# Atrium Therapeutics, Inc.: overview

RNA · Nasdaq · CIK 2093101 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/rna.md) · [Financials](/companies/rna/financials.md) · [Filings](/companies/rna/filings.md) · [Insiders](/companies/rna/insiders.md)

Latest reported revenue: [$3.0m](/filings/0001193125-26-349488.md) for Q2 FY2026, three months to 2026-06-30, from the 10-Q filed Aug 13, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0001193125-26-349488).

## Last eight quarters

| Line item | Unit | period not labelled (2025-03-31) | period not labelled (2025-06-30) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) |
| --- | --- | ---: | ---: | ---: | ---: |
| Revenue | $m | [1.6](/filings/0001193125-26-224243.md) | [3.8](/filings/0001193125-26-349488.md) | [19.6](/filings/0001193125-26-224243.md) | [3.0](/filings/0001193125-26-349488.md) |
| Gross margin | % | not reported | not reported | not reported | not reported |
| Operating margin | % | [(473.7%)](/filings/0001193125-26-224243.md) | [(334.4%)](/filings/0001193125-26-349488.md) | [(88.0%)](/filings/0001193125-26-224243.md) | [(752.9%)](/filings/0001193125-26-349488.md) |
| Net margin | % | [(473.6%)](/filings/0001193125-26-349488.md) | [(334.8%)](/filings/0001193125-26-349488.md) | [(84.7%)](/filings/0001193125-26-349488.md) | [(672.0%)](/filings/0001193125-26-349488.md) |
| Diluted EPS | $ per share | [(0.44)](/filings/0001193125-26-224243.md) | [(0.75)](/filings/0001193125-26-349488.md) | [(0.97)](/filings/0001193125-26-224243.md) | [(1.18)](/filings/0001193125-26-349488.md) |
| Free cash flow | $m | [(11.1)](/filings/0001193125-26-224243.md) | [(12.2) d](/filings/0001193125-26-349488.md) | [(33.2)](/filings/0001193125-26-224243.md) | [(4.0) d](/filings/0001193125-26-349488.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 6-month figure less the 3-month figure.

## Last five fiscal years

Not reported.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/rna/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [Sessa Capital IM, L.P.](/funds/1595849.md) | 2026-06-30 | $20.2m | 1,500,000 |  | Added +948,609 |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $19.5m | 1,447,476 |  | Added +242,185 |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](/funds/1446194.md) | 2026-06-30 | $11.3m | 840,600 | Put | Reduced −178,200 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $9.8m | 730,831 |  | Added +103,962 |
| [CRCM LP](/funds/1483234.md) | 2026-06-30 | $8.6m | 641,539 |  | New +641,539 |
| [CRCM LP](/funds/1483234.md) | 2026-06-30 | $8.6m | 641,539 |  | New +641,539 |
| [TIG Advisors, LLC](/funds/1358253.md) | 2026-06-30 | $7.6m | 561,533 |  | Reduced −46,019 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $5.2m | 386,929 |  | Added +67,098 |
| [TWO SIGMA INVESTMENTS, LP](/funds/1179392.md) | 2026-06-30 | $4.6m | 345,481 |  | Added +166,921 |
| [GOLDMAN SACHS GROUP INC](/funds/886982.md) | 2026-06-30 | $4.2m | 310,341 |  | Reduced −39,609 |

## Recent filings

[All 51 filings](/companies/rna/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-09 | 06:17 ET | [8-K/A](/filings/0001193125-26-418417.md) | 8.01 Other events | 0001193125-26-418417 |
| 2026-10-08 | 06:52 ET | [8-K](/filings/0001193125-26-417402.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-417402 |
| 2026-08-13 | 16:51 ET | [10-Q](/filings/0001193125-26-349488.md) | Quarterly report, period 2026-06-30 | 0001193125-26-349488 |
| 2026-08-13 | 16:50 ET | [8-K](/filings/0001193125-26-349482.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-349482 |
| 2026-07-14 | 17:14 ET | [8-K](/filings/0001193125-26-303393.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-303393 |
| 2026-05-14 | 16:51 ET | [10-Q](/filings/0001193125-26-224243.md) | Quarterly report, period 2026-03-31 | 0001193125-26-224243 |
| 2026-05-14 | 16:50 ET | [8-K](/filings/0001193125-26-224238.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-224238 |
| 2026-02-27 | 17:22 ET | [8-K](/filings/0001193125-26-083227.md) | 1.01 Entry into a material agreement; 5.01 Change in control; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-26-083227 |
| 2026-02-26 | 16:50 ET | [8-K](/filings/0001193125-26-077105.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-077105 |

## Latest annual report

No annual report is in coverage.

## Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by \[object Promise\]. [Forecast this quarter](/leagues/2026q3/targets/a40f9b77-a28f-4b31-b390-225d16e1bc28)

## About the filer

- CIK: 2093101
- Tickers: RNA
- Exchange: Nasdaq
- SIC code: 2834 Pharmaceutical Preparations
- State of incorporation: DE
- Filer category: <br>Emerging growth company

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 27, 2026, 08:57 ET. No prices; not investment advice.
