Flagship Harbor Advisors’s Immuneering IMRX Stock Holding History

Flagship Harbor Advisors’s Portfolio IMRX Stock Details IMRX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-1,500	Closed	-$9.87K	–	1441
2025 Q4	$9.87K	Buy	+1,500	New	+$9.63K	﹤0.01%	1512

Other funds holding IMRX

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

Sanofi Paris, France $336M AUM 126.85% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

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

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

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

OCM

Occam Crest Management Darien, Connecticut $165M AUM

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Flagship Harbor Advisors's IMRX Position: Q1 2026 in Review

Flagship Harbor Advisors sold out of Immuneering (IMRX) in Q1 2026, closing a stake of 1,500 shares — an estimated $9.87K sold.

Flagship Harbor Advisors first reported a position in IMRX in Q4 2025 and held it in 1 quarter. The position peaked at $9.87K in Q4 2025. 95 funds tracked by Wall St. Rank hold IMRX as of Q1 2026.

Flagship Harbor Advisors reported no remaining Immuneering position as of Q1 2026 after selling out during the quarter.
Flagship Harbor Advisors sold 1,500 Immuneering shares in Q1 2026, an estimated $9.87K.
Flagship Harbor Advisors first reported a position in Immuneering in Q4 2025 and held it in 1 quarter.
Flagship Harbor Advisors's Immuneering position peaked at $9.87K in Q4 2025.
95 funds tracked by Wall St. Rank held Immuneering as of Q1 2026.

Based on Flagship Harbor Advisors's 13F filing for Q1 2026, filed 28 Apr 2026.