Iron Mountain insider activity
What the executives and directors of Iron Mountain actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$120M
net open-market flow, 12 m
1 open-market buy, 12 m
99.4%
of sale value on 10b5-1 plans, 12 m
306 days since an insider bought, whole record
The tape: three years of insider trades
Open-market buy
Discretionary sale
Planned sale (10b5-1)
Reported-price path
Routine
Every marker sits at the price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the grey strip is the routine flow (grants, vestings, tax withholding and gifts) that a headline gets wrong by counting it as selling.
The 107 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Sep 1, 2026 | Meaney William L | 38K |
| Aug 7, 2026 | Meaney William L | 38K |
| Aug 6, 2026 | McIntosh Greg W | 6,839 |
| Jul 1, 2026 | Meaney William L | 38K |
| Jun 1, 2026 | Meaney William L | 38K |
| May 8, 2026 | Meaney William L | 38K |
| May 7, 2026 | DAUTEN KENT P | 1,892 |
| May 7, 2026 | FORD MONTE E | 1,892 |
| May 7, 2026 | Simons Doyle | 1,892 |
| May 7, 2026 | RAKOWICH WALTER C | 1,892 |
| May 7, 2026 | Kelly Christie B. | 1,892 |
| May 7, 2026 | Arway Pamela M | 1,892 |
| May 7, 2026 | Felix June Yee | 1,892 |
| May 7, 2026 | Allerton Jennifer | 2,025 |
| May 7, 2026 | Matlock Robin | 1,892 |
| May 1, 2026 | RAKOWICH WALTER C | 1,600 |
| Apr 1, 2026 | Meaney William L | 38K |
| Mar 2, 2026 | Meaney William L | 38K |
| Mar 1, 2026 | Meaney William L | 907K |
| Mar 1, 2026 | Hytinen Barry | 338K |
| Mar 1, 2026 | Borges Daniel | 15K |
| Mar 1, 2026 | Kidd Mark | 211K |
| Mar 1, 2026 | McIntosh Greg W | 179K |
| Mar 1, 2026 | Altamura Michelle Vervais | 3,950 |
| Mar 1, 2026 | Bhargava Mithu | 174K |
| Feb 20, 2026 | Meaney William L | 38K |
| Jan 21, 2026 | Matlock Robin | 10 |
| Jan 2, 2026 | Meaney William L | 38K |
| Jan 2, 2026 | Matlock Robin | 998 |
| Jan 2, 2026 | Altamura Michelle Vervais | 1,683 |
| Jan 2, 2026 | Johns Jemma | 2,853 |
| Dec 1, 2025 | Meaney William L | 69K |
| Nov 3, 2025 | Meaney William L | 69K |
| Oct 31, 2025 | Kidd Mark | 7,306 |
| Oct 21, 2025 | Kelly Christie B. | 1,275 |
| Oct 1, 2025 | Meaney William L | 69K |
| Sep 4, 2025 | RAKOWICH WALTER C | 11K |
| Sep 3, 2025 | Meaney William L | 69K |
| Aug 1, 2025 | Meaney William L | 69K |
| Jul 1, 2025 | BAILEY CLARK H | 91K |
| Jul 1, 2025 | Meaney William L | 69K |
| Jun 2, 2025 | Meaney William L | 69K |
| May 29, 2025 | DAUTEN KENT P | 2,249 |
| May 29, 2025 | FORD MONTE E | 2,249 |
| May 29, 2025 | RAKOWICH WALTER C | 2,249 |
| May 29, 2025 | Arway Pamela M | 2,249 |
| May 29, 2025 | Felix June Yee | 2,249 |
| May 29, 2025 | Allerton Jennifer | 2,452 |
| May 29, 2025 | Matlock Robin | 2,249 |
| May 22, 2025 | McIntosh Greg W | 6,744 |
| May 2, 2025 | Meaney William L | 69K |
| Apr 1, 2025 | Meaney William L | 69K |
| Mar 3, 2025 | Meaney William L | 69K |
| Mar 1, 2025 | Meaney William L | 783K |
| Mar 1, 2025 | Hytinen Barry | 239K |
| Mar 1, 2025 | Borges Daniel | 14K |
| Mar 1, 2025 | Kidd Mark | 81K |
| Mar 1, 2025 | McIntosh Greg W | 148K |
| Mar 1, 2025 | Altamura Michelle Vervais | 3,950 |
| Mar 1, 2025 | Bhargava Mithu | 3,586 |
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
The chart, in numbers
| Flow | Shares |
|---|---|
| Granted | 18K |
| Vested / exercised | 1.9M |
| Bought on market | 33 |
| Withheld for tax | 540K |
| Planned sales (10b5-1) | 1.1M |
| Discretionary sales | 7,000 |
| Gifts | 1,600 |
| Kept | 216K |
Skin in the game
Directly held shares as reported after each trade, indexed to 100 at the start of the window, up to five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
The chart, in numbers
| Insider | Start of the window | Latest reported | Indexed, start = 100 |
|---|---|---|---|
| DAUTEN KENT P | 1.5M | 1.2M | 79.6 |
Who holds what
the 14 largest holdings of 23| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| DAUTEN KENT P Last trade Jun 1, 2011 | Director | 1.2M | – | – | Jun 1, 2011 | |
| Hytinen Barry EVP and CFO Last trade Jun 18, 2024 | CFO | 431K | – | – | Jun 18, 2024 | |
| BAILEY CLARK H Last trade Feb 14, 2020 | Director | 255K | – | – | Feb 14, 2020 | |
| Kidd Mark EVP, GM Data Centers & ALM Last trade Sep 1, 2026 | Officer | 96K | – | $8.6M | net selling over the year: 0 months buying, 12 months selling | Sep 1, 2026 |
| McIntosh Greg W EVP, Chief Commercial Officer Last trade Sep 1, 2026 | Officer | 76K | – | $2.1M | net selling over the year: 0 months buying, 2 months selling | Sep 1, 2026 |
| Bhargava Mithu EVP, GM Digital Business Unit Last trade Mar 19, 2026 | Officer | 62K | – | $6.2M | net selling over the year: 0 months buying, 1 month selling | Mar 19, 2026 |
| MARSON DEBORAH EVP, General Counsel, Sec. Last trade Sep 3, 2024 | Officer | 60K | – | – | Sep 3, 2024 | |
| Arway Pamela M Last trade May 12, 2026 | Director | 40K | – | $244K | net selling over the year: 0 months buying, 1 month selling | May 12, 2026 |
| Meaney William L President and CEO Last trade Sep 1, 2026 | CEO | 38K | – | $102M | net selling over the year: 0 months buying, 12 months selling | Sep 1, 2026 |
| FORD MONTE E | Director | 32K | – | – | – | |
| Matlock Robin Last trade Jan 2, 2024 | Director | 30K | – | – | Jan 2, 2024 | |
| RAKOWICH WALTER C Last trade May 20, 2026 | Director | 25K | – | $94K | net selling over the year: 0 months buying, 1 month selling | May 20, 2026 |
| Murdock Wendy J. Last trade Sep 17, 2024 | Director | 15K | – | – | Sep 17, 2024 | |
| Tomovcsik John EVP, Chief Operating Officer Last trade Aug 19, 2024 | COO | 14K | – | – | Aug 19, 2024 |
Open-market trade log
the 60 most recent of 607| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | Meaney William L (CEO) 89 shares $116.00 −0.3% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 89 | $116.00 | $10K | −0.3% | Sep 2, 2026 |
| Sep 1, 2026 | Meaney William L (CEO) 6,101 shares $115.00 +0.5% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 6,101 | $115.00 | $702K | +0.5% | Sep 2, 2026 |
| Sep 1, 2026 | Meaney William L (CEO) 11K shares $113.45 +1.9% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 11K | $113.45 | $1.3M | +1.9% | Sep 2, 2026 |
| Sep 1, 2026 | Meaney William L (CEO) 21K shares $114.14 +1.3% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 21K | $114.14 | $2.4M | +1.3% | Sep 2, 2026 |
| Sep 1, 2026 | Kidd Mark (Officer) 6,000 shares $115.60 +0.0% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 6,000 | $115.60 | $694K | +0.0% | Sep 2, 2026 |
| Sep 1, 2026 | McIntosh Greg W (Officer) 5,000 shares $115.60 +0.0% since trade filed Sep 2, 2026 | Planned sale (10b5-1) | 5,000 | $115.60 | $578K | +0.0% | Sep 2, 2026 |
| Aug 7, 2026 | Meaney William L (CEO) 2,909 shares $122.75 −5.8% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 2,909 | $122.75 | $357K | −5.8% | Aug 10, 2026 |
| Aug 7, 2026 | Meaney William L (CEO) 17K shares $122.11 −5.3% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 17K | $122.11 | $2.0M | −5.3% | Aug 10, 2026 |
| Aug 7, 2026 | Meaney William L (CEO) 19K shares $121.10 −4.5% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 19K | $121.10 | $2.3M | −4.5% | Aug 10, 2026 |
| Aug 7, 2026 | Kidd Mark (Officer) 6,000 shares $122.70 −5.8% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 6,000 | $122.70 | $736K | −5.8% | Aug 10, 2026 |
| Aug 6, 2026 | McIntosh Greg W (Officer) 5,000 shares $127.13 −9.1% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 5,000 | $127.13 | $636K | −9.1% | Aug 10, 2026 |
| Aug 6, 2026 | McIntosh Greg W (Officer) 6,839 shares $127.13 −9.1% since trade filed Aug 10, 2026 | Planned sale (10b5-1) | 6,839 | $127.13 | $869K | −9.1% | Aug 10, 2026 |
| Jul 1, 2026 | Meaney William L (CEO) 1,601 shares $124.72 −7.3% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 1,601 | $124.72 | $200K | −7.3% | Jul 2, 2026 |
| Jul 1, 2026 | Meaney William L (CEO) 2,530 shares $125.82 −8.1% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 2,530 | $125.82 | $318K | −8.1% | Jul 2, 2026 |
| Jul 1, 2026 | Meaney William L (CEO) 7,173 shares $123.84 −6.7% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 7,173 | $123.84 | $888K | −6.7% | Jul 2, 2026 |
| Jul 1, 2026 | Meaney William L (CEO) 9,656 shares $122.84 −5.9% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 9,656 | $122.84 | $1.2M | −5.9% | Jul 2, 2026 |
| Jul 1, 2026 | Meaney William L (CEO) 18K shares $121.81 −5.1% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 18K | $121.81 | $2.1M | −5.1% | Jul 2, 2026 |
| Jul 1, 2026 | Kidd Mark (Officer) 6,000 shares $125.62 −8.0% since trade filed Jul 2, 2026 | Planned sale (10b5-1) | 6,000 | $125.62 | $754K | −8.0% | Jul 2, 2026 |
| Jun 1, 2026 | Meaney William L (CEO) 1,091 shares $129.66 −10.8% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 1,091 | $129.66 | $141K | −10.8% | Jun 2, 2026 |
| Jun 1, 2026 | Meaney William L (CEO) 7,523 shares $127.90 −9.6% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 7,523 | $127.90 | $962K | −9.6% | Jun 2, 2026 |
| Jun 1, 2026 | Meaney William L (CEO) 9,247 shares $129.14 −10.5% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 9,247 | $129.14 | $1.2M | −10.5% | Jun 2, 2026 |
| Jun 1, 2026 | Meaney William L (CEO) 10K shares $126.20 −8.4% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 10K | $126.20 | $1.3M | −8.4% | Jun 2, 2026 |
| Jun 1, 2026 | Meaney William L (CEO) 10K shares $127.00 −9.0% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 10K | $127.00 | $1.3M | −9.0% | Jun 2, 2026 |
| Jun 1, 2026 | Kidd Mark (Officer) 6,000 shares $126.70 −8.8% since trade filed Jun 2, 2026 | Planned sale (10b5-1) | 6,000 | $126.70 | $760K | −8.8% | Jun 2, 2026 |
| May 21, 2026 | Borges Daniel (Officer) 7,189 shares $125.50 −7.9% since trade filed May 26, 2026 | Planned sale (10b5-1) | 7,189 | $125.50 | $902K | −7.9% | May 26, 2026 |
| May 20, 2026 | RAKOWICH WALTER C (Director) 757 shares $124.45 −7.1% since trade filed May 21, 2026 | Planned sale (10b5-1) | 757 | $124.45 | $94K | −7.1% | May 21, 2026 |
| May 12, 2026 | Arway Pamela M (Director) 1,892 shares $128.97 −10.4% since trade filed May 13, 2026 | Planned sale (10b5-1) | 1,892 | $128.97 | $244K | −10.4% | May 13, 2026 |
| May 8, 2026 | Meaney William L (CEO) 15K shares $128.52 −10.1% since trade filed May 12, 2026 | Planned sale (10b5-1) | 15K | $128.52 | $1.9M | −10.1% | May 12, 2026 |
| May 8, 2026 | Meaney William L (CEO) 24K shares $129.19 −10.5% since trade filed May 12, 2026 | Planned sale (10b5-1) | 24K | $129.19 | $3.0M | −10.5% | May 12, 2026 |
| May 8, 2026 | Kidd Mark (Officer) 6,000 shares $127.91 −9.6% since trade filed May 11, 2026 | Planned sale (10b5-1) | 6,000 | $127.91 | $767K | −9.6% | May 11, 2026 |
| Apr 1, 2026 | Meaney William L (CEO) 38K shares $102.71 +12.6% since trade filed Apr 2, 2026 | Planned sale (10b5-1) | 38K | $102.71 | $4.0M | +12.6% | Apr 2, 2026 |
| Apr 1, 2026 | Kidd Mark (Officer) 6,000 shares $102.71 +12.6% since trade filed Apr 2, 2026 | Planned sale (10b5-1) | 6,000 | $102.71 | $616K | +12.6% | Apr 2, 2026 |
| Mar 19, 2026 | Bhargava Mithu (Officer) 20 shares $105.64 +9.4% since trade filed Mar 23, 2026 | Planned sale (10b5-1) | 20 | $105.64 | $2K | +9.4% | Mar 23, 2026 |
| Mar 19, 2026 | Bhargava Mithu (Officer) 12K shares $105.13 +10.0% since trade filed Mar 23, 2026 | Planned sale (10b5-1) | 12K | $105.13 | $1.3M | +10.0% | Mar 23, 2026 |
| Mar 19, 2026 | Bhargava Mithu (Officer) 13K shares $105.04 +10.1% since trade filed Mar 23, 2026 | Planned sale (10b5-1) | 13K | $105.04 | $1.3M | +10.1% | Mar 23, 2026 |
| Mar 19, 2026 | Bhargava Mithu (Officer) 14K shares $104.25 +10.9% since trade filed Mar 23, 2026 | Planned sale (10b5-1) | 14K | $104.25 | $1.5M | +10.9% | Mar 23, 2026 |
| Mar 19, 2026 | Bhargava Mithu (Officer) 20K shares $104.30 +10.8% since trade filed Mar 23, 2026 | Planned sale (10b5-1) | 20K | $104.30 | $2.1M | +10.8% | Mar 23, 2026 |
| Mar 5, 2026 | Meaney William L (CEO) 26K shares $105.26 +9.8% since trade filed Mar 9, 2026 | Planned sale (10b5-1) | 26K | $105.26 | $2.8M | +9.8% | Mar 9, 2026 |
| Mar 5, 2026 | Meaney William L (CEO) 34K shares $106.15 +8.9% since trade filed Mar 9, 2026 | Planned sale (10b5-1) | 34K | $106.15 | $3.6M | +8.9% | Mar 9, 2026 |
| Mar 5, 2026 | Meaney William L (CEO) 38K shares $107.02 +8.0% since trade filed Mar 9, 2026 | Planned sale (10b5-1) | 38K | $107.02 | $4.1M | +8.0% | Mar 9, 2026 |
| Mar 4, 2026 | Meaney William L (CEO) 28K shares $106.96 +8.1% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 28K | $106.96 | $3.0M | +8.1% | Mar 5, 2026 |
| Mar 4, 2026 | Meaney William L (CEO) 71K shares $107.52 +7.5% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 71K | $107.52 | $7.6M | +7.5% | Mar 5, 2026 |
| Mar 3, 2026 | Meaney William L (CEO) 18K shares $106.33 +8.7% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 18K | $106.33 | $2.0M | +8.7% | Mar 5, 2026 |
| Mar 3, 2026 | Meaney William L (CEO) 24K shares $105.25 +9.8% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 24K | $105.25 | $2.5M | +9.8% | Mar 5, 2026 |
| Mar 3, 2026 | Meaney William L (CEO) 26K shares $107.94 +7.1% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 26K | $107.94 | $2.8M | +7.1% | Mar 5, 2026 |
| Mar 3, 2026 | Meaney William L (CEO) 31K shares $107.43 +7.6% since trade filed Mar 5, 2026 | Planned sale (10b5-1) | 31K | $107.43 | $3.3M | +7.6% | Mar 5, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 1,824 shares $110.64 +4.5% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 1,824 | $110.64 | $202K | +4.5% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 2,076 shares $107.95 +7.1% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 2,076 | $107.95 | $224K | +7.1% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 2,929 shares $107.16 +7.9% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 2,929 | $107.16 | $314K | +7.9% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 3,200 shares $110.74 +4.4% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 3,200 | $110.74 | $354K | +4.4% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 14K shares $108.27 +6.8% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 14K | $108.27 | $1.5M | +6.8% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 16K shares $108.91 +6.1% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 16K | $108.91 | $1.8M | +6.1% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 18K shares $110.02 +5.1% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 18K | $110.02 | $2.0M | +5.1% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 37K shares $109.07 +6.0% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 37K | $109.07 | $4.1M | +6.0% | Mar 3, 2026 |
| Mar 2, 2026 | Meaney William L (CEO) 41K shares $110.05 +5.0% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 41K | $110.05 | $4.6M | +5.0% | Mar 3, 2026 |
| Mar 2, 2026 | Allerton Jennifer (Director) 7,000 shares $108.88 +6.2% since trade filed Mar 3, 2026 | Discretionary sale | 7,000 | $108.88 | $762K | +6.2% | Mar 3, 2026 |
| Mar 2, 2026 | Kidd Mark (Officer) 6,000 shares $107.27 +7.8% since trade filed Mar 3, 2026 | Planned sale (10b5-1) | 6,000 | $107.27 | $644K | +7.8% | Mar 3, 2026 |
| Feb 20, 2026 | Meaney William L (CEO) 38K shares $108.17 +6.9% since trade filed Feb 24, 2026 | Planned sale (10b5-1) | 38K | $108.17 | $4.2M | +6.9% | Feb 24, 2026 |
| Feb 20, 2026 | Kidd Mark (Officer) 6,000 shares $108.17 +6.9% since trade filed Feb 24, 2026 | Planned sale (10b5-1) | 6,000 | $108.17 | $649K | +6.9% | Feb 24, 2026 |
| Jan 2, 2026 | Meaney William L (CEO) 13K shares $83.55 +38.4% since trade filed Jan 6, 2026 | Planned sale (10b5-1) | 13K | $83.55 | $1.1M | +38.4% | Jan 6, 2026 |
“Since trade” compares with the latest insider-implied price, not a market quote: these pages are built from filings alone. A role here is the one on that day's Form 4, so somebody promoted since appears under both titles.
Filing hygiene
251 Forms 4, 3 years
0 filed late
3 amendments
1.7 avg. days to file
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.