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DNLI · Current Report (Form 8-K) · Filed May 22, 2026

Denali Therapeutics Inc — Current Report (Form 8-K)

Form
8-K
Filed
May 22, 2026
Period
May 21, 2026
Ticker
DNLI
Accession
0001714899-26-000070
Boardroom Alpha · Filing insights

Denali and Biogen announce topline results from Phase 2b LUMA study of BIIB122 (DNL151) in early-stage Parkinsons disease.

About Denali Therapeutics Inc
Market cap
$3.1B
1Y TSR
+35.9%
3Y TSR
−14.1%
Board grade
C-
Sector
Healthcare
CEO
Ryan J Watts
Last annual meeting: Jun 3, 2026 · View full Denali Therapeutics Inc profile →
dnli-20260521

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):
May 21, 2026
Denali Therapeutics Inc.
(Exact name of registrant as specified in its charter)
Delaware001-3831146-3872213
(State or other jurisdiction of(Commission(I.R.S. Employer
incorporation)File Number)Identification No.)
161 Oyster Point Blvd.
South San Francisco, California 94080
(Address of principal executive offices, including zip code)

(650) 866-8547
(Registrant’s telephone number, including area code)

Not Applicable
(Former name or former address, if changed since last reports)

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 classTrading Symbol (s) Name of each exchange on which registered
Common Stock, par value $0.01 per shareDNLINasdaq 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 7.01     Regulation FD Disclosure.

On May 21, 2026, Denali Therapeutics Inc. (the “Company”) and Biogen Inc. issued a press release announcing topline results from the Phase 2b LUMA study evaluating BIIB122 (DNL151) in individuals with early-stage Parkinson’s disease. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8‑K and is incorporated herein by reference.

The information in this Item 7.01 (including Exhibit 99.1) 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 under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.
Item 9.01     Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.Description
99.1
104Cover Page Interactive Data File (formatted as Inline XBRL)



SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

DENALI THERAPEUTICS INC.
Date:May 21, 2026By:/s/ Ryan J. Watts
Ryan J. Watts, Ph.D.
President and Chief Executive Officer


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Reference

Frequently asked questions

When did Denali Therapeutics Inc file this 8-K?
Denali Therapeutics Inc (DNLI) filed this Current Report (Form 8-K) with the SEC on May 22, 2026. The accession number assigned by EDGAR is 0001714899-26-000070.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Denali and Biogen announce topline results from Phase 2b LUMA study of BIIB122 (DNL151) in early-stage Parkinsons disease. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Denali Therapeutics Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Denali Therapeutics Inc has filed under CIK 1714899, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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