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Caribou Biosciences (CRBU) trims losses and highlights CAR-T data in Q2 2026

(Moderate)
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Caribou Biosciences, Inc. reported second quarter 2026 results and updated progress on its allogeneic CAR‑T pipeline. For vispacabtagene regedleucel (vispa‑cel) in second‑line large B cell lymphoma, ANTLER phase 1 data in 27 optimized patients showed an 82% overall response rate, 67% complete response rate, and 17.1‑month median progression‑free survival, with a generally well‑tolerated safety profile. The company plans a pivotal ANTLER‑3 phase 3 trial enrolling about 250 CD19‑naïve 2L LBCL patients.

For CB‑011 in relapsed or refractory multiple myeloma, CaMMouflage phase 1 dose‑escalation data at the 450‑million‑cell dose in 12 BCMA‑naïve patients showed a 92% overall response rate, 83% ≥CR rate, and 91% MRD negativity, with durable responses after a single dose. Caribou is enrolling BCMA‑naïve and BCMA‑exposed patients in dose expansion, with initial expansion data expected in the second half of 2026.

Financially, second‑quarter 2026 licensing and other revenue was $1.5 million versus $2.7 million a year earlier. Research and development expenses fell to $18.9 million from $27.7 million, and general and administrative expenses declined to $7.9 million from $10.4 million. GAAP net loss narrowed to $24.3 million, or $0.24 per share, compared with $54.1 million, or $0.58 per share, which previously included $21.3 million in non‑cash impairment charges. Cash, cash equivalents, and marketable securities totaled $113.8 million as of June 30, 2026, and the company expects this to fund its current operating plan, including CB‑011 dose expansion and ANTLER‑3 start‑up activities, to the end of 2027.

Positive

  • Net loss sharply reduced: GAAP net loss fell to $24.3 million in Q2 2026 from $54.1 million a year earlier, aided by lower operating expenses and the absence of prior‑year impairment charges.
  • Operating expense structure improved: Research and development expenses declined to $18.9 million from $27.7 million, and general and administrative expenses fell to $7.9 million from $10.4 million year over year.
  • Extended cash runway: With $113.8 million in cash, cash equivalents, and marketable securities at June 30, 2026, management expects to fund the current operating plan through the end of 2027.
  • Strong vispa‑cel efficacy signal: In optimized second‑line LBCL patients (N=27), vispa‑cel achieved an 82% ORR, 67% CR rate, and 17.1‑month median PFS with a generally well‑tolerated safety profile.
  • Compelling CB‑011 responses: At the recommended expansion dose in BCMA‑naïve multiple myeloma patients (N=12), CB‑011 produced a 92% ORR, 83% ≥CR rate, and 91% MRD negativity, with durable single‑dose responses.
  • Regulatory designations de‑risk development: Both vispa‑cel and CB‑011 have FDA RMAT, Fast Track, and Orphan Drug designations in their respective indications, which can support expedited development and review.

Negative

  • Revenue declined: Licensing and other third‑party revenue fell to $1.5 million in Q2 2026 from $2.7 million in the prior‑year quarter.
  • Cash balance decreased: Cash, cash equivalents, and marketable securities declined to $113.8 million at June 30, 2026, from $142.8 million at December 31, 2025, and the company is exploring options to fully fund its planned ANTLER‑3 phase 3 trial.

Filing Explained

As of June 30, 2026, Caribou Biosciences reported $113.8 million in cash, cash equivalents, and marketable securities and said those resources should fund its current operating plan through the end of 2027, while it explores multiple options to fully fund the planned ANTLER-3 pivotal trial.

Item 2.02 Results of Operations and Financial Condition Financial
Disclosure of earnings results, typically an earnings press release or preliminary financials.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Licensing and other revenue $1.5 million Three months ended June 30, 2026; compared with $2.7 million in 2025
Research and development expenses $18.9 million Three months ended June 30, 2026; down from $27.7 million in 2025
General and administrative expenses $7.9 million Three months ended June 30, 2026; down from $10.4 million in 2025
GAAP net loss $24.3 million Three months ended June 30, 2026; versus $54.1 million in 2025
Net loss per share $0.24 Basic and diluted, three months ended June 30, 2026; versus $0.58 in 2025
Cash, cash equivalents, and marketable securities $113.8 million Balance as of June 30, 2026; versus $142.8 million at December 31, 2025
Vispa‑cel ORR in optimized 2L LBCL 82% Overall response rate in 27‑patient subgroup at 80 million CAR‑T cells
CB‑011 ORR in BCMA‑naïve MM 92% Overall response rate in 12 BCMA‑naïve patients at 450 million CAR‑T cells
allogeneic CAR-T cell therapy medical
"vispacabtagene regedleucel (vispa-cel) is an allogeneic CAR-T cell therapy"
A therapy in which immune cells taken from a healthy donor are genetically reprogrammed to recognize and kill cancer cells and then given to a patient; think of it as an off‑the‑shelf, engineered immune weapon rather than one made from the patient’s own tissue. It matters to investors because this approach can be faster and cheaper to manufacture at scale than patient‑specific therapies, but carries additional risks such as immune rejection, regulatory hurdles and complex manufacturing that affect clinical success, costs and commercial potential.
Regenerative Medicine Advanced Therapy regulatory
"The FDA granted vispa-cel Regenerative Medicine Advanced Therapy (RMAT) designation"
Regenerative Medicine Advanced Therapy (RMAT) is a U.S. regulatory designation for cell, gene, and tissue‑based therapies intended to treat serious or life‑threatening conditions; it gives developers a “fast lane” with more frequent agency interaction and eligibility for accelerated review pathways. For investors, an RMAT label signals that a therapy may reach market faster and face less regulatory uncertainty than a standard program, which can raise the potential value and reduce timeline risk—though it is not a guarantee of approval.
Fast Track regulatory
"The FDA granted CB-011 RMAT, Fast Track, and Orphan Drug designations"
A fast track designation is a regulatory label that speeds up the review and communication between a drug developer and regulators for treatments addressing serious illnesses or unmet medical needs. For investors, it matters because it can shorten development time and reduce regulatory delays—like getting a VIP lane at the airport—raising the chance of earlier market access and potential revenue, though it does not guarantee approval.
Orphan Drug regulatory
"The FDA granted vispa-cel RMAT, Fast Track, and Orphan Drug designations for B-NHL"
A drug designated for an orphan disease is a medicine developed to treat a rare condition that affects only a small number of people. Regulators often give these drugs special incentives—such as reduced costs, faster review, and temporary exclusive selling rights—to encourage development, which matters to investors because those incentives can make a small market financially viable and reduce competition, much like a temporary patent on a niche product.
minimal residual disease medical
"91% minimal residual disease (MRD) negativity in 10/11 evaluable patients"
Minimal residual disease (MRD) is the tiny number of cancer cells that remain in the body after treatment, often too few to show up on standard scans but detectable with very sensitive tests. For investors, MRD is important because it predicts the risk of relapse and can determine whether a therapy is seen as effective, influences regulatory and reimbursement decisions, and affects the size and timing of a drug’s market opportunity—like spotting the last weeds that can make a garden regrow if not removed.
progression-free survival medical
"17.1-month median progression-free survival (PFS)"
Progression-free survival is the length of time during and after a treatment that a patient's disease does not get worse, measured from the start of treatment until the disease shows measurable signs of progression or the patient dies. Investors care because longer progression-free survival in clinical trials often signals that a drug is effective, improving chances of regulatory approval, market adoption, and revenue potential—think of it as a stopwatch showing how long a therapy can keep the illness at bay.
Licensing and other third-party revenue $1.5 million Down from $2.7 million for the three months ended June 30, 2025
Research and development expenses $18.9 million Down from $27.7 million for the three months ended June 30, 2025
General and administrative expenses $7.9 million Down from $10.4 million for the three months ended June 30, 2025
GAAP net loss $24.3 million Improved from $54.1 million for the three months ended June 30, 2025
Cash, cash equivalents, and marketable securities $113.8 million Down from $142.8 million as of December 31, 2025
Guidance

Management expects cash, cash equivalents, and marketable securities to fund its current operating plan, including CB-011 dose expansion and ANTLER-3 start-up activities, to the end of 2027.

FAQ

How did Caribou Biosciences (CRBU) perform financially in Q2 2026?

Caribou Biosciences reported a GAAP net loss of $24.3 million, or $0.24 per share, in Q2 2026, compared with $54.1 million, or $0.58 per share, in Q2 2025. Lower R&D and G&A expenses contributed to the narrower loss.

What were Caribou Biosciences (CRBU) Q2 2026 revenues and expenses?

Licensing and other third‑party revenue was $1.5 million in Q2 2026 versus $2.7 million a year earlier. Research and development expenses were $18.9 million, while general and administrative expenses were $7.9 million, both significantly lower than in Q2 2025.

What is Caribou Biosciences’ (CRBU) cash runway after Q2 2026?

Caribou held $113.8 million in cash, cash equivalents, and marketable securities as of June 30, 2026. Management expects this to fund its current operating plan, including CB‑011 dose expansion and ANTLER‑3 start‑up activities, through the end of 2027.

What efficacy data were reported for vispa‑cel by Caribou Biosciences (CRBU)?

In the ANTLER phase 1 trial’s optimized 2L LBCL subgroup (N=27), vispa‑cel showed an 82% overall response rate and 67% complete response rate, with 17.1‑month median progression‑free survival and a generally well‑tolerated safety profile after a single dose.

What clinical results did Caribou Biosciences (CRBU) report for CB‑011?

In CaMMouflage phase 1 at the 450‑million‑cell dose in 12 BCMA‑naïve r/r multiple myeloma patients, CB‑011 achieved a 92% overall response rate, 83% ≥CR rate, and 91% MRD negativity, with durable responses following a single dose.

What are Caribou Biosciences’ (CRBU) next clinical milestones for vispa‑cel and CB‑011?

Caribou plans to initiate the ANTLER‑3 pivotal phase 3 trial in about 250 2L LBCL patients and is enrolling BCMA‑naïve and BCMA‑exposed patients in CB‑011 dose expansion, with initial expansion data expected in the second half of 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FALSE000161985600016198562026-08-132026-08-13

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
________________________________________
FORM 8-K
________________________________________
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): August 13, 2026
________________________________________
Caribou Biosciences, Inc.
(Exact name of Registrant as Specified in Its Charter)
________________________________________
Delaware001-4063145-3728228
(State or Other Jurisdiction
of Incorporation)
(Commission File Number)(IRS Employer
Identification No.)
2929 7th Street, Suite 105
Berkeley, California
94710
(Address of Principal Executive Offices)(Zip Code)
Registrant’s Telephone Number, Including Area Code: (510) 982-6030
N/A
(Former Name or Former Address, if Changed Since Last Report)
________________________________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading
Symbol(s)
Name of each exchange on which registered
Common Stock, $0.0001 par value per shareCRBUNASDAQ Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.



Item 2.02 Results of Operations and Financial Condition.
On August 13, 2026, Caribou Biosciences, Inc., a Delaware corporation (the “Company”), issued a press release announcing the Company’s financial results for the quarter ended June 30, 2026, and providing a business update. A copy of this press release is furnished as Exhibit 99.1 and is incorporated herein by reference.

The information in Item 2.02 of this Current Report on Form 8-K (including Exhibit 99.1 attached hereto) is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in any such filing, except as expressly set forth by specific reference in such filing.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
Exhibit No.Description
99.1
Press Release Issued by Caribou Biosciences, Inc. on August 13, 2026
104Cover Page Interactive Data File (embedded within the Inline XBRL document)



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Caribou Biosciences, Inc.
Date:August 13, 2026By:  /s/ Rachel E. Haurwitz
Rachel E. Haurwitz, Ph.D.
President and Chief Executive Officer

Exhibit 99.1
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Caribou Biosciences Reports Second Quarter 2026 Financial Results and Provides Business Update

-- ANTLER phase 1 data presented at EHA 2026 reinforce vispa-cel safety, efficacy, and durability are on par with approved autologous CAR-T cell therapies and that vispa-cel has the potential to overcome access barriers for patients with 2L LBCL --

-- CaMMouflage dose escalation phase 1 data presented at EHA 2026 demonstrate single dose of CB-011 produced deep, durable responses in high-risk, late-line BCMA-naïve r/r MM patients; initial dose expansion data in BCMA-naïve and BCMA-exposed patients expected in H2 2026 --

BERKELEY, Calif., August 13, 2026 (GLOBE NEWSWIRE) -- Caribou Biosciences, Inc. (Nasdaq: CRBU), a leading clinical-stage CRISPR genome-editing biopharmaceutical company, today reported financial results for the second quarter of 2026 and provided a business update.

"At Caribou, we are redefining what patients and physicians should expect from allogeneic CAR-T cell therapy," said Rachel Haurwitz, PhD, president and CEO of Caribou. "The data presented at EHA 2026 continue to demonstrate that a single dose of vispa-cel can produce durable responses on par with autologous CAR-T cell therapies in patients with second-line large B cell lymphoma, and a single dose of CB-011 results in deep, durable responses in high-risk patients with relapsed or refractory multiple myeloma. With our off-the-shelf approach, these programs have the potential to dramatically expand CAR-T cell therapy access for patients."

Clinical highlights
Vispacabtagene regedleucel (vispa-cel; formerly CB-010), a clinical-stage allogeneic anti-CD19 CAR-T cell therapy for patients with relapsed or refractory B cell non-Hodgkin lymphoma
In June, long-term follow-up clinical data from the ANTLER phase 1 clinical trial were presented at the 2026 European Hematology Association (EHA) Annual Meeting. Data presented reinforced vispa-cel is the only single-dose, off-the-shelf therapy to demonstrate deep and durable responses on par with autologous CAR-T cell therapies in second-line (2L) large B cell lymphoma (LBCL). Efficacy and safety data in 2L LBCL patients who had received a single dose of 80 million optimized vispa-cel CAR-T cells (N=27) included:
82% overall response rate (ORR)
67% complete response (CR) rate
17.1-month median progression-free survival (PFS)
Generally well-tolerated safety profile
Optimized vispa-cel is defined as cells from a donor younger than 30 years old with at least two matched human leukocyte antigen (HLA) alleles between patient and donor. The 27-patient subgroup best represents the treatment regimen and patient population for Caribou's planned ANTLER-3 pivotal phase 3 clinical trial.
Caribou previously reached alignment with the U.S. Food and Drug Administration (FDA) regarding its planned ANTLER-3 pivotal phase 3 clinical trial design, which is expected to be a randomized, controlled clinical trial enrolling approximately 250 CD19-naïve 2L LBCL patients who are not eligible for transplant and not candidates or not eligible for autologous CAR-T cell therapy based on access challenges or medical criteria, including the urgent need for therapy.
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CB-011, a clinical-stage allogeneic anti-BCMA CAR-T cell therapy for patients with relapsed or refractory multiple myeloma (r/r MM)
In June, longer follow-up dose escalation clinical data from the CaMMouflage phase 1 clinical trial were presented at the 2026 EHA Annual Meeting. Data continue to demonstrate that CB-011 drives deep, durable responses after a single dose. Twelve BCMA-naïve patients were treated with the recommended dose for expansion (RDE) of 450 million CB-011 CAR-T cells after lymphodepletion. Efficacy and safety data for this cohort included:
92% ORR
83% CR or stringent CR (≥CR) rate
91% minimal residual disease (MRD) negativity in 10/11 evaluable patients
50% of patients in ≥CR at 15 months
Manageable safety profile
Caribou also reported a patient case study of a 71-year-old male with r/r MM who received eight prior lines of therapy, including ciltacabtagene autoleucel, an approved autologous CAR-T cell therapy. Before entering CaMMouflage, the patient never achieved a CR following any of his post-front-line therapies. After receiving a single dose of 450 million CB-011 CAR-T cells (the RDE), the patient achieved a CR at day 28 that was maintained at month 3 and remained ongoing as of the May 26, 2026, efficacy data cutoff date.
Caribou is enrolling BCMA-naïve and prior BCMA therapy-exposed r/r MM patients in the dose expansion portion of the CaMMouflage trial. In the second half of 2026, Caribou expects to report initial safety and efficacy from dose expansion on more than 15 patients with a minimum of three months follow up, as well as longer follow-up data on the 12-patient, BCMA-naïve RDE cohort from dose escalation.
Second quarter 2026 financial results
Licensing and other third-party revenue: Revenue from licensing and other third-party agreements was $1.5 million for the three months ended June 30, 2026, compared to $2.7 million for the same period in 2025.

R&D expenses: Research and development expenses were $18.9 million for the three months ended June 30, 2026, compared to $27.7 million for the same period in 2025. The decrease was primarily related to decreased external contract manufacturing organization and contract research organization activities; expenses related to the reduction in workforce and strategic pipeline prioritization announced in April 2025; facilities and allocated expenses; and expenses related to licenses, sublicensing revenue, and milestones.

G&A expenses: General and administrative expenses were $7.9 million for the three months ended June 30, 2026, compared to $10.4 million for the same period in 2025. The decrease was primarily due to personnel-related expenses related to the reduction in workforce and strategic pipeline prioritization announced in April 2025; lower legal expenses; other service-related expenses; and other facilities and allocated expenses.

GAAP net loss and net loss per share, basic and diluted: Caribou reported a GAAP net loss of $24.3 million, or $0.24 per share, basic and diluted, for the three months ended June 30, 2026, compared to $54.1 million, or $0.58 per share, basic and diluted, for the same period in 2025, which included $21.3 million in non-cash impairment charges.
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Cash, cash equivalents, and marketable securities: Caribou had $113.8 million in cash, cash equivalents, and marketable securities as of June 30, 2026, compared to $142.8 million as of December 31, 2025. Caribou now expects that its cash, cash equivalents, and marketable securities will be sufficient to fund its current operating plan, including dose expansion for CB-011 and certain start-up activities for its planned ANTLER-3 pivotal phase 3 clinical trial for vispa-cel, to the end of 2027. Caribou is exploring multiple options to fully fund its planned ANTLER-3 clinical trial.

About vispacabtagene regedleucel
Vispacabtagene regedleucel (vispa-cel; formerly known as CB-010) is an allogeneic anti-CD19 CAR-T cell therapy evaluated in patients with relapsed or refractory B cell non-Hodgkin lymphoma (r/r B-NHL). To Caribou’s knowledge, vispa-cel is the first allogeneic CAR-T cell therapy in the clinic with a PD-1 knockout, a genome-editing strategy designed to enhance CAR-T cell activity by limiting premature CAR-T cell exhaustion. The FDA granted vispa-cel Regenerative Medicine Advanced Therapy (RMAT), Fast Track, and Orphan Drug designations for B-NHL.

About the ANTLER phase 1 clinical trial
The ANTLER phase 1 clinical trial evaluated vispa-cel in adult patients with r/r B-NHL in a multicenter, open-label trial. Eighty-five patients were treated in the trial. Using a 3+3 enrollment strategy, safety and efficacy were assessed in 16 patients in dose escalation who received a single dose of 40, 80, or 120 million CAR-T cells preceded by a lymphodepletion (LD) regimen of cyclophosphamide at 60 mg/kg/day for 2 days followed by fludarabine at 25 mg/m2/day for 5 days. Sixty-three second-line large B cell lymphoma (2L LBCL) patients received a single dose of vispa-cel during dose expansion. Eighty million CAR-T cells was selected as the recommended phase 2 dose (RP2D). Six patients were enrolled in a cohort of third-line or later LBCL patients with prior exposure to CD19-targeted therapy. Additional information on the ANTLER trial (NCT04637763) can be found at www.clinicaltrials.gov.

About CB-011
CB-011 is an allogeneic anti-BCMA CAR-T cell therapy being evaluated in patients with relapsed or refractory multiple myeloma (r/r MM). To Caribou’s knowledge, CB-011 is the first allogeneic CAR-T cell therapy in the clinic that is engineered to enable activity through an immune cloaking strategy with a B2M knockout and insertion of a B2M–HLA-E-peptide fusion protein to blunt immune-mediated rejection. The FDA granted CB-011 RMAT, Fast Track, and Orphan Drug designations for r/r MM.

About the CaMMouflage phase 1 clinical trial
The CaMMouflage clinical trial is a multicenter, open-label phase 1 trial evaluating CB-011 in adults with r/r MM who have been treated with three or more prior lines of therapy. Using a 3+3 dose escalation design, safety and efficacy of CB-011 were evaluated in 48 patients at multiple dose levels and two different lymphodepletion (LD) regimens. Thirty-five patients were treated with a single dose of CB-011 (150 million [N=6], 300 million [N=13], 450 million [N=13], and 800 million [N=3] CAR-T cells) with an LD regimen of 500 mg/m2 cyclophosphamide and 30 mg/m2 fludarabine daily for three days. The dose expansion portion of the trial is evaluating safety and efficacy of 450 million CB-011 CAR-T cells with the selected LD of 500 mg/m2 cyclophosphamide and 30 mg/m2 fludarabine daily for three days. Additional information on the CaMMouflage trial (NCT05722418) can be found at www.clinicaltrials.gov.

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About Caribou Biosciences, Inc.
Caribou is a clinical-stage CRISPR genome-editing biopharmaceutical company dedicated to developing transformative therapies for patients with devastating diseases. Caribou’s chRDNA genome-editing technology enables superior precision to develop cell therapies that are armored to potentially improve activity against diseases. Caribou is focused on vispacabtagene regedleucel (vispa-cel) and CB-011 as off-the-shelf CAR-T cell therapies that have the potential to provide broad access and rapid treatment for patients with hematologic malignancies. Follow the Company @CaribouBio and visit www.cariboubio.com.

Forward-looking statements and important information
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential,” or “continue,” or the negative of these terms or other similar expressions, although not all forward-looking statements contain these words. These forward-looking statements include, but are not limited to, any statements regarding the initiation, timing, progress, strategy, plans, objectives, expectations (including as to the results) with respect to the Company’s CAR-T cell therapy product candidate clinical trials, including the expected design, protocol, and timing of initiation of the pivotal phase 3 clinical trial for vispa-cel in 2L LBCL CD19-naïve patients and its expectations regarding reporting initial dose expansion data and longer follow-up dose escalation data in the second half of 2026 from its ongoing CaMMouflage phase 1 clinical trial for CB-011 in patients with r/r MM; its ability to successfully develop its CAR-T cell therapy product candidates and to obtain and maintain regulatory approval for these product candidates; the likelihood of its clinical trials demonstrating safety and efficacy of its CAR-T cell therapy product candidates; the beneficial characteristics, safety, efficacy, therapeutic effects, and potential advantages of its CAR-T cell therapy product candidates; the expected timing or likelihood of regulatory filings and approval for its CAR-T cell therapy product candidates; and the sufficiency of its cash, cash equivalents, and marketable securities to fund its current operating plan to the end of 2027. Management believes that these forward-looking statements are reasonable as and when made. However, such forward-looking statements are subject to risks and uncertainties, and actual results may differ materially from any future results expressed or implied by the forward-looking statements. Risks and uncertainties include, without limitation, risks inherent in the development of allogeneic CAR-T cell therapy products; uncertainties related to the initiation, cost, timing, progress, and results of its current and future clinical trials; the risk that initial, preliminary, or interim clinical trial data will not ultimately be predictive of the safety and efficacy of its CAR-T cell therapy product candidates or that clinical outcomes may differ as patient enrollment continues and as more patient data becomes available; the risk that different conclusions or considerations are reached once additional data have been received and fully evaluated; the ability to obtain key regulatory input and approvals; and risks related to its limited operating history, history of net operating losses, financial position, and its ability to raise additional capital as needed to fund its operations and CAR-T cell therapy product candidate development, including the ability to fully fund its pivotal phase 3 clinical trial for vispa-cel; as well as other risk factors described from time to time in the Company’s filings with the Securities and Exchange Commission (SEC), including its Annual Report on Form 10-K for the year ended December 31, 2025, and subsequent SEC filings. In light of the significant uncertainties in these forward-looking statements, you should not rely upon forward-looking statements as predictions of future events. Except as required by law, the Company undertakes no obligation to update publicly any forward-looking statements for any reason.
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Caution should be exercised when interpreting results from separate trials involving commercially approved autologous CAR-T cell therapies. The results of autologous CAR-T cell therapies referenced in this press release have been derived from publicly available reports of clinical trials not conducted by the Company, and the Company has not performed any head-to-head trials comparing any of these autologous CAR-T cell therapies with vispa-cel. As such, the results of these autologous CAR-T cell therapy clinical trials may not be comparable to clinical results for vispa-cel. The autologous CAR-T cell therapy clinical trials vary in material ways from the ANTLER clinical trial for vispa-cel including with respect to trial design and duration, patient population, patient characteristics, clinical trial phase, treatment protocols, investigators, and other important factors. As a result, cross-trial comparisons may have no interpretive value on the Company’s existing or future clinical results. For further information and to understand these material differences, you should read the reports for the autologous CAR-T cell therapy clinical trials and the sources included in the Company’s corporate presentations on its website.

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Caribou Biosciences, Inc.
Condensed Consolidated Balance Sheet Data
(in thousands)
(unaudited)
June 30,
2026
December 31,
2025
Cash, cash equivalents, and marketable securities$113,818 $142,845 
Total assets142,774 175,367 
Total liabilities44,672 53,192 
Total stockholders’ equity98,102 122,175 
Total liabilities and stockholders' equity
  
$142,774 $175,367 
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Caribou Biosciences, Inc.
Condensed Consolidated Statement of Operations
(in thousands, except share and per share data)
(unaudited)
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
Licensing and other third-party revenue$1,499 $2,667 $3,896 $5,020 
Operating expenses:
Research and development18,942 27,692 39,553 63,223 
General and administrative7,896 10,403 15,962 20,138 
Impairment charges
— 12,150 — 12,150 
Total operating expenses26,838 50,245 55,515 95,511 
Loss from operations(25,339)(47,578)(51,619)(90,491)
Other income (expense)
Impairment of equity investment
— (9,158)— (9,158)
Other income, net1,057 2,638 2,252 5,560 
Total other income (expense)1,057 (6,520)2,252 (3,598)
Net loss(24,282)(54,098)(49,367)(94,089)
Other comprehensive loss
Net unrealized loss on available-for-sale marketable securities, net of tax(48)(127)(174)(215)
Net comprehensive loss$(24,330)$(54,225)$(49,541)$(94,304)
Net loss per share, basic and diluted$(0.24)$(0.58)$(0.50)$(1.01)
Weighted-average common shares outstanding, basic and diluted100,985,698 93,028,698 98,437,862 92,855,060 

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Caribou Biosciences, Inc. contact:
Peggy Vorwald, PhD
investor.relations@cariboubio.com
media@cariboubio.com

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