Jane Street’s Geospace Technologies GEOS Stock Holding History

Jane Street’s Portfolio GEOS Stock Details GEOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$144K	Buy	+21,271	New	+$183K	﹤0.01%	10379
2026 Q1	–	Sell	-24,918	Closed	-$421K	–	12072
2025 Q4	$421K	Sell	24,918 -11,038	-31%	-$222K	﹤0.01%	8081
2025 Q3	$682K	Buy	+35,956	New	+$582K	﹤0.01%	7165
2024 Q3	–	Sell	-22,027	Closed	-$198K	–	9865
2024 Q2	$198K	Sell	22,027 -104,463	-83%	-$1.17M	﹤0.01%	8394
2024 Q1	$1.67M	Buy	126,490 +81,814	+183%	+$1.1M	﹤0.01%	4458
2023 Q4	$579K	Buy	+44,676	New	+$546K	﹤0.01%	6509
2020 Q4	–	Sell	-15,159	Closed	-$94K	–	7696
2020 Q3	$94K	Sell	15,159 -28,696	-65%	-$196K	﹤0.01%	6770
2020 Q2	$330K	Buy	+43,855	New	+$292K	﹤0.01%	5695
2014 Q2	–	Sell	-4,067	Closed	-$269K	–	2764
2014 Q1	$269K	Buy	+4,067	New	+$312K	﹤0.01%	2077

Other funds holding GEOS

TCM

Tieton Capital Management Yakima, Washington $348M AUM 45.13% 1-Year Est. Return

GWI

Grace & White Inc Ny, New York $632M AUM 34.34% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

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

US Bancorp Minneapolis, Minnesota $91.6B AUM 29.2% 1-Year Est. Return

SEI Investments Oaks, Pennsylvania $113B AUM 34.64% 1-Year Est. Return

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

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

Jane Street's GEOS Position: Q2 2026 in Review

Jane Street opened a new position in Geospace Technologies (GEOS) in Q2 2026: 21,271 shares worth $144K. The stake represents ﹤0.01% of the portfolio and ranks #10379 among its holdings. This is a return to the name: Jane Street previously reported a position in GEOS as recently as Q4 2025.

Jane Street first reported a position in GEOS in Q1 2014 and has held it in 9 quarters since. The position peaked at $1.67M in Q1 2024. 83 funds tracked by Wall St. Rank hold GEOS as of Q2 2026.

Jane Street held 21,271 shares of Geospace Technologies worth $144K as of Q2 2026.
Geospace Technologies was a new Jane Street position in Q2 2026.
Geospace Technologies made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10379 holding.
Jane Street first reported a position in Geospace Technologies in Q1 2014 and has held it in 9 quarters since.
Jane Street's Geospace Technologies position peaked at $1.67M in Q1 2024.
83 funds tracked by Wall St. Rank held Geospace Technologies as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.