$RGNX

PAKOLA STEVE sold $689K of RGNX

PAKOLA STEVE (Chief Medical Officer) sold 56,333 shares of REGENXBIO Inc. (RGNX) at an average of $12.23 ($11.04–$12.86, $0.69M total) across 2 trades over 2026-06-29 to 2026-07-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · PAKOLA STEVE
Published Jul 2, 2026, 12:08 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jul 2, 2026, 12:36 PM 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 briefInsider activity
Primary signal
$RGNX
Neutral
medium confidence
Mentioned
$RGNX
Relevance
4/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$RGNXNeutralLow
01

Why it matters

The disclosure provides a concrete datapoint on insider selling activity, but it does not include new clinical, regulatory, or financial guidance information.

02

Market read

Traders may monitor for follow-on insider activity, but the 10b5-1 context reduces the signal strength.

03

What to watch

Insider sales can be misread; traders should check whether the plan size/pace is typical versus unusual, and whether any other contemporaneous filings (buys, grants, guidance) exist.

Relevance 4/10Novelty 4/10Timing: New SEC Form 4 filed July 1, covering sales from June 29–July 1.

Background

The article is an SEC Form 4 insider transaction disclosure for Regenxbio (RGNX).

Company-level read

Ticker impact

$RGNXNeutralMedium confidence
Context

Regenxbio insider Chief Medical Officer Pakola Steve sold $688,755 of RGNX stock via a 10b5-1 plan (Form 4).

Expected impact

Low likelihood of a sustained price move; any reaction is likely muted and short-lived.

Evidence & confidence

The filing is a routine open-market sale under a pre-arranged 10b5-1 plan, with no accompanying operational or guidance change disclosed.

Market effects

Minimal; single-company insider transaction without sector-wide signal.

None indicated.

None indicated.

Counterpoint

Because the sale is under a 10b5-1 plan, it may reflect scheduled liquidity rather than bearish expectations.

Key entities

  • REGENXBIO Inc.

    Issuer of the insider transaction disclosed on SEC Form 4.

  • PAKOLA STEVE

    Chief Medical Officer who executed open-market sales under a pre-arranged 10b5-1 plan.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$XMTRMedAI 8/10

Six Montgomery County companies attract more than $566 million in capital investment – WTOP News

Six Montgomery County companies raised over $566 million in Q3. Forbright (Nasdaq) completed an IPO, raising $142.2 million. Xometry (Nasdaq) announced a $225 million secondary offering. RegenxBio (Nasdaq) raised $90.04 million in a public offering. Georgiamune secured $92.69 million in venture funding. Arculus Solutions raised $1.95 million in Seed-1 funding. Jesse & Ben raised $15 million in Series A funding.

$RGNXHighAI 8/10

Regenxbio’s Gene Therapy Faces Another FDA Setback in Hunter Syndrome

Regenxbio Inc. (RGNX) faced an FDA clinical hold for RGX-121, its gene therapy for Hunter syndrome, due to spinal abnormalities in five patients. Shares fell over 24% premarket. The abnormalities were deemed non-serious and likely benign, with patients asymptomatic. The FDA's full clinical-hold letter and additional data are awaited to determine next steps.

$RGNXMed

REGENXBIO Faces FDA Clinical Hold on Hunter Syndrome Gene Therapy

REGENXBIO (RGNX) faces an FDA clinical hold on its Hunter Syndrome gene therapy (RGX-121) due to asymptomatic spinal MRI findings in five participants. The company is evaluating additional data with partner NS Pharma. Other late-stage programs, including RGX-202 for Duchenne muscular dystrophy and surabgene lomparvovec for wet AMD, remain on track. The Hunter Syndrome treatment market is projected to grow to $1.8B by 2030, according to Grandview Research.

$RGNXHighAI 8/10

Regenxbio (RGNX) Stock Plummets 25% as FDA Halts Gene Therapy Trial

Regenxbio's stock fell 25% to $8.05 after the FDA placed a clinical hold on its gene therapy candidate RGX-121 due to spinal nodules in five trial participants. The company halted near-term BLA resubmission plans for RGX-121 but will file a BLA for its Duchenne treatment this quarter and expects wet AMD trial results in Q4. According to the company, the nodules are likely benign, but the FDA required further review.

$RGNXHighAI 8/10

REGENXBIO Announces Regulatory Update on RGX-121 for MPS II

REGENXBIO (RGNX) announced an FDA clinical hold on RGX-121, its gene therapy for MPS II, due to asymptomatic spine MRI findings in five participants. The company does not expect to resubmit the BLA soon and will focus on other candidates. Investigators consider the findings likely benign and will continue monitoring. REGENXBIO plans to evaluate additional data and FDA feedback for next steps. MPS II is a rare genetic disorder affecting approximately 2,000 patients worldwide.

$RGNXHighAI 8/10

Why is Regenxbio stock plunging today?

Regenxbio (RGNX) stock fell 24.3% to $8.12 after the FDA placed a clinical hold on its RGX-121 gene therapy due to safety concerns. The company delayed resubmitting the therapy's Biologics License Application. Analysts had recently downgraded the stock. The broader market showed minor declines, and peers were unaffected.