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Atrium Therapeutics, Inc.

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Atrium Therapeutics, Inc.

RNA·NASDAQ·Life Sciences·CIK 0002093101

Atrium Therapeutics, Inc. is a biopharmaceutical company that develops RNA-based therapies specifically for heart conditions, aiming to change how cardiomyopathies are treated. The company's current product candidates in development include ATR 1072, which is a siRNA-based therapy designed to target PRKAG2 for the treatment of PRKAG2 syndrome. Another candidate is ATR 1086, also a siRNA-based therapy, which targets PLN for the treatment of PLN cardiomyopathy. Atrium Therapeutics also has a broader pipeline focused on treating various genetic and cardiac diseases. The company was incorporated in 2025 and operates from its headquarters in San Diego, California.

Atrium Therapeutics, Inc. (NASDAQ:RNA) is a publicly traded company in the Life Sciences sector. Wiseek has independently scored 17 items for RNA at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-07-14, rated 8/10. Across its 17 most recent items scored 7 or higher, the top rating is 10/10, with 15 rated 8 or above. Recent SEC coverage for RNA spans 8-K, 10-Q, 10-K, DEFA14A.

Recent high-impact activity:

  • FDA Clears Atrium's IND for ATR 1072, Phase 1/2 Trial to Start
  • FDA Clears Atrium Therapeutics to Launch First Clinical Trial for Rare Heart Disease
  • Atrium Therapeutics Reports Strong Q1 Cash Position of $267.8M, $19.6M Collaboration Revenue Post-Spin-Off
  • Atrium Therapeutics Reports First Q1 Results as Independent Company with Strong Cash Position and $15M Milestone
  • Atrium Therapeutics Reports Strong Q1 with $15M BMS Milestone and $268M Cash

Short Interest & Short Volume

8.15 days to cover

FINRA reported short interest of 3,397,791 shares in RNA as of the September 15, 2026 settlement, a 1.4% increase from the prior period — about 8.2 days to cover at its recent average daily volume. On October 2, 2026, 40.1% of RNA volume reported to FINRA trade-reporting facilities was marked short.

Short interest (bi-monthly positions)3,397,791 shares as of September 15, 2026
Change vs prior period▲ 1.4%
Days to cover8.15 at avg daily volume of 417,130
Daily short volume (FINRA facilities)40.1% of 226,744 shares on October 2, 2026
5-day average short volume35.8%

Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.

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$7.84
52-week range · as of 2026-07-14 $7.84 – $16.77
Market cap
$134.11M
Volume
533.8K (1.5× avg)
3-mo avg 357.2K
Live data · 2026-10-05 04:25 UTC · Market overnight

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feed RNA - Latest Insights

RNA
Jul 14, 2026, 5:23 PM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $12.22
Real-time Price: $7.84 info
Change: -$4.38 (-36%) info
Market Cap: $134.108M info
RNA
Jul 14, 2026, 5:14 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $12.22
Real-time Price: $7.84 info
Change: -$4.38 (-36%) info
Market Cap: $134.108M info
RNA
May 14, 2026, 4:53 PM EDT
Source: Wiseek News
Importance Score:
8
Price at Filing: $13.27
Real-time Price: $7.84 info
Change: -$5.43 (-41%) info
Market Cap: $134.108M info
RNA
May 14, 2026, 4:51 PM EDT
Filing Type: 10-Q
Importance Score:
8
Price at Filing: $13.27
Real-time Price: $7.84 info
Change: -$5.43 (-41%) info
Market Cap: $134.108M info
RNA
May 14, 2026, 4:50 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $13.27
Real-time Price: $7.84 info
Change: -$5.43 (-41%) info
Market Cap: $134.108M info
RNA
Feb 27, 2026, 9:13 AM EST
Filing Type: 8-K
Importance Score:
10
Price at Filing: $15.30
Real-time Price: $7.84 info
Change: -$7.46 (-49%) info
Market Cap: $134.108M info
RNA
Feb 27, 2026, 9:03 AM EST
Source: Reuters
Importance Score:
9
Price at Filing: $15.24
Real-time Price: $7.84 info
Change: -$7.40 (-49%) info
Market Cap: $134.108M info
RNA
Feb 26, 2026, 4:58 PM EST
Filing Type: 8-K
Importance Score:
9
Price at Filing: $72.77
Real-time Price: $7.84 info
Change: -$64.93 (-89%) info
Market Cap: $134.108M info
RNA
Feb 23, 2026, 4:04 PM EST
Filing Type: 10-K
Importance Score:
9
Price at Filing: $72.92
Real-time Price: $7.84 info
Change: -$65.08 (-89%) info
Market Cap: $134.108M info
RNA
Feb 23, 2026, 8:30 AM EST
Filing Type: 8-K
Importance Score:
8
Price at Filing: $72.86
Real-time Price: $7.84 info
Change: -$65.02 (-89%) info
Market Cap: $134.108M info
RNA
Feb 18, 2026, 8:51 AM EST
Filing Type: DEFA14A
Importance Score:
8
Price at Filing: $72.93
Real-time Price: $7.84 info
Change: -$65.09 (-89%) info
Market Cap: $134.108M info
RNA
Feb 13, 2026, 4:15 PM EST
Filing Type: DEFA14A
Importance Score:
7
Price at Filing: $72.70
Real-time Price: $7.84 info
Change: -$64.86 (-89%) info
Market Cap: $134.108M info
RNA
Feb 03, 2026, 7:00 AM EST
Filing Type: DEFA14A
Importance Score:
7
Price at Filing: $72.74
Real-time Price: $7.84 info
Change: -$64.90 (-89%) info
Market Cap: $134.108M info
RNA
Jan 30, 2026, 4:37 PM EST
Filing Type: DEFM14A
Importance Score:
9
Price at Filing: $72.57
Real-time Price: $7.84 info
Change: -$64.73 (-89%) info
Market Cap: $134.108M info
RNA
Jan 14, 2026, 4:01 PM EST
Filing Type: DFAN14A
Importance Score:
10
Price at Filing: $72.54
Real-time Price: $7.84 info
Change: -$64.70 (-89%) info
Market Cap: $134.108M info
RNA
Jan 12, 2026, 4:35 PM EST
Filing Type: DFAN14A
Importance Score:
9
Price at Filing: $72.35
Real-time Price: $7.84 info
Change: -$64.51 (-89%) info
Market Cap: $134.108M info
RNA
Jan 12, 2026, 4:30 PM EST
Filing Type: DEFA14A
Importance Score:
9
Price at Filing: $72.35
Real-time Price: $7.84 info
Change: -$64.51 (-89%) info
Market Cap: $134.108M info
Research tools: Filing Impact Index Dilution Tracker Split Calendar Open Datasets