M&G plc’s Iron Mountain IRM Stock Holding History

M&G plc’s Portfolio IRM Stock Details IRM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$654K	Hold	5,193	–	–	﹤0.01%	325
2026 Q1	$530K	Buy	5,193 +230	+5%	+$22.9K	﹤0.01%	342
2025 Q4	$412K	Buy	+4,963	New	+$465K	﹤0.01%	338
2025 Q2	–	Sell	-4,376	Closed	-$376K	–	446
2025 Q1	$376K	Buy	+4,376	New	+$422K	﹤0.01%	391

Other funds holding IRM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return

M&G plc's IRM Position: Q2 2026 in Review

M&G plc held its Iron Mountain (IRM) position steady in Q2 2026 at 5,193 shares worth $654K. The position accounts for ﹤0.01% of the portfolio, ranked #325.

M&G plc first reported a position in IRM in Q1 2025 and has held it in 4 quarters since. 1,170 funds tracked by Wall St. Rank hold IRM as of Q2 2026.

M&G plc held 5,193 shares of Iron Mountain worth $654K as of Q2 2026.
M&G plc left its Iron Mountain share count unchanged in Q2 2026.
Iron Mountain made up ﹤0.01% of M&G plc's portfolio in Q2 2026, its #325 holding.
M&G plc first reported a position in Iron Mountain in Q1 2025 and has held it in 4 quarters since.
1,170 funds tracked by Wall St. Rank held Iron Mountain as of Q2 2026.

Based on M&G plc's 13F filing for Q2 2026, filed 6 Aug 2026.