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 Q1	–	Sell	-48,600	Closed	-$216K	–	11504
2025 Q4	$216K	Buy	+48,600	New	+$224K	﹤0.01%	9564
2023 Q1	–	Sell	-12,900	Closed	-$51.9K	–	8969
2022 Q4	$51.9K	Hold	12,900	–	–	﹤0.01%	8356
2022 Q3	$52K	Hold	12,900	–	–	﹤0.01%	8910
2022 Q2	$58K	Sell	12,900 -300	-2%	-$1.28K	﹤0.01%	8877
2022 Q1	$55K	Sell	13,200 -15,500	-54%	-$72K	﹤0.01%	9657
2021 Q4	$171K	Sell	28,700 -19,400	-40%	-$113K	﹤0.01%	8927
2021 Q3	$324K	Buy	48,100 +21,100	+78%	+$174K	﹤0.01%	8036
2021 Q2	$231K	Sell	27,000 -8,400	-24%	-$73.3K	﹤0.01%	8590
2021 Q1	$346K	Buy	35,400 +5,000	+16%	+$66.3K	﹤0.01%	7469
2020 Q4	$339K	Sell	30,400 -69,800	-70%	-$942K	﹤0.01%	6244
2020 Q3	$1.48M	Sell	100,200 -79,400	-44%	-$1.35M	﹤0.01%	3477
2020 Q2	$3.18M	Sell	179,600 -9,500	-5%	-$131K	﹤0.01%	2430
2020 Q1	$2.28M	Buy	+189,100	New	+$1.58M	﹤0.01%	1888

Other funds holding APT

NIM

Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

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

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $4.97B AUM 44.96% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Jane Street's APT Position: Q1 2026 in Review

Jane Street opened a new position in Alpha Pro Tech (APT) in Q1 2026: 25,630 shares worth $114K. The stake represents ﹤0.01% of the portfolio and ranks #10567 among its holdings. This is a return to the name: Jane Street previously reported a position in APT as recently as Q1 2025.

Jane Street first reported a position in APT in Q1 2020 and has held it in 7 quarters since. The position peaked at $2.13M in Q2 2020. 37 funds tracked by Wall St. Rank hold APT as of Q1 2026.

Jane Street held 25,630 shares of Alpha Pro Tech worth $114K as of Q1 2026.
Alpha Pro Tech was a new Jane Street position in Q1 2026.
Alpha Pro Tech made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10567 holding.
Jane Street first reported a position in Alpha Pro Tech in Q1 2020 and has held it in 7 quarters since.
Jane Street's Alpha Pro Tech position peaked at $2.13M in Q2 2020.
37 funds tracked by Wall St. Rank held Alpha Pro Tech as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.