Jane Street’s Alpha Pro Tech APT Stock Holding History

Jane Street’s Portfolio APT Stock Details APT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$79.2K	Sell	14,100 -400	-3%	-$2.09K	﹤0.01%	10725
2026 Q1	$64.4K	Sell	14,500 -6,600	-31%	-$32.4K	﹤0.01%	10872
2025 Q4	$93.7K	Buy	21,100 +7,300	+53%	+$33.6K	﹤0.01%	10222
2025 Q3	$66K	Buy	+13,800	New	+$66K	﹤0.01%	10270
2022 Q2	–	Sell	-32,900	Closed	-$138K	–	9593
2022 Q1	$138K	Sell	32,900 -110,300	-77%	-$513K	﹤0.01%	9281
2021 Q4	$855K	Sell	143,200 -3,700	-3%	-$21.6K	﹤0.01%	6219
2021 Q3	$989K	Buy	+146,900	New	+$1.21M	﹤0.01%	5924
2021 Q2	–	Sell	-46,300	Closed	-$452K	–	9726
2021 Q1	$452K	Buy	46,300 +15,400	+50%	+$204K	﹤0.01%	6986
2020 Q4	$345K	Sell	30,900 -14,000	-31%	-$189K	﹤0.01%	6222
2020 Q3	$664K	Sell	44,900 -339,600	-88%	-$5.76M	﹤0.01%	4736
2020 Q2	$6.81M	Buy	384,500 +225,300	+142%	+$3.11M	0.01%	1510
2020 Q1	$1.92M	Buy	+159,200	New	+$1.33M	﹤0.01%	2061

Other funds holding APT

NIM

Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

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

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

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

BCM

Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

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

Jane Street's APT Position: Q2 2026 in Review

Jane Street reduced its Alpha Pro Tech (APT) stake by 49% in Q2 2026, selling an estimated $65.8K and leaving 13,047 shares worth $73.3K. The position accounts for ﹤0.01% of the portfolio, ranked #10770.

Jane Street first reported a position in APT in Q1 2020 and has held it in 8 quarters since. The position peaked at $2.13M in Q2 2020. 41 funds tracked by Wall St. Rank hold APT as of Q2 2026.

Jane Street held 13,047 shares of Alpha Pro Tech worth $73.3K as of Q2 2026.
Jane Street sold 12,583 Alpha Pro Tech shares in Q2 2026, an estimated $65.8K.
Alpha Pro Tech made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10770 holding.
Jane Street first reported a position in Alpha Pro Tech in Q1 2020 and has held it in 8 quarters since.
Jane Street's Alpha Pro Tech position peaked at $2.13M in Q2 2020.
41 funds tracked by Wall St. Rank held Alpha Pro Tech as of Q2 2026.

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