Rallybio Corp
RLYBAs of the close on Sep 25, 2026
Price
$16.62
Market cap
$88.3M
P/E (diluted TTM)
—
The fourth quarter's per-share figure could not be confirmed from the annual report
EPS (TTM)
—
The fourth quarter's per-share figure could not be confirmed from the annual report
Dividend yield
—
Dividend records do not yet cover the latest payments
Figures shown here come from public SEC filings. Dates beside each section show the available history.
How Rallybio Corp Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
Pick a year or quarter. Each band's width is its dollar amount.
Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
Loading financial history…
SEC filings supply these figures; updates after the dates shown are not included. This page includes 6 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated May 20, 2026. The latest institutional report shown is dated Dec 31, 2025; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| TWO SIGMA ADVISERS, LP | 2025-12-31 | 19,300 | $13.2K | SEC filing |
| RENAISSANCE TECHNOLOGIES LLC | 2025-12-31 | 835,692 | $573K | SEC filing |
| Hartford Financial Management Inc. | 2025-12-31 | 6,500 | $4.46K | SEC filing |
| Almitas Capital LLC | 2025-12-31 | 1,529,653 | $1.05M | SEC filing |
| XTX Topco Ltd | 2025-12-31 | 97,313 | $66.8K | SEC filing |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2025-12-31 | 100,724 | $69.1K | SEC filing |
| Virtu Financial LLC | 2025-12-31 | 27,132 | Not shown | SEC filing |
| Utah Retirement Systems | 2025-12-31 | 13,240 | $9.08K | SEC filing |
| GREAT VALLEY ADVISOR GROUP, INC. | 2025-12-31 | 15,000 | $10.3K | SEC filing |
| Allworth Financial LP | 2025-12-31 | 50 | $35 | SEC filing |
| TPG GP A, LLC | 2025-12-31 | 3,028,414 | $2.09M | SEC filing |
| HRT FINANCIAL LP | 2025-12-31 | 21,387 | Not shown | SEC filing |
| JOHNSON & JOHNSON | 2025-12-31 | 3,636,363 | $2.49M | SEC filing |
| Ground Swell Capital, LLC | 2025-12-31 | 15,399 | $10.6K | SEC filing |
| BARCLAYS PLC | 2025-12-31 | 5,719 | $3.92K | SEC filing |
| Canaan Partners XI LLC | 2025-12-31 | 450,000 | $309K | SEC filing |
| MERCER GLOBAL ADVISORS INC /ADV | 2025-12-31 | 10,000 | $6.86K | SEC filing |
| BANK OF AMERICA CORP /DE/ | 2025-12-31 | 251 | $172 | SEC filing |
| TWO SIGMA INVESTMENTS, LP | 2025-12-31 | 37,000 | $25.4K | SEC filing |
| NORTHERN TRUST CORP | 2025-12-31 | 38,124 | $26.2K | SEC filing |
- Each value is checked against Rallybio Corp's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 2 rows: the filed value is about 1,000 times too small for the share count at Rallybio Corp's share price.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security.
- 5AM Venture Management, LLC: 3,630,724 shares reported 2025-09-30; 3,630,724 shares reported 2025-12-31.
- VIKING GLOBAL INVESTORS LP: 4,194,777 shares reported 2025-09-30; 4,194,777 shares reported 2025-12-31.
- Tower Research Capital LLC (TRC): 10,181 shares reported 2025-09-30; 4,524 shares reported 2025-12-31.
- WELLS FARGO & COMPANY/MN: 300 shares reported 2025-09-30; 300 shares reported 2025-12-31.
- CITIGROUP INC: 9,895 shares reported 2025-09-30; 3,932 shares reported 2025-12-31.
- Pivotal bioVenture Partners Investment Advisor LLC: 2,404,644 shares reported 2025-09-30; 2,404,644 shares reported 2025-12-31.
- JPMORGAN CHASE & CO: 882 shares reported 2025-09-30; 82 shares reported 2025-12-31.
- CITADEL ADVISORS LLC: 438,705 shares reported 2025-09-30; 253,842 shares reported 2025-12-31.
- PRUDENTIAL FINANCIAL INC: 38,400 shares reported 2025-09-30; 29,100 shares reported 2025-12-31.
- ACADIAN ASSET MANAGEMENT LLC: 90,247 shares reported 2025-09-30; 83,480 shares reported 2025-12-31.
- Mariner, LLC: 404,546 shares reported 2025-09-30; 404,546 shares reported 2025-12-31.
- GEODE CAPITAL MANAGEMENT, LLC: 245,009 shares reported 2025-09-30; 248,005 shares reported 2025-12-31.
Showing the 12 most recent filer reports.
11 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Rallybio Corp's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2022-02-08 · PARMAR KUSH: Larger than 13 of the 14 other insider sales of Common Stock on file. SEC filing
- 2022-02-08 · ROCKLAGE SCOTT M: Larger than 13 of the 14 other insider sales of Common Stock on file. SEC filing
- 2021-08-02 · PARMAR KUSH: Larger than 27 of the 29 other insider purchases of Common Stock on file. SEC filing
- 2021-08-02 · ROCKLAGE SCOTT M: Larger than 27 of the 29 other insider purchases of Common Stock on file. SEC filing
- 2021-07-29 · VIKING GLOBAL INVESTORS LP: Larger than all 29 other insider purchases of Common Stock on file. SEC filing
Independent insiders buying near the same time
- 2022-01-12–2022-01-19: 4 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
- 2022-01-07–2022-01-13: 7 event(s) across 3 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing , filing , filing )
- 2021-07-29–2021-08-02: 6 event(s) across 6 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing , filing )
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-19 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +10,000 | 13.98 | SEC filing |
| 2026-05-19 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +200 | 13.80 | SEC filing |
| 2026-05-18 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +6,009 | 13.98 | SEC filing |
| 2026-05-15 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +100 | 13.80 | SEC filing |
| 2026-05-15 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +200 | 13.95 | SEC filing |
| 2026-05-13 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +75,178 | 14.00 | SEC filing |
| 2026-05-13 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +4,081 | 13.80 | SEC filing |
| 2026-05-12 | Schneeberger Daniel · 10% owner | Common Stock | P — Open market or private purchase | +800 | 13.83 | SEC filing |
Showing 8 of 20 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-02-18 | MACKAY MARTIN · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +18,055 | SEC filing |
| 2026-02-18 | HUNT RONALD · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +14,305 | SEC filing |
| 2026-02-18 | Lieber Jonathan I · Chief Financial Officer | Common Stock | A — Grant, award, or other acquisition | +2,500 | SEC filing |
| 2025-05-13 | Boudreau Helen M · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +28,500 | SEC filing |
| 2025-05-13 | MACKAY MARTIN · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +28,500 | SEC filing |
| 2025-05-13 | Liu Hui · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +28,500 | SEC filing |
| 2025-05-13 | Nash Christine A · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +28,500 | SEC filing |
| 2025-05-13 | HUNT RONALD · Director | Option (Right to Buy) | A — Grant, award, or other acquisition | +28,500 | SEC filing |
Showing 8 of 14 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2021-07-28 | Fryer Jeffrey M · See Remarks | Common Units | J — Other acquisition or disposition | −1,282,500 | SEC filing |
| 2021-07-28 | Uden Stephen · See Remarks | Common Units | J — Other acquisition or disposition | −4,820,000 | SEC filing |
| 2021-07-28 | SHANNON TIMOTHY M · Director | Series A-1 Preferred Units | J — Other acquisition or disposition | −1,795,946 | SEC filing |
| 2021-07-28 | PARMAR KUSH · Director | Common Stock | J — Other acquisition or disposition | +2,784,626 | SEC filing |
| 2021-07-28 | SHANNON TIMOTHY M · Director | Series B Preferred Units | J — Other acquisition or disposition | −4,315,676 | SEC filing |
| 2021-07-28 | HUNT RONALD · Director | Series A-1 Preferred Units | J — Other acquisition or disposition | −1,795,946 | SEC filing |
| 2021-07-28 | SHANNON TIMOTHY M · Director | Common Stock | J — Other acquisition or disposition | +2,332,789 | SEC filing |
| 2021-07-28 | Fryer Jeffrey M · See Remarks | Series A-1 Preferred Units | J — Other acquisition or disposition | −75,000 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.