Renaissance Technologies (RenTech)'s IRM Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 2,400 shares of Iron Mountain Incorporated (IRM) worth $245,136, representing 0.00% of the portfolio. First purchased in 2015-Q4, this long-term strategic position has been held for 23 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in IRM, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2021, adding 258,100 shares. Largest reduction occurred in Q1 2016, reducing 337,763 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Iron Mountain Incorporated (IRM) Holding Value Over Time
Track share changes against reported price movement
Quarterly Iron Mountain Incorporated (IRM) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +2,400 | New Buy | 2,400 | $102.14 |
| Q2 2025 | -85,763 | Sold Out | 0 | $0.00 |
| Q1 2025 | +85,763 | New Buy | 85,763 | $86.04 |
| Q1 2023 | -80,600 | Sold Out | 0 | $0.00 |
| Q4 2022 | -53,900 | Reduce 40.07% | 80,600 | $0.05 |
| Q3 2022 | -143,200 | Reduce 51.57% | 134,500 | $43.97 |
| Q2 2022 | +161,400 | Add 138.78% | 277,700 | $48.69 |
| Q1 2022 | -241,263 | Reduce 67.47% | 116,300 | $55.41 |
| Q4 2021 | +184,200 | Add 106.25% | 357,563 | $52.33 |
| Q3 2021 | -199,200 | Reduce 53.47% | 173,363 | $43.45 |
| Q2 2021 | +258,100 | Add 225.49% | 372,563 | $42.32 |
| Q1 2021 | +114,463 | New Buy | 114,463 | $37.01 |
| Q2 2020 | -88,300 | Sold Out | 0 | $0.00 |
| Q1 2020 | +88,300 | New Buy | 88,300 | $23.81 |
| Q2 2019 | -89,800 | Sold Out | 0 | $0.00 |
| Q1 2019 | -36,900 | Reduce 29.12% | 89,800 | $35.46 |
| Q4 2018 | -55,800 | Reduce 30.58% | 126,700 | $32.41 |
| Q3 2018 | +175,486 | Add 2501.94% | 182,500 | $34.52 |
| Q2 2018 | +7,014 | New Buy | 7,014 | $34.93 |
| Q1 2018 | -54,062 | Sold Out | 0 | $0.00 |
| Q4 2017 | +54,062 | New Buy | 54,062 | $37.73 |
| Q1 2016 | -337,763 | Sold Out | 0 | $0.00 |
| Q4 2015 | +337,763 | New Buy | 337,763 | $27.01 |
Renaissance Technologies (RenTech)'s Iron Mountain Incorporated Investment FAQs
Renaissance Technologies (RenTech) first purchased Iron Mountain Incorporated (IRM) in Q4 2015, acquiring 337,763 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Iron Mountain Incorporated (IRM) for 23 quarters since Q4 2015.
Renaissance Technologies (RenTech)'s largest addition to Iron Mountain Incorporated (IRM) was in Q4 2015, adding 337,763 shares worth $9.12 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 2,400 shares of Iron Mountain Incorporated (IRM), valued at approximately $245,136.
As of the Q1 2026 filing, Iron Mountain Incorporated (IRM) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Iron Mountain Incorporated (IRM) was 372,563 shares, as reported at the end of Q2 2021.