$MYGN

BlackRock arm now owns more than a tenth of Myriad Genetics (NASDAQ: MYGN)

BlackRock Portfolio Management LLC now owns 10.4% of Myriad Genetics' (MYGN) common stock, with sole voting power over 8,751,792 shares and sole dispositive power over 9,900,937 shares. No single client holds more than 5% of MYGN's outstanding shares.

Original reporting
Published Sep 4, 2026, 4:58 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 5, 2026, 3:01 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefCorporate actions
Primary signal
$MYGN
Neutral
medium confidence
Mentioned
$MYGN
Relevance
6/10
AlphAI data visualization · based on stocktitan.net
Decision brief

The 30-second read

$MYGNNeutralLow
01

Why it matters

The filing provides the first public confirmation of BlackRock's sizable position in Myriad Genetics, a data point for ownership concentration analysis.

02

Market read

New ownership disclosure may affect voting dynamics and could be a catalyst for modest price movement.

03

What to watch

Potential future activist moves or proxy battles if BlackRock decides to influence strategy.

Relevance 6/10Novelty 8/10Timing: filing date Sep 4 2026

Background

Schedule 13G filings disclose passive institutional ownership exceeding 5% of a company's shares.

Company-level read

Ticker impact

$MYGNNeutralMedium confidence
Context

BlackRock Portfolio Management LLC disclosed beneficial ownership of 10.4% of Myriad Genetics common stock, a new 13G filing.

Expected impact

Modest upside pressure as the market digests a large institutional holder.

Evidence & confidence

A 10% stake is material but does not immediately trigger a corporate action; impact depends on future board or strategic moves.

Market effects

May signal confidence in the genomics/diagnostics sector, could lift peer sentiment.

U.S. biotech market may see slight positive bias.

Limited; primarily affects U.S. listed biotech investors.

Counterpoint

The stake could be passive; BlackRock may not intervene, limiting upside.

Key entities

  • BlackRock Portfolio Management LLC

    BlackRock's investment vehicle reporting the 13G filing.

  • Myriad Genetics Inc

    NASDAQ-listed genetic testing company (ticker MYGN).

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United Therapeutics (UTHR) stock rose 4.3% post-earnings, trading at $214.36. Myriad Genetics (MYGN) reported $190.7M revenue, down 10.5% YoY, missing estimates, and guidance fell short, causing a 40.9% stock drop to $3.18. Gilead Sciences (GILD) reported $7.8B revenue, up 10.2% YoY, beating estimates, with stock up 8.1% to $146.16. Novavax (NVAX) reported $56.7M revenue, down 76.3% YoY, but beat estimates, with stock up 32.2% to $10.18.

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Why Myriad Genetics (MYGN) Stock Is Down Today

Myriad Genetics (MYGN) shares fell 6.2% after Piper Sandler downgraded the stock to Underweight, citing the need for major strategic action. The stock later recovered slightly to $3.10, down 3.9% from the previous close. MYGN is down 49.6% YTD and 62.2% below its 52-week high.

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Why is Myriad Genetics stock tumbling today?

Myriad Genetics (MYGN) shares fell 7.1% premarket after Piper Sandler downgraded the stock to Underweight, cutting its price target to $2.00 from $5.45. The firm cited concerns over the company's profitability and weak Q2 2026 results, including a 10.5% year-over-year revenue decline. The broader market also declined, with the NASDAQ down 0.9%.