Harbour Investments’s Altimmune ALT Stock Holding History

Harbour Investments’s Portfolio ALT Stock Details ALT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$308	Buy	+100	New	+$425	﹤0.01%	4355
2024 Q4	–	Sell	-310	Closed	-$1.9K	–	3488
2024 Q3	$1.9K	Buy	+310	New	+$2.1K	﹤0.01%	2937
2024 Q1	–	Sell	-100	Closed	-$1.13K	–	3214
2023 Q4	$1.13K	Hold	100	–	–	﹤0.01%	2797
2023 Q3	$260	Hold	100	–	–	﹤0.01%	2867
2023 Q2	$353	Buy	+100	New	+$449	﹤0.01%	2852
2021 Q4	–	Sell	-3	Closed	–	–	2639
2021 Q3	$0	Buy	3 +1	+50%	+$12	﹤0.01%	3707
2021 Q2	$0	Hold	2	–	–	﹤0.01%	3744
2021 Q1	$0	Buy	+2	New	+$32	﹤0.01%	3582

Other funds holding ALT

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

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Marshall Wace London, United Kingdom $100B AUM 35.1% 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

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Harbour Investments's ALT Position: Q1 2026 in Review

Harbour Investments opened a new position in Altimmune (ALT) in Q1 2026: 100 shares worth $308. The stake represents ﹤0.01% of the portfolio and ranks #4355 among its holdings. This is a return to the name: Harbour Investments previously reported a position in ALT as recently as Q3 2024.

Harbour Investments first reported a position in ALT in Q1 2021 and has held it in 8 quarters since. The position peaked at $1.9K in Q3 2024. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

Harbour Investments held 100 shares of Altimmune worth $308 as of Q1 2026.
Altimmune was a new Harbour Investments position in Q1 2026.
Altimmune made up ﹤0.01% of Harbour Investments's portfolio in Q1 2026, its #4355 holding.
Harbour Investments first reported a position in Altimmune in Q1 2021 and has held it in 8 quarters since.
Harbour Investments's Altimmune position peaked at $1.9K in Q3 2024.
173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.