not yet published; abstract only accepted; full results pending.
“Abstract to be published May 21, 2026; no efficacy/safety data disclosed.”
31 Mar 20266-KAlpha Tau announces first-ever oral presentation of Alpha DaRT pancreatic cancer data at DDW 2026, marking a milestone for the technology in a major gastroenterology conference.open
Risks flagged
Clinical data still early; full results not yet disclosed; regulatory approval uncertain.
“Forward-looking statements highlight risks including regulatory approval, clinical trial enrollment, and need for additional funding.”
9 Mar 202620-FAlpha Tau Medical Ltd. filed its annual report on Form 20-F for the fiscal year ended December 31, 2025, reporting a net loss of $42,627 and an accumulated deficit of $190,136, with no revenue generated.earningsopen
Figures in the filing · each found in the filing text
| Net loss · FY2025 | $43M | +34% y/y |
| Accumulated deficit · 2025-12-31 | $190M | |
| Net proceeds from equity offering · 2025-04-28 | $37M | |
| Issued patents · 2025-12-31 | 140 | |
| Pending patent applications · 2025-12-31 | 240 | |
| Outstanding warrants to purchase ordinary shares · 2026-03-01 | 18,984,561 | |
| Outstanding stock options · 2026-03-01 | 15,985,500 | |
| Outstanding RSUs · 2026-03-01 | 597,700 | |
| Ordinary shares outstanding · 2025-12-31 | 88,009,737 |
Risks flagged
No revenue and history of losses
“We have incurred significant losses since inception and have not generated any revenue to date. We expect to incur losses over the next several years and may not be able to achieve or sustain revenues or profitability in the future.” · word for word
Novel technology development risk
“Our approach to the development of our proprietary Alpha DaRT technology represents a novel approach to radiation therapy, which creates significant and potentially unpredictable challenges for us.” · word for word
Regulatory approval uncertainty
“We may not receive, or may be delayed in receiving, the necessary marketing authorizations or certifications for our Alpha DaRT technology or any future products or product candidates, and failure to timely obtain necessary marketing authorizations or certifications for our product candidates would have a material adverse effect on our business.” · word for word
Dependence on sole suppliers for key components
“We rely on several sole suppliers for certain components of our Alpha DaRT technology.” · word for word
Dependence on radioisotope supply
“We may be unable to obtain a sufficient or sufficiently pure supply of radioisotopes to support clinical development or at commercial scale.” · word for word
9 Mar 20266-KAlpha Tau reports FY2025 results with positive clinical data: 22% ORR in pancreatic cancer, FDA approvals for multiple trials, Japanese marketing approval for head and neck cancer.open
Figures in the filing · each found in the filing text
| Cash, cash equivalents & deposits · FY2025 | $77M | |
| Objective response rate (ORR) · pancreatic cancer · 2026-01 | 22.0% | |
| Disease control rate (DCR) · pancreatic cancer · 2026-01 | 81.0% | |
| Alpha DaRT sources nameplate capacity · manufacturing · FY2026 | 400,000 |
Risks flagged
Clinical trial risks remain; patient recruitment and regulatory approvals are ongoing.
“Multiple meaningful milestones targeted in the coming months, including completion of patient recruitment in the U.S. pivotal ReSTART skin cancer trial.” · word for word
Dependence on successful clinical outcomes and regulatory approvals for commercialization.
“The Company submitted the first module of its pre-market approval (PMA) application to the U.S. Food and Drug Administration (FDA).”
24 Feb 20266-KAlpha Tau Medical receives Japanese MHLW Shonin marketing approval for Alpha DaRT in unresectable head and neck cancer, first approval outside Israel, with post-market surveillance study of 66 patients.open
Figures in the filing · each found in the filing text
| PMS study enrollment · Alpha DaRT Japan · post-approval | 66 |
Risks flagged
Post-market surveillance study required; reimbursement not yet established; approval limited to one indication initially.
“As part of the approval, Alpha Tau will need to conduct a post-market surveillance (PMS) study enrolling 66 patients” · word for word
29 Jan 20266-KAlpha Tau provides update on multiple clinical trials; targeting completion of pancreatic cancer study accrual Q1 2026 and initial GBM results end of 2026; potential Japan regulatory approval.open
Risks flagged
Clinical trial risks; regulatory uncertainty
“No assurance of positive regulatory decision; clinical trial outcomes uncertain”
6 Jan 20266-KAlpha Tau reports positive final results from first-in-human pancreatic cancer study of Alpha DaRT, showing 81% disease control rate and immune-preserving profile.open
Figures in the filing · each found in the filing text
| objective response rate · pancreatic cancer | 22.0% | |
| disease control rate · pancreatic cancer | 81.0% |
Risks flagged
Early-stage study; regulatory approval and commercial success uncertain
“First-in-human study; further trials needed for approval”
5 Jan 20266-KAlpha Tau submits first PMA module to FDA for Alpha DaRT in recurrent cSCC; FDA granted modular submission framework and Breakthrough Device Designation; ReSTART pivotal study expected to complete recruitment Q1 2026.open
Risks flagged
Regulatory approval risk remains; PMA process is lengthy and uncertain; ReSTART study results not yet available.
“Forward-looking statements highlight risks including ability to receive regulatory approval, need for additional funding, and clinical trial outcomes.”
9 Dec 20256-KFirst patient treated in U.S. pilot study for recurrent glioblastoma using Alpha DaRT; FDA Breakthrough Device Designation; positive feasibility and safety signal.open
Risks flagged
Clinical trial risk; early-stage data; small sample size (up to 10 patients); no efficacy data yet.
“Pilot study with up to 10 patients; primary objective is feasibility and safety; no efficacy results reported.”
4 Dec 20256-KTwo abstracts accepted for presentation at 2026 ASCO GI Symposium on pancreatic cancer pilot trial; patient recruitment expected to complete by end of Q1 2026.open
Risks flagged
Early-stage clinical trial; no efficacy data; patient recruitment risk.
“Pilot study with up to 30 patients; recruitment expected to complete by end of Q1 2026.”
2 Dec 20256-KAlpha Tau receives FDA approval for IDE to initiate pilot study for locally recurrent prostate cancer using Alpha DaRT technology; fifth active U.S. IDE.open
Risks flagged
Clinical trial risks: small sample size (12 patients), early stage, potential failure to show efficacy or safety.
“The clinical trial is expected to enroll up to 12 U.S. patients... primary objective is to evaluate safety.” · word for word
20 Nov 20256-KAlpha Tau reported Q3 2025 net loss $30.5M (9 months), cash $75.9M; pancreatic cancer trial underway; PMDA decision expected year-end.earningsopen
Figures in the filing · each found in the filing text
| Cash and cash equivalents, short-term deposits and restricted deposits · Q3-2025 | $76M | |
| Net loss · 9 months ended Q | $-31M | |
| Research and Development expenses · 9 months ended Q | $23M |
Risks flagged
Pre-revenue clinical-stage company; net loss and cash burn
“Net loss of $30.5 million for nine months; cash $75.9M”
Alpha Tau Medical Ltd. — questions
- What did Alpha Tau Medical Ltd. file recently?
- 35 SEC filings in the last 12 months. Latest: 6-K on 2026-10-22 — Alpha Tau signed an MOU with Samsung Medical Center to explore a clinical trial of Alpha DaRT for pancreatic cancer in Korea; no financial terms or definitive agreement disclosed.
Every figure on this page comes from Alpha Tau Medical Ltd.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.