Two Sigma Advisers’s Iron Mountain IRM Stock Holding History

Two Sigma Advisers’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
2013 Q3	–	Sell	-25,968	Closed	-$639K	–	2243
2013 Q2	$639K	Buy	+25,968	New	+$838K	0.01%	1156

Other funds holding IRM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Two Sigma Advisers's IRM Position: Q1 2026 in Review

Two Sigma Advisers sold out of Iron Mountain (IRM) in Q1 2026, closing a stake of 130,324 shares — an estimated $10.8M sold.

Two Sigma Advisers first reported a position in IRM in Q2 2013 and held it in 32 quarters. The position peaked at $19.2M in Q1 2019. 1,082 funds tracked by Wall St. Rank hold IRM as of Q1 2026.

Two Sigma Advisers reported no remaining Iron Mountain position as of Q1 2026 after selling out during the quarter.
Two Sigma Advisers sold 130,324 Iron Mountain shares in Q1 2026, an estimated $10.8M.
Two Sigma Advisers first reported a position in Iron Mountain in Q2 2013 and held it in 32 quarters.
Two Sigma Advisers's Iron Mountain position peaked at $19.2M in Q1 2019.
1,082 funds tracked by Wall St. Rank held Iron Mountain as of Q1 2026.

Based on Two Sigma Advisers's 13F filing for Q1 2026.