AI summary pending
View Full Filing (SEC EDGAR)Iron Mountain Inc
$114.60-0.4%
+$6.8B
Net Activity
+24.38% total shares
Institutions Holding
1179
Popularity Rank
#368
Avg Weight
0.15%
Total Value
$33.8B
Market Cap
$34.1B
1179 institutions currently hold IRM, with 605 net buyers and 462 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
462
Net Buying Institutions
605
Top 5 by Value
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Across its top 20 institutional holders, IRM's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 39/100).
IRM ranks #368 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
1179 institutions disclose a position in IRM, but none treat it as a major bet — even Contour Asset Management LLC, its most concentrated holder, allocates just 3.8% of its own portfolio to it.
IFM Investors Pty Ltd has added to its IRM position for two straight quarters, increasing it by $3.8M to reach $14.6M today.
TD Waterhouse Canada Inc. has trimmed its IRM position for two straight quarters, cutting it by $514.7K while still holding $555.1K.
IRM is down 0.4% today, but institutions show net buying of $6.8B this quarter — a divergence between today's price move and the underlying institutional flow.
IRM posted net income of $434.5M over the trailing twelve months, and currently trades at a P/E of 78.6.
+$3.9B
Total Buy Value
$1.9B
Total Sell Value
605
Net Buyers
462
Net Sellers
IRM
Q2 2026
Top 5 Institutional Movers
IRM does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
0
unique buyers
—
buy value
12-Month Buy/Sell Activity
| Action | Insider | Date | Value |
|---|---|---|---|
| Sell | Greg W Mcintosh | 2026-10-01 | $554K |
| Sell | William L Meaney | 2026-10-01 | $1.46M |
| Sell | William L Meaney | 2026-10-01 | $1.19M |
| Sell | William L Meaney | 2026-10-01 | $1.59M |
| Sell | Greg W Mcintosh | 2026-09-01 | $578K |
| Sell | Mark Kidd | 2026-09-01 | $694K |
| Sell | William L Meaney | 2026-09-01 | $1.29M |
| Sell | William L Meaney | 2026-09-01 | $2.39M |
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Sell (Full) | Markwayne Mullin Senate | 2026-02-04 | $1K–$15K |
| Sell (Full) | Markwayne Mullin Senate | 2025-12-18 | $15K–$50K |
| Sell (Full) | Markwayne Mullin Senate | 2025-12-18 | $1K–$15K |
| Buy | Markwayne Mullin Senate | 2025-02-03 | $1K–$15K |
| Buy | Markwayne Mullin Senate | 2025-01-02 | $15K–$50K |
| Buy | Markwayne Mullin Senate | 2025-01-02 | $15K–$50K |
8
Filings (90d)
$17.49M
Total Est. Value
149K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| McIntosh Greg W | 2026-10-01 | $554K |
| Meaney William L | 2026-10-01 | $4.26M |
| Meaney William L | 2026-09-01 | $4.45M |
| McIntosh Greg W | 2026-09-01 | $578K |
| Kidd Mark | 2026-09-01 | $694K |
| Kidd Mark | 2026-08-07 | $736K |
| Meaney William L | 2026-08-07 | $4.72M |
| McIntosh Greg W | 2026-08-06 | $1.51M |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)46284V101, 462846106
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Is Iron Mountain (IRM) Fully Priced Following Its November 5 Earnings Update?
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REST API
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