Latest filingSep 02, 2026Most recent Form 4
IRM
IRON MOUNTAIN INC
NYSEFinancialsReal Estate Investment Trusts
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$566M6 sells
Net open-market-$566M3 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period8transactions
- S · Open-market sells · dominant6 · 75%
- M · Option exercise2 · 25%
Activity by reported role
A joint filing can contribute to multiple roles11transactions
- PRES · dominant6 · 55%
- EVP2 · 18%
- ALM1 · 9%
- CCO1 · 9%
- GDC1 · 9%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeMeaney William LCommon Stock, par value $.01 per share · Direct
89Sep 01, 2026
Kidd MarkCommon Stock, par value $.01 per share · Direct
95,507Sep 01, 2026
McIntosh Greg WCommon Stock, par value $.01 per share · Direct
75,634Sep 01, 2026
Meaney William LEmployee Stock Option (Right to Buy) · Direct
115,422Sep 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- ML-$4.4M
- KM-$693.6k
- MW-$578.0k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
IRM transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| IRM | Meaney William L | PRES | sale10b5-1 | 89 | -$1.03M | S | — | 0.0% | 09/02 | 09/01 |
| IRM | Meaney William L | PRES | sale10b5-1 | 6.10k | -$70.1M | S | — | 0.0% | 09/02 | 09/01 |
| IRM | Meaney William L | PRES | sale10b5-1 | 20.9k | -$239M | S | — | 0.0% | 09/02 | 09/01 |
| IRM | Meaney William L | PRES | sale10b5-1 | 11.3k | -$128M | S | — | 0.0% | 09/02 | 09/01 |
| IRM | McIntosh Greg W | EVPCCO | sale10b5-1 | 5.00k | -$57.8M | S | — | 0.0% | 09/02 | 09/01 |
| IRM | Kidd Mark | EVPGDCALM | sale10b5-1 | 6.00k | -$69.3M | S | — | 0.0% | 09/02 | 09/01 |
IRON MOUNTAIN INC Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at IRON MOUNTAIN INC?
Meaney William L, McIntosh Greg W, Kidd Mark.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Meaney William L reported a sale on Sep 01, 2026 valued at $1.03M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $5,660,615.68. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.