Kidd Mark, EVP and GM of Data Centers and ALM at Iron Mountain Inc. ($IRM), made ten open market sales of $IRM shares in the last year, totaling $6.0 million. His most recent sale occurred on March 2, 2026. These transactions rank 1,686th among 11,678 insiders by sale value, trailing the average of $8.6 million across 6.4 transactions per insider. Kidd Mark recorded no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $102.71 | 125,507.0000 | 297,816,000 | 4.56% | 0.00% |
| March 1, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Performance Units | 149768 | $0.00 | 0.0000 | 297,816,000 | 100.00% | 0.05% |
| March 1, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 149768 | $0.00 | 198,849.0000 | 297,816,000 | 305.14% | 0.05% |
| March 1, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 61342 | $108.33 | 137,507.0000 | 297,816,000 | 30.85% | 0.02% |
| March 2, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $107.27 | 131,507.0000 | 297,816,000 | 4.36% | 0.00% |
| Feb. 20, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $108.17 | 49,081.0000 | 297,816,000 | 10.89% | 0.00% |
| Feb. 16, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | A | Performance Units | 106977 | $0.00 | 149,768.0000 | 297,816,000 | 250.00% | 0.04% |
| Jan. 2, 2026 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $83.10 | 55,081.0000 | 297,816,000 | 9.82% | 0.00% |
| Dec. 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $85.00 | 61,081.0000 | 297,981,000 | 8.94% | 0.00% |
| Nov. 3, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $102.51 | 67,081.0000 | 297,981,000 | 8.21% | 0.00% |
| Oct. 31, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 7306 | $31.46 | 80,387.0000 | 297,981,000 | 10.00% | 0.00% |
| Oct. 31, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 7306 | $100.82 | 73,081.0000 | 297,981,000 | 9.09% | 0.00% |
| Oct. 31, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Employee Stock Option (Right to Buy) | 7306 | $31.46 | 0.0000 | 297,981,000 | 100.00% | 0.00% |
| Oct. 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $101.63 | 73,081.0000 | 297,981,000 | 7.59% | 0.00% |
| Sept. 2, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $91.05 | 79,081.0000 | 296,234,000 | 7.05% | 0.00% |
| Aug. 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $97.20 | 85,081.0000 | 296,234,000 | 6.59% | 0.00% |
| July 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 6000 | $102.02 | 91,081.0000 | 296,234,000 | 6.18% | 0.00% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Performance Units | 54960 | $0.00 | 0.0000 | 296,234,000 | 100.00% | 0.02% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 54960 | $0.00 | 117,898.0000 | 296,234,000 | 87.32% | 0.02% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 22486 | $93.17 | 95,412.0000 | 296,234,000 | 19.07% | 0.01% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 2819 | $0.00 | 98,231.0000 | 296,234,000 | 2.95% | 0.00% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 1150 | $93.17 | 97,081.0000 | 296,234,000 | 1.17% | 0.00% |
| March 1, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 2819 | $0.00 | 0.0000 | 296,234,000 | 100.00% | 0.00% |
| Feb. 14, 2025 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | A | Performance Units | 39257 | $0.00 | 54,960.0000 | 296,234,000 | 250.00% | 0.01% |
| April 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Employee Stock Option (Right to Buy) | 4458 | $38.83 | 0.0000 | 293,965,000 | 100.00% | 0.00% |
| April 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 4458 | $38.83 | 67,396.0000 | 293,965,000 | 7.08% | 0.00% |
| April 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 4458 | $80.21 | 62,938.0000 | 293,965,000 | 6.61% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 2818 | $0.00 | 2,819.0000 | 293,965,000 | 49.99% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 5063 | $0.00 | 0.0000 | 293,965,000 | 100.00% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Performance Units | 25334 | $0.00 | 0.0000 | 293,965,000 | 100.00% | 0.01% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 1249 | $81.03 | 62,938.0000 | 293,965,000 | 1.95% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 25334 | $0.00 | 68,073.0000 | 293,965,000 | 59.28% | 0.01% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 5063 | $0.00 | 63,614.0000 | 293,965,000 | 8.65% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 2245 | $81.03 | 61,369.0000 | 293,965,000 | 3.53% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 2818 | $0.00 | 64,187.0000 | 293,965,000 | 4.59% | 0.00% |
| March 1, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 9522 | $81.03 | 58,551.0000 | 293,965,000 | 13.99% | 0.00% |
| Feb. 22, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | A | Performance Units | 10290 | $0.00 | 25,334.0000 | 293,965,000 | 68.40% | 0.00% |
| Jan. 2, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 1376 | $24.80 | 44,115.0000 | 293,965,000 | 3.22% | 0.00% |
| Jan. 2, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 1376 | $69.90 | 42,739.0000 | 293,965,000 | 3.12% | 0.00% |
| Jan. 2, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Employee Stock Option (Right to Buy) | 1376 | $24.80 | 0.0000 | 293,965,000 | 100.00% | 0.00% |
| Jan. 2, 2024 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | S | Common Stock, par value $.01 per share | 10000 | $69.90 | 42,739.0000 | 293,965,000 | 18.96% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 2818 | $0.00 | 54,101.0000 | 292,444,177 | 5.49% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 2818 | $0.00 | 5,637.0000 | 292,444,177 | 33.33% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 5063 | $0.00 | 5,063.0000 | 292,444,177 | 50.00% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 1362 | $52.58 | 52,739.0000 | 292,444,177 | 2.52% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 5063 | $0.00 | 53,730.0000 | 292,444,177 | 10.40% | 0.00% |
| March 1, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 2447 | $52.58 | 51,283.0000 | 292,444,177 | 4.55% | 0.00% |
| Feb. 23, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 22846 | $0.00 | 59,713.0000 | 292,444,177 | 61.97% | 0.01% |
| Feb. 23, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | A | Performance Units | 22846 | $0.00 | 22,846.0000 | 292,444,177 | 9999.99% | 0.01% |
| Feb. 23, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 11046 | $52.77 | 48,667.0000 | 292,444,177 | 18.50% | 0.00% |
| Feb. 23, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Performance Units | 22846 | $0.00 | 0.0000 | 292,444,177 | 100.00% | 0.01% |
| Feb. 21, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Restricted Stock Units | 4216 | $0.00 | 0.0000 | 292,444,177 | 100.00% | 0.00% |
| Feb. 21, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | F | Common Stock, par value $.01 per share | 2131 | $50.67 | 36,867.0000 | 292,444,177 | 5.46% | 0.00% |
| Feb. 21, 2023 | IRON MOUNTAIN INC | $IRM | Kidd Mark | EVP, GM Data Centers & ALM | M | Common Stock, par value $.01 per share | 4216 | $0.00 | 38,998.0000 | 292,444,177 | 12.12% | 0.00% |