Simplex Trading
APT icon

Simplex Trading’s Alpha Pro Tech APT Stock Holding History

Simplex Trading’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 		$94.3K Buy
+16,772
New +$87.7K ﹤0.01% 5616
2025
Q2 		– Sell
-1,188
Closed -$5.38K – 8559
2025
Q1 		$5K Buy
+1,188
New +$6.35K ﹤0.01% 7514
2024
Q4 		– Sell
-5,970
Closed -$32.8K – 8443
2024
Q3 		$34K Sell
5,970
-3,064
-34% -$17.7K ﹤0.01% 6226
2024
Q2 		$49K Sell
9,034
-13,615
-60% -$76K ﹤0.01% 6096
2024
Q1 		$141K Buy
+22,649
New +$124K ﹤0.01% 5221
2022
Q4 		– Sell
-27,249
Closed -$111K – 9134
2022
Q3 		$110K Sell
27,249
-17,443
-39% -$75.9K ﹤0.01% 5379
2022
Q2 		$199K Sell
44,692
-816
-2% -$3.48K ﹤0.01% 4602
2022
Q1 		$191K Buy
45,508
+20,392
+81% +$94.8K ﹤0.01% 5214
2021
Q4 		$149K Buy
25,116
+20,145
+405% +$117K ﹤0.01% 5606
2021
Q3 		$42K Hold
4,971
– – ﹤0.01% 7713
2021
Q2 		$42K Sell
4,971
-20,711
-81% -$181K ﹤0.01% 7854
2021
Q1 		$250K Buy
25,682
+24,641
+2,367% +$327K ﹤0.01% 4400
2020
Q4 		$11K Sell
1,041
-14,067
-93% -$190K ﹤0.01% 7336
2020
Q3 		$223K Buy
15,108
+4,630
+44% +$78.5K ﹤0.01% 3961
2020
Q2 		$185K Buy
+10,478
New +$145K ﹤0.01% 4086
2019
Q4 		– Sell
-949
Closed -$3K – 7241
2019
Q3 		$3K Buy
949
+263
+38% +$921 ﹤0.01% 6768
2019
Q2 		$2K Buy
+686
New +$2.46K ﹤0.01% 6717
2018
Q4 		– Sell
-262
Closed -$933 – 6942
2018
Q3 		$0 Hold
262
– – ﹤0.01% 7349
2018
Q2 		$0 Buy
+262
New +$886 ﹤0.01% 7324
2017
Q3 		– Sell
-249
Closed -$857 – 5841
2017
Q2 		$0 Sell
249
-315
-56% -$900 ﹤0.01% 6031
2017
Q1 		$1K Buy
+564
New +$1.71K ﹤0.01% 5532
2015
Q4 		– Sell
-3,020
Closed -$5.67K – 5337
2015
Q3 		$6K Sell
3,020
-1,204
-29% -$2.56K ﹤0.01% 3808
2015
Q2 		$9K Buy
4,224
+3,866
+1,080% +$9K ﹤0.01% 3121
2015
Q1 		$0 Buy
+358
New +$917 ﹤0.01% 4912

Other funds holding APT

NIM
Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Geode Capital Management
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
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Simplex Trading's APT Position: Q2 2026 in Review

Simplex Trading opened a new position in Alpha Pro Tech (APT) in Q2 2026: 16,772 shares worth $94.3K. The stake represents ﹤0.01% of the portfolio and ranks #5616 among its holdings. This is a return to the name: Simplex Trading previously reported a position in APT as recently as Q1 2025.

Simplex Trading first reported a position in APT in Q1 2015 and has held it in 24 quarters since. The position peaked at $250K in Q1 2021. 41 funds tracked by Wall St. Rank hold APT as of Q2 2026.

  • Simplex Trading held 16,772 shares of Alpha Pro Tech worth $94.3K as of Q2 2026.
  • Alpha Pro Tech was a new Simplex Trading position in Q2 2026.
  • Alpha Pro Tech made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5616 holding.
  • Simplex Trading first reported a position in Alpha Pro Tech in Q1 2015 and has held it in 24 quarters since.
  • Simplex Trading's Alpha Pro Tech position peaked at $250K in Q1 2021.
  • 41 funds tracked by Wall St. Rank held Alpha Pro Tech as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.