Atrium Therapeutics, Inc.

Atrium Therapeutics, Inc.

RNA·NASDAQ

$12.17

-1.3%
HealthcareBiotechnology

Avidity Biosciences, Inc., a biopharmaceutical company, engages in the development of oligonucleotide-based therapies. It develops antibody oligonucleotide conjugates (AOC) that are designed to treat a range of serious diseases. The company's lead product candidate AOC 1001 is used for the treatment of myotonic dystrophy type 1, a rare monogenic muscle disease; AOC 1044 for the treatment of Duchenne Muscular Dystrophy; and AOC 1020 designed to treat facioscapulohumeral muscular dystrophy which are in preclinical stage. It also offers Lumizyme therapy for Pompe diseases. Avidity Biosciences, Inc. was incorporated in 2012 and is headquartered in San Diego, California.

At a Glance

Live Snapshot
Market Cap$208.18M
EPS-4.4800
P/E Ratio-2.72
Earnings Date09/02/2026
-31.92%
Return on Invested Capital
24%
3Y+5.0%
5Y+130.0%
10Y-94.0%
-36.99%
Return on Equity
64%
3Y+23.0%
5Y+155.0%
10Y-227.0%
-27.55%
Return on Assets
34%
3Y+1.0%
5Y+107.0%
10Y-91.0%
Atrium Therapeutics, Inc.

Atrium Therapeutics, Inc. Management Team

RNA · NASDAQ
ME

Mr. Eric B. Mosbrooker

Chief Commercial Officer

Compensation

$45,000

Born 1967(Age 59)
male
MM

Mr. Michael F. MacLean CPA

Chief Financial Officer

Compensation

$839,110

Born 1966(Age 60)
male
MT

Ms. Teresa McCarthy

Chief Human Resources Officer

Compensation

$782,410

Born 1964(Age 62)
female
MJ

Mr. John B. Moriarty Jr., ESQ., J.D.

Chief Legal Officer & Corporate Secretary

Compensation

$683,588

Born 1968(Age 58)
male
DS

Dr. Steven George Hughes M.B.A., M.D.

Chief Medical Officer

Born 1967(Age 59)
MK

Ms. Kathleen P. Gallagher

Chief Program Officer

Born 1981(Age 45)
female
DW

Dr. W. Michael F. Flanagan Ph.D.

Chief Scientific Officer

Compensation

$855,110

Born 1962(Age 64)
MC

Mr. Charles Calderaro III

Chief Technical Officer

Born 1964(Age 62)
male
DT

Dr. Troy Edward Wilson J.D., Ph.D.

Co-Founder & Independent Chairman

Compensation

$71,908

Born 1969(Age 57)
MS

Ms. Sarah Boyce

President, Chief Executive Officer & Director

Compensation

$1,270,910

Born 1972(Age 54)
female
DF

Dr. Frank P. McCormick Ph.D.

Scientific Founder & Member of Scientific Advisory Board

Born 1950(Age 76)
PM

Prof. Mark E. Davis Ph.D.

Scientific Founder, Member of Scientific Advisory Board and Member of Board of Managers

rna

Atrium Therapeutics, Inc. Insider Positioning

RNA · NASDAQ

During the last 12 months, insiders have sold $19.97M worth of RNA shares, with no buying activity reported.

3 Months

Bought

0

0.00

Sold

0

0.00

Net Activity

+0

+$0

3-6 Months

Bought

0

0.00

Sold

25.4K

1.83M

Net Activity

-1.8M

-$1.83M

6-9 Months

Bought

0

0.00

Sold

67.5K

2.97M

Net Activity

-3.0M

-$2.97M

9-12 Months

Bought

0

0.00

Sold

330.0K

15.17M

Net Activity

-15.2M

-$15.17M

Top Buyers

No buying activity

Top Sellers

1
LAA

Levin Arthur A

Director

107.5K shares1 transactions

$5.12M

2
BS

Boyce Sarah

Director, Officer: President And Ceo

83.6K shares3 transactions

$4.35M

3
MT

Mccarthy Teresa

Officer: Chief Human Resources Officer

47.0K shares4 transactions

$2.23M

4
HSG

Hughes Steven George

Officer: Chief Medical Officer

48.1K shares8 transactions

$2.21M

5
FWM

Flanagan W. Michael

Officer: Chief Scientific Officer

42.4K shares3 transactions

$1.61M

Insider Activity Analysis

Net Insider Sentiment

Bearish

Strong bearish signal with $19.97M net selling. Heavy insider selling may indicate concerns about valuation or near-term prospects.

Buy/Sell Ratio

0.00:1

Very poor ratio. Heavy selling with minimal buying suggests insiders may be concerned about valuation or outlook.

Insider Participation

High Selling

5 insider sellers vs. 0 buyers. Widespread selling across multiple insiders may signal concerns.

SEC Filings

RNA - Filing history and reports

Filing TypeFiling DatePeriod EndingFiscal YearActions
DEF 14A

DEF 14A 2025

N/A

April 29, 2025
April 29, 2025
2025
DEF 14A

DEF 14A 2024

N/A

April 26, 2024
April 26, 2024
2024
DEF 14A

DEF 14A

N/A

April 28, 2023
April 28, 2023
 
DEF 14A

DEF 14A 2022

N/A

April 29, 2022
June 15, 2022
2022
DEF 14A

DEF 14A 2021

N/A

April 29, 2021
June 16, 2021
2021
Showing 1 to 5 of 5 filings