RLYB SEC Filings: 8-K, 10-Q, S-3 & 424B – Rallybio

Financials

TYPE

HEADLINE

FILED AT

10-Q

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

Oct 27, 2026

10-Q

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

Aug 6, 2026

10-Q

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

May 13, 2026

10-K

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

Mar 16, 2026

10-Q

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

Nov 6, 2025

10-Q

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

Aug 7, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Rallybio Corporation Postpones Closing of Merger and Reorganization with Avenzo Therapeutics

Nov 6, 2026

8-K

Rallybio Stockholders Approve Avenzo Therapeutics Merger and Special Cash Distribution of $83.6 Million

Nov 4, 2026

8-K

Rallybio Declares $82.7 Million Special Cash Distribution in Connection with Proposed Merger with Avenzo Therapeutics

Oct 26, 2026

8-K

Rallybio CFO Jonathan Lieber Transitions to Part-Time Status Ahead of Avenzo Merger

Sep 9, 2026

8-K

Rallybio Corporation and Avenzo Therapeutics Announce Merger Agreement and $215 Million Private Placement

Jun 1, 2026

8-K

Rallybio Corporation Terminates Merger Agreement with Candid Therapeutics

May 4, 2026

Prospectus

TYPE

HEADLINE

FILED AT

425

Form 425 - Prospectuses and communications, business combinations

Nov 6, 2026

425

Form 425 - Prospectuses and communications, business combinations

Oct 26, 2026

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Oct 15, 2026

425

Form 425 - Prospectuses and communications, business combinations

Jun 1, 2026

425

Form 425 - Prospectuses and communications, business combinations

Mar 2, 2026

424B5

ATM | Offering amount: $9,550,000 | Amount sold to date: $0 | Float: 31,146,868

Mar 13, 2025

Registrations

TYPE

HEADLINE

FILED AT

S-4/A

Form S-4/A - Registration of securities, business combinations: [Amend]

Oct 14, 2026

S-4/A

Form S-4/A - Registration of securities, business combinations: [Amend]

Oct 2, 2026

S-4/A

Form S-4/A - Registration of securities, business combinations: [Amend]

Sep 15, 2026

S-4/A

Citizens JMP Securities, LLC Consents to Inclusion of Fairness Opinion in Rallybio Corporation Registration Statement EFFECTIVE, DATED 2026-10-15

Aug 26, 2026

S-4

Citizens JMP Securities, LLC Consents to Inclusion of Fairness Opinion in Rallybio Corporation Registration Statement EFFECTIVE, DATED 2026-10-15

Jul 15, 2026

Form RW - Registration Withdrawal Request

May 5, 2026

Proxies

TYPE

HEADLINE

FILED AT

DEF 14A