Kidd Mark sold $736K of IRM

Kidd Mark (EVP, GM Data Centers & ALM) sold 6,000 shares of IRON MOUNTAIN INC (IRM) at $122.70 ($0.74M total) on 2026-08-07 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Kidd Mark
Published Aug 10, 2026, 8:08 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 10, 2026, 8:12 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
$IRM
Neutral
high confidence
Mentioned
$IRM
Relevance
4/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$IRMNeutralLow
01

Why it matters

The only new information is the specific sale size, price, and post-transaction holdings; it does not include guidance, litigation, deals, or operating updates.

02

Market read

Traders may note insider-selling optics, but 10b5-1 labeling typically reduces interpretive weight.

03

What to watch

The filing does not reveal whether other insiders or the company itself are buying, and it provides no rationale beyond the pre-arranged plan.

Relevance 4/10Novelty 3/10Timing: Filed 2026-08-10 after-hours, reflecting a sale executed 2026-08-07.

Background

The article is a SEC Form 4 insider transaction disclosure for Iron Mountain Inc.

Company-level read

Ticker impact

$IRMNeutralHigh confidence
Context

Iron Mountain Form 4 shows EVP Kidd Mark sold 6,000 shares on 2026-08-07 at $122.70, totaling $736,200 under a 10b5-1 plan.

Expected impact

Low likelihood of a sustained price move from this filing alone; any reaction is likely muted.

Evidence & confidence

The disclosure is an open-market sale by an officer, explicitly tied to a pre-arranged 10b5-1 plan, and provides no new company-specific operational or financial information.

Market effects

Minimal, as the filing does not change data-center REIT or storage-sector fundamentals.

None indicated.

None indicated.

Counterpoint

Even with a 10b5-1 plan, repeated insider selling can coincide with internal expectations of near-term risk, so traders may still watch for follow-on disclosures.

Key entities

  • IRON MOUNTAIN INC

    Subject of the Form 4 insider transaction disclosure.

  • Kidd Mark

    EVP, GM Data Centers & ALM who sold shares under a 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

$IRMHighAI 8/10

Iron Mountain Inc (IRM) (Q3 2026) Earnings Call Highlights: Record Revenue, Raised Guidance

Iron Mountain Inc (IRM) reported Q3 2026 revenue growth of 13%, adjusted EBITDA up 13%, and AFFO up 17%, exceeding expectations. The data center business grew 34%, with record leasing and increased backlog. The company raised full-year guidance, targeting $7.95-$8.02B in revenue and $5.94-$6.00 in AFFO per share. IRM also increased its quarterly dividend by 15%. Challenges include FX headwinds and regulatory risks in certain states.

$IRMHighAI 8/10

Iron Mountain (IRM) Q3 2026 Earnings Call Transcript

Iron Mountain (IRM) reported Q3 2026 earnings with revenue of $1.99B, up 13% YoY. Adjusted EBITDA margin expanded to 37.6%, and AFFO per share reached $1.53. The company raised its full-year outlook, citing growth in data center, digital solutions, and ALM businesses. IRM won significant contracts, including a $25M federal records deal and a 10-year Fortune 100 contract. The board approved a 15% dividend increase. IRM expects growth businesses to contribute over 1/3 of total revenue in 2026.

$IRMMedAI 8/10

Iron Mountain Incorporated Q3 2026 Earnings Call Summary

Iron Mountain Incorporated reported Q3 2026 earnings, with growth driven by Data Center, ALM, and Digital segments. Revenue backlog reached $575M, and adjusted EBITDA margin was 37.6%. The company raised full-year 2026 guidance to $7.95B-$8.02B. The board approved a 15% dividend increase to $0.993 per share. Management plans to realign segment reporting by February 2027.