# IRON MTN INC DEL (IRM) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 46284V101
Page URL: https://superinvestorclub.com/stock/IRM
Last updated: 2026-08-29T13:47:22.656Z

## Summary

As of the most recent 13F filing period, IRON MTN INC DEL (IRM) is held by 0 tracked superinvestors with an aggregate position value of $0 representing 0 shares.

## Top institutional holders (0)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|

## Ownership history (quarter-over-quarter)

- 2023-12-31: 1 holders, $959,566 aggregate, 013712 shares
- 2024-03-31: 2 holders, $2.3M aggregate, 0250663363 shares
- 2024-06-30: 1 holders, $2.2M aggregate, 024069 shares
- 2024-12-31: 1 holders, $217,998 aggregate, 02074 shares
- 2026-03-31: 1 holders, $479,445 aggregate, 04694 shares

## Recent congressional trades (8)

- 2025-12-18: Markwayne Mullin (Republican-OK) sale $1,001 - $15,000
- 2025-12-18: Markwayne Mullin (Republican-OK) sale $15,001 - $50,000
- 2025-08-26: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-07-25: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-03-06: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-02-19: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-02-03: Markwayne Mullin (Republican-OK) purchase $1,001 - $15,000
- 2025-01-02: Markwayne Mullin (Republican-OK) purchase $15,001 - $50,000

## Recent insider transactions (0)


## Citation

When citing, use: "IRON MTN INC DEL (IRM) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/IRM), aggregating SEC 13F, Form 4, and congressional disclosures."