Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Atrium Therapeutics, Inc.RNA · Entity 6185 | Chief Financial Officer | September 18, 2026 | September 22, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Atrium Therapeutics, Inc.
Report date September 18, 2026 · Filed September 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 36,859 |
Reported balance
After 2026-09-18 transaction · row 1
1 source rowRow 1 · 2026-09-18 · Tax withholding · Disposed 6,742 · Balance 36,859 F1: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 18, 2026 Filed Sep 22, 2026 20:17 UTC | Atrium Therapeutics, Inc. RNA · Entity 6185 | Tax withholdingCommon Stock | 6,742 | $8.95 | $60,340.90 |
DisclosureSEC source: 0001193125-26-397941 · ownership.xml · nonDerivative · entry 1 Winslow Brendan R. · CIK 0002105552 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 36,859 F1 · kind: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. Read SEC document |
| April 20, 2026 Filed Apr 22, 2026 21:53 UTC | Atrium Therapeutics, Inc. RNA · Entity 6185 | GrantStock Option (Right to Buy) · Derivative | 60,000 | $0.00 Strike: $14.30 | $0.00 |
DisclosureSEC source: 0001193125-26-170960 · ownership.xml · derivative · entry 2 Winslow Brendan R. · CIK 0002105552 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 60,000 Underlying: Common Stock · 60,000 shares Expires 2036-04-20 F2 · derivative.exercise_date: Twenty-five percent (25%) of the shares underlying this option shall vest and become exercisable on March 20, 2027, with the remaining shares vesting in thirty-six (36) substantially equal monthly installments each month thereafter, subject to the Reporting Person's continuous service to the Issuer on each such vesting date. Read SEC document |
| April 20, 2026 Filed Apr 22, 2026 21:53 UTC | Atrium Therapeutics, Inc. RNA · Entity 6185 | GrantCommon Stock | 30,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-26-170960 · ownership.xml · nonDerivative · entry 1 Winslow Brendan R. · CIK 0002105552 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 43,601 F1 · shares: Represents an award of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. Twenty-five percent (25%) of the RSUs shall vest on March 20, 2027, with the remaining RSUs vesting in three (3) substantially equal yearly installments each year thereafter, subject to the Reporting Person's continuous service to the Issuer on each such vesting date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.