LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
RNACIK 0001599901

Atrium Therapeutics, Inc.

67 transactions by 17 insiders, from October 15, 2025 to September 18, 2026.

Transactions
6717 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$5.3Mopen market
Net
−$5.3Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Steven George HughesCMO96/9—$631K
Sarah BoyceCEO83/8—$1.7M
Teresa McCarthyChief86/8—$1.4M
W. Michael FlanaganChief73/7—$645K
Kathleen P. GallagherOfficer6———
Husam YounisChief3———
Michael F. MacLeanCFO33/3—$472K
John B. MoriartyGC31/3—$171K
Eric MosbrookerChief3———
Charles Calderaro IIIChief31/3—$269K
Stephanie KenneyOfficer3———
Brendan R. WinslowCFO3———
Rocio Martin HoyosChief3———
Arthur A. LevinDir21/2—$127K
Troy Edward WilsonDir1———
Simona SkerjanecDir1———
Carsten BoessDir1———

All transactions

67 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Husam YounisChiefSep 18F11,216$8.95$100K
Steven George HughesCMOSep 18F21,459$8.95$192K
W. Michael FlanaganDirSep 18F22,812$8.95$204K
Sarah BoyceDirSep 18F126,418$8.95$1.1M
Stephanie KenneyOfficerSep 18F2,375$8.95$21K
Kathleen P. GallagherOfficerSep 18F11,632$8.95$104K
Brendan R. WinslowCFOSep 18F6,742$8.95$60K
Rocio Martin HoyosChiefSep 18F8,320$8.95$74K
Stephanie KenneyOfficerDERIVApr 20A60,000$0.00—?
Stephanie KenneyOfficerApr 20A30,000$0.00—
Steven George HughesCMODERIVApr 20A60,000$0.00—?
Steven George HughesCMOApr 20A30,000$0.00—
Brendan R. WinslowCFODERIVApr 20A60,000$0.00—?
Brendan R. WinslowCFOApr 20A30,000$0.00—
Kathleen P. GallagherOfficerDERIVApr 20A205,000$0.00—?
Kathleen P. GallagherOfficerApr 20A102,500$0.00—
Rocio Martin HoyosChiefDERIVApr 20A60,000$0.00—?
Rocio Martin HoyosChiefApr 20A30,000$0.00—
Husam YounisChiefDERIVApr 20A60,000$0.00—?
Husam YounisChiefApr 20A30,000$0.00—
Sarah BoyceDirDERIVFeb 27A20,000$0.00—?
Carsten BoessDirDERIVFeb 27A20,000$0.00—?
Troy Edward WilsonDirDERIVFeb 27A20,000$0.00—?
W. Michael FlanaganDirDERIVFeb 27A20,000$0.00—?
Simona SkerjanecDirDERIVFeb 27A20,000$0.00—?
Steven George HughesCMOJan 21SPLAN2,878$72.45$209K
Steven George HughesCMOJan 21SPLAN2,017$72.45$146K
Sarah BoyceCEOJan 21SPLAN7,993$72.45$579K
Sarah BoyceCEOJan 21SPLAN6,394$72.45$463K
W. Michael FlanaganChiefJan 21SPLAN2,558$72.45$185K
W. Michael FlanaganChiefJan 21SPLAN3,976$72.45$288K
Michael F. MacLeanCFOJan 21SPLAN2,735$72.45$198K
Michael F. MacLeanCFOJan 21SPLAN1,807$72.45$131K
Arthur A. LevinDirJan 21SPLAN1,758$72.45$127K
Teresa McCarthyChiefJan 21SPLAN1,453$72.45$105K
Teresa McCarthyChiefJan 21SPLAN1,476$72.45$107K
Sarah BoyceCEOJan 7SPLAN8,576$72.23$619K
Charles Calderaro IIIChiefJan 7SPLAN3,727$72.23$269K
Teresa McCarthyChiefJan 7SPLAN1,965$72.23$142K
John B. MoriartyGCJan 7SPLAN2,374$72.23$171K
Michael F. MacLeanCFOJan 7SPLAN1,974$72.23$143K
Steven George HughesCMOJan 7SPLAN2,373$72.23$171K
W. Michael FlanaganChiefJan 7SPLAN2,373$72.23$171K
Arthur A. LevinDirDec 19G1,330$0.00—
Charles Calderaro IIIChiefDec 17F9,726$71.87$699K
Charles Calderaro IIIChiefDec 17A23,250$0.00—
W. Michael FlanaganChiefDec 17F13,695$71.87$984K
W. Michael FlanaganChiefDec 17A27,500$0.00—
Eric MosbrookerChiefDec 17F11,426$71.87$821K
Eric MosbrookerChiefDec 17F36,564$71.87$2.6M
Eric MosbrookerChiefDec 17A72,000$0.00—
Sarah BoyceCEODec 18G29,159$0.00—
Sarah BoyceCEODec 17F15,742$71.87$1.1M
Sarah BoyceCEODec 17A31,000$0.00—
John B. MoriartyGCDec 17F26,824$71.87$1.9M
John B. MoriartyGCDec 17A56,000$0.00—
Kathleen P. GallagherChiefDec 17F8,030$71.87$577K
Kathleen P. GallagherChiefDec 17F33,336$71.87$2.4M
Kathleen P. GallagherChiefDec 17A72,000$0.00—
Teresa McCarthyChiefDec 17F17,298$71.87$1.2M
Teresa McCarthyChiefDec 17A39,000$0.00—
Steven George HughesCMODERIVOct 22MPLAN2,209$0.00—?
Steven George HughesCMOOct 22SPLAN2,209$47.54$105K
Steven George HughesCMOOct 22MPLAN2,209$10.16$22K
Teresa McCarthyChiefDERIVOct 15MPLAN20,000$0.00—?
Teresa McCarthyChiefOct 15SPLAN20,000$50.15$1.0M
Teresa McCarthyChiefOct 15MPLAN20,000$22.34$447K