Rallybio Ownership | Who Owns Rallybio?

Overview Forecast RevenueFinancials Chart

Rallybio Ownership Summary

Rallybio is owned by 69.56% institutional investors, 4.14% insiders, and 26.30% retail investors. Viking global investors lp is the largest institutional shareholder, holding 9.35% of RLYB shares. abrdn Healthcare Investors is the top mutual fund, with 1.81% of its assets in Rallybio shares.

RLYB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Rallybio	69.56%	4.14%	26.30%
Sector	Healthcare Stocks	488.17%	11.08%	-399.26%
Industry	Biotech Stocks	306.59%	11.10%	-217.69%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Viking global investors lp	4.19M	9.35%	$1.42M
5am venture management	3.63M	8.14%	$3.49M
Johnson & johnson	3.64M	8.11%	$1.21M
New leaf venture partners	3.30M	7.36%	$1.12M
Tpg gp a	3.03M	6.79%	$2.91M
Pivotal bioventure partners investment advisor	2.40M	5.36%	$812.77K
Almitas capital	1.82M	4.05%	$614.31K
Fmr	1.77M	3.96%	$1.70M
Abrdn	1.60M	3.56%	$539.20K
Canaan partners xi	940.98K	2.10%	$318.05K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
New leaf venture partners	3.30M	2.11%	$1.12M
5am venture management	3.63M	0.83%	$3.49M
Pivotal bioventure partners investment advisor	2.40M	0.50%	$812.77K
Johnson & johnson	3.64M	0.36%	$1.21M
Aju ib investment	754.68K	0.28%	$255.08K
Canaan partners xi	940.98K	0.19%	$318.05K
Almitas capital	1.82M	0.15%	$614.31K
Tpg gp a	3.03M	0.05%	$2.91M
Laurion capital management lp	735.54K	0.00%	$248.61K
Viking global investors lp	4.19M	0.00%	$1.42M

Top Buyers

Holder	Shares	% Assets	Change
Almitas capital	1.82M	0.15%	516.91K
Goldman sachs group	181.20K	-	167.96K
Xtx topco	55.48K	0.00%	55.48K
Renaissance	441.32K	0.00%	37.62K
Hrt financial lp	29.61K	-	29.61K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	315.63K	-	-1.36M
Allostery investments lp	-	-	-752.24K
Canaan partners xi	940.98K	0.19%	-591.57K
Fmr	1.77M	0.00%	-548.78K
Blue owl capital lp	-	-	-350.24K

New Positions

Holder	Shares	% Assets	Change	Value
Hrt financial lp	29.61K	-	29.61K	$10.00K
Two sigma securities	15.15K	0.00%	15.15K	$5.12K
Cubist systematic strategies	1.82K	-	1.82K	$2.44K
Macquarie group	1.57K	-	1.57K	$2.11K
Bnp paribas arbitrage, snc	1.10K	-	1.10K	$1.06K

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-5.00
Farther finance advisors	-9.00
Nisa investment advisors	-25.00
Amalgamated bank	-559.00
Point72 (difc)	-975.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	48	9.09%	31,192,738	31.24%	69	2.47%	17	70.00%	12	-20.00%
Mar 31, 2025	47	-4.08%	32,001,262	-1.32%	71	1.35%	11	-45.00%	15	36.36%
Dec 31, 2024	47	-4.08%	31,658,675	1.43%	70	1.45%	18	38.46%	11	-50.00%
Sep 30, 2024	49	-20.97%	31,212,752	-1.30%	69	1.16%	14	-56.25%	22	46.67%
Jun 30, 2024	62	3.33%	31,624,682	4.72%	77	1.39%	32	18.52%	15	-11.76%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
abrdn Healthcare Investors	755.08K	1.81%	-
Vanguard Total Stock Mkt Idx Inv	635.77K	1.52%	-13.89K
abrdn Healthcare Opportunities Fund	594.62K	1.43%	-
abrdn Healthcare Opportunities	594.62K	1.43%	-
Fidelity Select Biotechnology	581.09K	1.40%	-
abrdn Life Sciences Investors	245.57K	0.59%	-131.81K
Fidelity Global Micro-Cap F	175.00K	0.42%	-
Vanguard Institutional Extnd Mkt Idx Tr	170.88K	0.41%	-77.86K
Fidelity Extended Market Index	124.67K	0.30%	-
Vifag 2002 SICAV	100.00K	0.24%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 14, 2023	Lieber Jonathan I	-	Buy	$26.05K
Mar 07, 2023	PARMAR KUSH	-	Sell	$820.00K
Mar 07, 2023	5AM Partners V, LLC	-	Sell	$820.00K
Nov 15, 2022	VIKING GLOBAL INVESTORS LP	-	Buy	$20.00M
Jun 03, 2022	PARMAR KUSH		Sell	$1.25M

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	-	-
2025 Q1	-	-
2024 Q2	-	-
2024 Q1	-	-
2023 Q2	-	-

RLYB Ownership FAQ

Who Owns Rallybio?

Rallybio shareholders are primarily institutional investors at 69.56%, followed by 4.14% insiders and 26.30% retail investors. The average institutional ownership in Rallybio's industry, Biotech Stocks , is 306.59%, which Rallybio falls below.

Who owns the most shares of Rallybio?

Rallybio’s largest shareholders are Viking global investors lp (4.19M shares, 9.35%), 5am venture management (3.63M shares, 8.14%), and Johnson & johnson (3.64M shares, 8.11%). Together, they hold 25.61% of Rallybio’s total shares outstanding.

Does Blackrock own Rallybio?

BlackRock is not among the top 10 institutional shareholders of Rallybio.

Who is Rallybio’s biggest shareholder by percentage of total assets invested?

New leaf venture partners is Rallybio’s biggest shareholder by percentage of total assets invested, with 2.11% of its assets in 3.3M Rallybio shares, valued at 1.12M$.

Who is the top mutual fund holder of Rallybio shares?

abrdn Healthcare Investors is the top mutual fund holder of Rallybio shares, with 1.81% of its total shares outstanding invested in 755.08K Rallybio shares.

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