HYLN SEC Filings: 8-K, 10-Q, S-3 & 424B – Hyliion

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 11, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 12, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Feb 24, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 12, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 12, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 13, 2025

News

TYPE

HEADLINE

FILED AT

Prospectus

TYPE

HEADLINE

FILED AT

424B5

[No Baby Shelf]* August 2026 ATM | Offering amount: $100,000,000 | Bank: Needham & Company, LLC; Northland Securities, Inc.

Aug 11, 2026

424B3

UPDATED | SHARE RESALE REGISTRATION | Shares amount: 88,642,440

Jan 28, 2022

424B3

UPDATED

Jan 5, 2022

424B3

UPDATED

Nov 9, 2021

424B3

UPDATED

Oct 14, 2021

424B3

UPDATED

Aug 26, 2021

Registrations

TYPE

HEADLINE

FILED AT

8-A12B

Form 8-A12B - Registration of securities [Section 12(b)]

Sep 21, 2026

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Aug 11, 2026

S-3

February 2026 SHELF

Feb 25, 2026

8-A12B

Form 8-A12B - Registration of securities [Section 12(b)]

Nov 6, 2024

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Aug 6, 2024

POS AM

Form POS AM - Post-Effective amendments for registration statement

Dec 30, 2021

Proxies

TYPE

HEADLINE

FILED AT

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 7, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 8, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

May 15, 2024

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 10, 2024

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 7, 2023

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 7, 2023

Ownerships

TYPE

HEADLINE

FILED AT

Standley Greg (Reporting)

Oct 1, 2026

Oxholm Jose Miguel (Reporting)

Oct 1, 2026

MOOK JOSHUA T. (Reporting)

Oct 1, 2026

Panzer Jon (Reporting)

Oct 1, 2026

Healy Thomas J. (Reporting)

Oct 1, 2026

Cubbage Vincent T. (Reporting)

Oct 1, 2026

Other

TYPE

HEADLINE

FILED AT

Form SD - Specialized disclosure report

May 29, 2026

EFFECT

Form EFFECT - Notice of Effectiveness

Mar 6, 2026

LETTER

Form UPLOAD - SEC-generated letter

Mar 3, 2026

CORRESP

Form CORRESP - Correspondence

Mar 2, 2026

Form SD - Specialized disclosure report

May 30, 2025

Form SD - Specialized disclosure report

May 30, 2024

Hyliion Holdings Corp. HYLN · SEC Filings