Public ownership evidence

Rallybio Corporation Common Stock (RLYB) Ownership Disclosures

Read RLYB insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent institutional filing receipts

Rallybio Corporation Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Manager
Nantahala Capital Management, LLC
Report period
2026-06-30
Available
2026-08-20
Reported shares
188,422
Value (USD)
$3,014,752
Option
None
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

13F 0001104659-26-098416
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read RLYB fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read RLYB fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

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No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

See the complete recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Nantahala Capital Management, LLC2026-06-302026-08-20188,422$3,014,752None
Almitas Capital LLC2026-06-302026-08-18120,682$1,930,912None
ADAR1 Capital Management, LLC2026-06-302026-08-15926,352$14,821,632None
TPG GP A, LLC2026-06-302026-08-15378,551$6,056,816None
Rangeley Capital, LLC2026-06-302026-08-15104,850$1,677,600None
XTX Topco Ltd2026-06-302026-08-1521,497$343,952None
JANE STREET GROUP, LLC2026-06-302026-08-1513,579$217,264None
JANE STREET GROUP, LLC2026-06-302026-08-1533,844$541,504None
HRT FINANCIAL LP2026-06-302026-08-1525,657$410,000None
Nantahala Capital Management, LLC2026-06-302026-08-15188,422$3,014,752None
CITADEL ADVISORS LLC2026-06-302026-08-1571,980$1,151,680None
CITADEL ADVISORS LLC2026-06-302026-08-157,633,807$11,580,810None
VIKING GLOBAL INVESTORS LP2026-06-302026-08-15524,347$8,389,552None
TWO SIGMA INVESTMENTS, LP2026-06-302026-08-1516,619$265,904None
BARCLAYS PLC2026-06-302026-08-153$48None
WELLS FARGO & COMPANY/MN2026-06-302026-08-1537$592None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-14172,497$2,759,952None
Vanguard Global Advisers, LLC2026-06-302026-08-141,442$23,072None
UBS Group AG2026-06-302026-08-14146$2,336None
Mariner, LLC2026-06-302026-08-1450,566$809,056None
BNP PARIBAS FINANCIAL MARKETS2026-06-302026-08-14120$1,920None
RENAISSANCE TECHNOLOGIES LLC2026-06-302026-08-14199,907$3,198,512None
Pivotal bioVenture Partners Investment Advisor LLC2026-06-302026-08-14300,579$4,809,264None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-1416,820$269,120None
MORGAN STANLEY2026-06-302026-08-14125$2,000None
FMR LLC2026-06-302026-08-14211,798$3,388,768None
FMR LLC2026-06-302026-08-14265,132$4,242,112None
FMR LLC2026-06-302026-08-14317,790$5,084,640None
Truvestments Capital LLC2026-06-302026-08-13129$2,064None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-136,567$105,072None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1325,480$407,793None
JPMORGAN CHASE & CO2026-06-302026-08-139$145None
Allworth Financial LP2026-06-302026-08-126$96None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-121,250$20,000None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-1211,280$180,480None
DANSKE BANK A/S2026-06-302026-08-111$16None
BlackRock, Inc.2026-06-302026-08-0817,705$283,280None
BlackRock, Inc.2026-06-302026-08-0811,832$189,312None
BlackRock, Inc.2026-06-302026-08-08795$12,720None
Quadrature Capital Ltd2026-06-302026-08-0812,995$207,920None
STATE STREET CORP2026-06-302026-08-0812,996$207,936None
Caitong International Asset Management Co., Ltd2026-06-302026-08-06434$6,944None
EverSource Wealth Advisors, LLC2026-06-302026-07-2531$496None
Hartford Financial Management Inc.2026-06-302026-07-25812$12,992None
SBI Securities Co., Ltd.2026-06-302026-07-24506$8,096None
Fortitude Family Office, LLC2026-06-302026-07-2153$848None

90-day public filing window, up to 50 source positions.

Nantahala Capital Management, LLC ↗Almitas Capital LLC ↗ADAR1 Capital Management, LLC ↗TPG GP A, LLC ↗Rangeley Capital, LLC ↗XTX Topco Ltd ↗JANE STREET GROUP, LLC ↗JANE STREET GROUP, LLC ↗HRT FINANCIAL LP ↗Nantahala Capital Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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