RALLYBIO CORP (RLYB) is held by 26 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is FMR LLC as of Q2 2026.

Are institutions buying or selling RLYB?

In Q2 2026, 13 institutions opened or increased positions in RALLYBIO CORP while 5 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on RLYB?

HoldingsIntel scores RALLYBIO CORP across four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) — with 3 of the 4 carrying data for RLYB. In Q2 2026, the institutional leg showed net inflows: 13 buying versus 5 selling.

How many hedge funds hold RLYB?

26 institutional investors report holding RALLYBIO CORP (RLYB) as of Q2 2026, based on SEC 13F filings.

Is institutional money flowing into RLYB?

As of Q2 2026, tracked institutions in RALLYBIO CORP show 13 buyers versus 5 sellers — net inflows.

RALLYBIO CORP

RLYB·75120L100·US·Common Stock·Healthcare - Biotechnology-Activist

Holders

(2 Elite)

$38.8M

Total Value

72% (18)

Consensus

13 buying - 5 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

View all

Held by 26 funds

2 elite

Who's Trading

Source dates: Price Oct 9, 2026 · Insiders Oct 8, 2026 · Activists Mar 3, 2026 · Congress none

InsiderUSUden StephenExercise 22K shOct 6, 2026

InsiderLILieber Jonathan IExercise 5K shSep 29, 2026

InsiderLHLiu HuiExercise 8K shSep 24, 2026

Checking access…

View all insider trades View all activist filings

Checking access…

	Action
FMR LLC	Increased	794,720(+0.2%)	$12.7M	0.0%	+58.94%	28
VIKING GLOBAL INVESTORS LP	Unchanged	524,347	$8.4M	0.0%	+89.74%	0
TGTPG GP A, LLC	Unchanged	378,551	$6.1M	0.1%	—	0
RENAISSANCE TECHNOLOGIES LLC	Increased	199,907(+27.7%)	$3.2M	0.0%	+43.63%	33
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	172,497(+54.0%)	$2.8M	0.0%	+48.86%	37
CITADEL ADVISORS LLC	Increased	72,200(+263.1%)	$1.2M	0.0%	+21.02%	41
Mariner, LLC	Unchanged	50,566	$809,056	0.0%	+89.74%	0
JANE STREET GROUP, LLC	New	47,423	$758,768	0.0%	+6.38%	34
GEODE CAPITAL MANAGEMENT, LLC	Decreased	32,047(-9.5%)	$512,865	0.0%	+89.74%	0
BlackRock, Inc.	Increased	30,332(+73.5%)	$485,312	0.0%	+42.46%	25
HRT FINANCIAL LP	New	25,657	$410,000	0.0%	+6.38%	33
XTX Topco Ltd	Increased	21,497(+91.5%)	$343,952	0.0%	+38.05%	37
VFVANGUARD FIDUCIARY TRUST CO	Increased	16,820(+24.2%)	$269,120	0.0%	+45.08%	28
TWO SIGMA INVESTMENTS, LP	New	16,619	$265,904	0.0%	+6.38%	32
STATE STREET CORP	New	12,996	$207,936	0.0%	+6.38%	35
Quadrature Capital Ltd	New	12,995	$207,920	0.0%	+6.38%	32
DIMENSIONAL FUND ADVISORS LP	Unchanged	11,280	$180,480	0.0%	+59.07%	0
VGVanguard Global Advisers, LLC	Unchanged	1,442	$23,072	0.0%	+89.74%	0
UBS Group AG	Decreased	146(-98.2%)	$2,336	0.0%	+89.74%	0
MORGAN STANLEY	Decreased	125(-0.8%)	$2,000	0.0%	+59.07%	0

Showing 1-20 of 27

Per page:

1 / 2

RLYBRALLYBIO CORP

Continue exploring

Smart money flow

Track where institutional capital is flowing

Discover new institutional entries

Fresh positions initiated this quarter

Check sector trends

Capital flows across GICS sectors

Other Healthcare stocks held by institutions

UNHUNITEDHEALTH GROUP INC

417 holders · $300.5B

LLYELI LILLY AND COMPANY

416 holders · $881.6B

TMOTHERMO FISHER SCIENTIFIC INC

401 holders · $151.5B

JNJJOHNSON & JOHNSON

398 holders · $415.6B

DHRDANAHER CORP

395 holders · $98.9B

ISRGINTUITIVE SURGICAL INC

394 holders · $111.8B

MRKMERCK & COMPANY

391 holders · $230.3B

ABBVABBVIE INC COM

386 holders · $303.9B

BSXBOSTON SCIENTIFIC CORP

386 holders · $52.4B

ABTABBOTT LABS

383 holders · $114.2B

High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

RALLYBIO CORP

Smart Money Verdict

Who's Trading

Top Holders

Continue exploring

Other Healthcare stocks held by institutions