Harbour Investments’s Atossa Therapeutics ATOS Stock Holding History

Harbour Investments’s Portfolio ATOS Stock Details ATOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$212	Hold	110	–	–	﹤0.01%	4538
2026 Q1	$579	Hold	110	–	–	﹤0.01%	4226
2025 Q4	$977	Sell	110 -4	-4%	-$51	﹤0.01%	3459
2025 Q3	$1.48K	Hold	114	–	–	﹤0.01%	3338
2025 Q2	$1.42K	Hold	114	–	–	﹤0.01%	3215
2025 Q1	$1.15K	Hold	114	–	–	﹤0.01%	3208
2024 Q4	$1.61K	Hold	114	–	–	﹤0.01%	3059
2024 Q3	$2.6K	Hold	114	–	–	﹤0.01%	2846
2024 Q2	$2.04K	Hold	114	–	–	﹤0.01%	2806
2024 Q1	$3.08K	Hold	114	–	–	﹤0.01%	2653
2023 Q4	$1.51K	Hold	114	–	–	﹤0.01%	2750
2023 Q3	$1.26K	Hold	114	–	–	﹤0.01%	2655
2023 Q2	$2.16K	Hold	114	–	–	﹤0.01%	2528
2023 Q1	$1.24K	Hold	114	–	–	﹤0.01%	2649
2022 Q4	$904	Hold	114	–	–	﹤0.01%	2705
2022 Q3	$2K	Hold	114	–	–	﹤0.01%	2393
2022 Q2	$2K	Buy	+114	New	+$1.8K	﹤0.01%	2393
2021 Q4	$3K	Sell	114 -117	-51%	-$4.28K	﹤0.01%	2291
2021 Q3	$11K	Hold	231	–	–	﹤0.01%	2596
2021 Q2	$22K	Buy	231 +63	+38%	+$3.33K	﹤0.01%	2284
2021 Q1	$5K	Buy	+168	New	+$6.14K	﹤0.01%	2886

Other funds holding ATOS

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

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

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

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

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

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

Harbour Investments's ATOS Position: Q2 2026 in Review

Harbour Investments held its Atossa Therapeutics (ATOS) position steady in Q2 2026 at 110 shares worth $212. The position accounts for ﹤0.01% of the portfolio, ranked #4538.

Harbour Investments first reported a position in ATOS in Q1 2021 and has held it in 21 quarters since. The position peaked at $22K in Q2 2021. 31 funds tracked by Wall St. Rank hold ATOS as of Q2 2026.

Harbour Investments held 110 shares of Atossa Therapeutics worth $212 as of Q2 2026.
Harbour Investments left its Atossa Therapeutics share count unchanged in Q2 2026.
Atossa Therapeutics made up ﹤0.01% of Harbour Investments's portfolio in Q2 2026, its #4538 holding.
Harbour Investments first reported a position in Atossa Therapeutics in Q1 2021 and has held it in 21 quarters since.
Harbour Investments's Atossa Therapeutics position peaked at $22K in Q2 2021.
31 funds tracked by Wall St. Rank held Atossa Therapeutics as of Q2 2026.

Based on Harbour Investments's 13F filing for Q2 2026, filed 12 Aug 2026.