Thompson Siegel & Walmsley’s Inogen INGN Stock Holding History

Thompson Siegel & Walmsley’s Portfolio INGN Stock Details INGN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-94,900	Closed	-$586K	–	448
2026 Q1	$586K	Sell	94,900 -34,076	-26%	-$210K	0.01%	347
2025 Q4	$867K	Sell	128,976 -1,954	-1%	-$14.7K	0.01%	318
2025 Q3	$1.07M	Buy	130,930 +29,317	+29%	+$219K	0.02%	310
2025 Q2	$714K	Sell	101,613 -24,080	-19%	-$162K	0.01%	321
2025 Q1	$896K	Buy	+125,693	New	+$1.19M	0.02%	294
2024 Q2	–	Sell	-35,201	Closed	-$284K	–	368
2024 Q1	$284K	Buy	+35,201	New	+$249K	﹤0.01%	335
2019 Q2	–	Sell	-1,500	Closed	-$143K	–	757
2019 Q1	$143K	Hold	1,500	–	–	﹤0.01%	407
2018 Q4	$186K	Buy	+1,500	New	+$247K	﹤0.01%	378
2018 Q3	–	Sell	-1,000	Closed	-$186K	–	780
2018 Q2	$186K	Buy	+1,000	New	+$166K	﹤0.01%	420

Other funds holding INGN

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

Armistice Capital New York $8.17B AUM 68.82% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

DCM

DAFNA Capital Management Los Angeles, California $524M AUM 164.42% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

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

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

Thompson Siegel & Walmsley's INGN Position: Q2 2026 in Review

Thompson Siegel & Walmsley sold out of Inogen (INGN) in Q2 2026, closing a stake of 94,900 shares — an estimated $586K sold.

Thompson Siegel & Walmsley first reported a position in INGN in Q2 2018 and held it in 9 quarters. The position peaked at $1.07M in Q3 2025. 129 funds tracked by Wall St. Rank hold INGN as of Q2 2026.

Thompson Siegel & Walmsley reported no remaining Inogen position as of Q2 2026 after selling out during the quarter.
Thompson Siegel & Walmsley sold 94,900 Inogen shares in Q2 2026, an estimated $586K.
Thompson Siegel & Walmsley first reported a position in Inogen in Q2 2018 and held it in 9 quarters.
Thompson Siegel & Walmsley's Inogen position peaked at $1.07M in Q3 2025.
129 funds tracked by Wall St. Rank held Inogen as of Q2 2026.

Based on Thompson Siegel & Walmsley's 13F filing for Q2 2026, filed 11 Aug 2026.