Security key
75120L100
Rallybio Corporation - Common Stock, par value $0.0001 per share (RLYB)
CUSIP: 75120L100
Q4 2022 13F Holders as of 31 Dec 2022
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 32,312,322
- Total 13F value
- $212,289,584
- Share change
- +5,277,543
- SEC-reported price per share
- $6.57
- Number of holders
- 55
- Value change
- +$34,532,833
- Number of buys
- 36
- Number of sells
- 12
- Shares outstanding
- 5,294,835
Holder snapshot
6 signals
Security identity
1 source field
Report period
Q4 2022
Institutions
55
Top holders
10
RLYB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2023
Previous quarter: Q3 2022
Rallybio Corp SEC filings
Rallybio Corp company facts
Broader feeds
Reporting periods
Holder history for CUSIP 75120L100
Recent filing periods:
Ownership snapshot
Top reported holders of RLYB - Rallybio Corporation - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VIKING GLOBAL INVESTORS LP
Disclosed value leader
VIKING GLOBAL INVESTORS LP
Comparable rows
15/15
Latest evidence
30 Sep 2022
13F
3/4/5
Lead comparable stake: 79%
Showing 1-6 of 15 holder rows.
Quick read
VIKING GLOBAL INVESTORS LP leads the comparable SEC ownership view at 79%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Comparable ownership
Top 5
VIKING GLOBAL INVESTORS LP
79%
5AM Venture Management, LLC
70%
TPG GP A, LLC
57%
FMR LLC
55%
Canaan Partners XI LLC
46%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP |
13F
3/4/5
Company · 10%+ Owner
|
79%
|
$60,698,000
4,194,777 shares
|
— | 30 Sep 2022 |
| 5AM Venture Management, LLC |
13F
Company
|
70%
|
$53,984,000
3,730,724 shares
|
— | 30 Sep 2022 |
| TPG GP A, LLC |
13F
Company
|
57%
|
$43,821,000
3,028,414 shares
|
— | 30 Sep 2022 |
| FMR LLC |
13F
Company
|
55%
|
$41,874,000
2,893,848 shares
|
— | 30 Sep 2022 |
| Canaan Partners XI LLC |
13F
Company
|
46%
|
$34,869,000
2,409,712 shares
|
— | 30 Sep 2022 |
| New Leaf Venture Partners, L.L.C. |
13F
Company
|
43%
|
$33,304,000
2,301,603 shares
|
— | 30 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
55
Shares
32,312,322
Rows available
55
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2022 vs Q3 2022 Across Filers
Q3 2022 holders
50
Q4 2022 holders
55
Holder diff
5
| Investor | Q3 2022 Shares | Q4 2022 Shares | Share Diff | Share Chg % | Q3 2022 value | Q4 2022 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend