How many institutions held RLYB - Rallybio Corp - Common Stock, par value $0.0001 per share in Q2 2023?

57 institutional investors reported RLYB - Rallybio Corp - Common Stock, par value $0.0001 per share for Q2 2023. Use the holders table for investor-level position and value details.

Rallybio Corp - Common Stock, par value $0.0001 per share (RLYB)

Q: What does CUSIP 75120L100 represent in this 13F holders report?

CUSIP 75120L100 is the security identifier for RLYB - Rallybio Corp - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

CUSIP: 75120L100

Q2 2023 13F Holders as of 30 Jun 2023

Type / Class: Equity / Common Stock, par value $0.0001 per share
Shares outstanding: 5,292,937
Total 13F shares: 33,260,971
Share change: +1,150,612
Total reported value: $188,259,076
Price per share: $5.66
Number of holders: 57
Value change: +$6,505,885
Number of buys: 34
Number of sells: 13

Quarterly Holders Quick Answers

What is CUSIP 75120L100?
CUSIP 75120L100 identifies RLYB - Rallybio Corp - Common Stock, par value $0.0001 per share in SEC institutional holdings data.

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Back to full security ownership history for the broader multi-quarter picture.
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Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q3 2023
Previous quarter: Q1 2023

Recent filing periods for CUSIP 75120L100:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of RLYB - Rallybio Corp - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
5AM Opportunities I, L.P.	3/4/5	10%+ Owner	— class O/S missing	3,730,724	$30,591,937	—	03 Jun 2022	3/4/5
5AM Partners V, LLC	3/4/5	10%+ Owner	— class O/S missing	3,630,724	$29,771,937	—	07 Mar 2023	3/4/5
VIKING GLOBAL INVESTORS LP	13F 3/4/5	Company · 10%+ Owner	79%	4,194,777	$23,952,177	—	31 Mar 2023	13F 3/4/5
5AM Ventures V, L.P.	3/4/5	10%+ Owner	— class O/S missing	2,784,626	$22,833,933	—	29 Jul 2021	3/4/5
5AM Venture Management, LLC	13F	Company	69%	3,630,724	$20,731,434	—	31 Mar 2023	13F
New Leaf Venture Partners, L.L.C.	13F	Company	62%	3,301,603	$18,852,153	—	31 Mar 2023	13F
FMR LLC	13F	Company	61%	3,245,255	$18,530,406	—	31 Mar 2023	13F
TPG GP A, LLC	13F	Company	57%	3,028,414	$17,292,244	—	31 Mar 2023	13F
Pivotal bioVenture Partners Investment Advisor LLC	13F	Company	45%	2,404,644	$13,730,517	—	31 Mar 2023	13F
Novo Holdings A/S	13F	Company	43%	2,270,110	$12,962,328	—	31 Mar 2023	13F
Canaan Partners XI LLC	13F	Company	39%	2,059,712	$11,760,956	—	31 Mar 2023	13F
Tekla Capital Management LLC	13F	Company	33%	1,727,067	$9,861,553	—	31 Mar 2023	13F
VANGUARD GROUP INC	13F	Company	19%	995,020	$5,681,565	—	31 Mar 2023	13F
BlackRock Finance, Inc.	13F	Company	18%	931,495	$5,318,837	—	31 Mar 2023	13F
Laurion Capital Management LP	13F	Company	15%	783,391	$4,473,163	—	31 Mar 2023	13F
CHI Advisors LLC	13F	Company	14%	760,543	$4,342,701	—	31 Mar 2023	13F
SECTORAL ASSET MANAGEMENT INC	13F	Company	10%	551,937	$3,151,560	—	31 Mar 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	6.9%	363,760	$2,077,069	—	31 Mar 2023	13F
CITADEL ADVISORS LLC	13F	Company	6.7%	353,319	$2,017,452	—	31 Mar 2023	13F
STATE STREET CORP	13F	Company	5.2%	273,992	$1,564,494	—	31 Mar 2023	13F
VR Adviser, LLC	13F	Company	5.1%	268,532	$1,533,318	—	31 Mar 2023	13F
Vontobel Holding Ltd.	13F	Company	3.3%	175,977	$1,004,829	—	31 Mar 2023	13F
CAAS CAPITAL MANAGEMENT LP	13F	Company	3.1%	164,328	$938,313	—	31 Mar 2023	13F
NORTHERN TRUST CORP	13F	Company	2.9%	154,435	$881,824	—	31 Mar 2023	13F
Jeffrey M. Fryer	3/4/5	Chief Financial Officer & Treasurer	— class O/S missing	47,048	$385,794	—	21 Mar 2022	3/4/5
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	1%	54,652	$312,063	—	31 Mar 2023	13F
Bank of New York Mellon Corp	13F	Company	0.97%	51,334	$293,117	—	31 Mar 2023	13F
JPMORGAN CHASE & CO	13F	Company	0.59%	31,357	$179,000	—	31 Mar 2023	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.58%	30,503	$174,172	—	31 Mar 2023	13F
Deutsche Girozentrale DekaBank	13F	Individual	0.57%	30,000	$168,000	—	31 Mar 2023	13F
RHUMBLINE ADVISERS	13F	Company	0.44%	23,106	$132,000	—	31 Mar 2023	13F
Nuveen Asset Management, LLC	13F	Company	0.43%	22,825	$130,000	—	31 Mar 2023	13F
HARBOURVEST PARTNERS LLC	13F	Company	0.41%	21,877	$124,918	—	31 Mar 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.39%	20,579	$117,506	—	31 Mar 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.39%	20,499	$117,049	—	31 Mar 2023	13F
Mariner, LLC	13F	Company	0.34%	17,919	$102,000	—	31 Mar 2023	13F
State of Tennessee, Department of Treasury	13F	Company	0.31%	16,625	$94,929	—	31 Mar 2023	13F
DEUTSCHE BANK AG\	13F	Company	0.31%	16,439	$93,867	—	31 Mar 2023	13F
Utah Retirement Systems	13F	Company	0.25%	13,240	$75,600	—	31 Mar 2023	13F
Northeast Financial Consultants Inc	13F	Company	0.25%	13,066	$74,607	—	31 Mar 2023	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.2%	10,365	$59,184	—	31 Mar 2023	13F
Ergoteles LLC	13F	Company	0.19%	10,068	$57,488	—	31 Mar 2023	13F
MERCER GLOBAL ADVISORS INC /ADV	13F	Company	0.19%	10,000	$57,000	—	31 Mar 2023	13F
BARCLAYS PLC	13F	Company	0.18%	9,577	$54,685	—	31 Mar 2023	13F
MORGAN STANLEY	13F	Company	0.18%	9,334	$53,297	—	31 Mar 2023	13F
AMERICAN INTERNATIONAL GROUP, INC.	13F	Company	0.17%	9,081	$51,853	—	31 Mar 2023	13F
RESOURCES MANAGEMENT CORP /CT/ /ADV	13F	Company	0.01%	450	$44,000	—	31 Mar 2023	13F
UBS Group AG	13F	Company	0.13%	7,056	$40,290	—	31 Mar 2023	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.13%	6,995	$39,941	—	31 Mar 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.07%	3,878	$22,143	—	31 Mar 2023	13F

Institutional Holders of Rallybio Corp - Common Stock, par value $0.0001 per share (RLYB) as of Q2 2023

As of 30 Jun 2023, Rallybio Corp - Common Stock, par value $0.0001 per share (RLYB) was held by 57 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 33,260,971 shares. The largest 10 holders included VIKING GLOBAL INVESTORS LP, 5AM Venture Management, LLC, New Leaf Venture Partners, L.L.C., FMR LLC, TPG GP A, LLC, Pivotal bioVenture Partners Investment Advisor LLC, Novo Holdings A/S, Canaan Partners XI LLC, Tekla Capital Management LLC, and BlackRock Inc.. This page lists 57 institutional shareholders reporting positions in this security for the Q2 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

Q2 2023 holders

Holder diff

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 Value $	Q2 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.