RayzeBio, Inc. Common Stock

RYZBNASDAQHealthcare

$62.49

+$0.01(+0.02%)

Market Cap$3.8B

P/E Ratio—

52W High$62.51

52W Low$17.95

Avg Volume762K

Open$62.49

Beta3.79

Overview

RayzeBio, Inc. Common Stock (RYZB) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · RYZB · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

0.00

Buy/Sell (by trades)

Overall sentiment

NEUTRAL

↑ Buy 0%Active transactions only · RSU vesting excluded100% Sell ↓

RayzeBio, Inc. Common Stock insiders have shown mixed buying and selling activity over the past 12 Months.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 9, 2026

RYZB insider buying and selling by quarter

RYZB insider selling · RYZB insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

12.3M6.1M0

2023 Q3

2024 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 9, 2026

Recent insider transactions

RYZB executive sell shares · RYZB board member insider trading · RYZB insider trading SEC filing

Showing 7 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Feb 26, 2024	VIKING GLOBAL INVESTORS LP 10 percent owner	Other	1,743,556	$62.50	$108.97M⚡	0	Form 4
Sep 19, 2023	Redmile Group, LLC 10 percent owner	Other	498,510	—	—	1,857,706	Form 4
Sep 19, 2023	Redmile Group, LLC 10 percent owner	Other	494,687	—	—	1,359,196	Form 4
Sep 19, 2023	Redmile Group, LLC 10 percent owner	Other	864,509	—	—	864,509	Form 4
Sep 19, 2023	venBio Global Strategic Fund III, L.P. 10 percent owner	Other	247,343	—	—	5,158,162	Form 4
Sep 19, 2023	venBio Global Strategic Fund III, L.P. 10 percent owner	Other	1,123,862	—	—	4,910,819	Form 4
Sep 19, 2023	venBio Global Strategic Fund III, L.P. 10 percent owner	Other	3,786,957	—	—	3,786,957	Form 4

VIKING GLOBAL INVESTORS LP

10 percent owner

Other

Date

Feb 26

1,743,556

Price

$62.50

Value

$108.97M ⚡

View Form 4 on SEC.gov

Redmile Group, LLC

10 percent owner

Other

Date

Sep 19

498,510

Price

—

Value

—

View Form 4 on SEC.gov

Redmile Group, LLC

10 percent owner

Other

Date

Sep 19

494,687

Price

—

Value

—

View Form 4 on SEC.gov

Redmile Group, LLC

10 percent owner

Other

Date

Sep 19

864,509

Price

—

Value

—

View Form 4 on SEC.gov

venBio Global Strategic Fund III, L.P.

10 percent owner

Other

Date

Sep 19

247,343

Price

—

Value

—

View Form 4 on SEC.gov

venBio Global Strategic Fund III, L.P.

10 percent owner

Other

Date

Sep 19

1,123,862

Price

—

Value

—

View Form 4 on SEC.gov

venBio Global Strategic Fund III, L.P.

10 percent owner

Other

Date

Sep 19

3,786,957

Price

—

Value

—

View Form 4 on SEC.gov

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About RYZB insider trading

RYZB insider trades

RayzeBio, Inc. Common Stock (RYZB) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including RYZB. Over the past 12 months, 0 insiders have filed transactions with the SEC. RYZB insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For RayzeBio, Inc. Common Stock's institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

RYZB insider trading · 5 questions

The insiders of RayzeBio, Inc. Common Stock (RYZB) include executives and directors such as RYZB, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

RYZB board member insider tradingwho are RYZB insidersRYZB insider rosterRayzeBio, Inc. Common Stock executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026