Citadel Advisors
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Citadel Advisors’s Alpha Pro Tech APT Stock Holding History

Citadel Advisors’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 		$875K Buy
197,100
+76,800
+64% +$377K ﹤0.01% 7973
2025
Q4 		$534K Buy
120,300
+79,700
+196% +$367K ﹤0.01% 8872
2025
Q3 		$194K Sell
40,600
-2,000
-5% -$9.57K ﹤0.01% 11292
2025
Q2 		$200K Buy
42,600
+33,100
+348% +$150K ﹤0.01% 10684
2025
Q1 		$47.5K Buy
9,500
+7,900
+494% +$42.2K ﹤0.01% 12366
2024
Q4 		$8.46K Sell
1,600
-21,200
-93% -$116K ﹤0.01% 13684
2024
Q3 		$130K Buy
22,800
+17,100
+300% +$98.9K ﹤0.01% 10759
2024
Q2 		$31.4K Sell
5,700
-19,500
-77% -$109K ﹤0.01% 12223
2024
Q1 		$157K Sell
25,200
-106,200
-81% -$581K ﹤0.01% 10695
2023
Q4 		$695K Buy
131,400
+23,500
+22% +$108K ﹤0.01% 7415
2023
Q3 		$468K Buy
107,900
+56,500
+110% +$235K ﹤0.01% 8205
2023
Q2 		$205K Sell
51,400
-10,900
-17% -$42.9K ﹤0.01% 9840
2023
Q1 		$259K Sell
62,300
-34,600
-36% -$144K ﹤0.01% 9686
2022
Q4 		$390K Sell
96,900
-27,900
-22% -$114K ﹤0.01% 8771
2022
Q3 		$505K Buy
124,800
+45,000
+56% +$196K ﹤0.01% 8426
2022
Q2 		$356K Sell
79,800
-75,100
-48% -$320K ﹤0.01% 9423
2022
Q1 		$651K Sell
154,900
-178,800
-54% -$831K ﹤0.01% 8748
2021
Q4 		$1.99M Buy
333,700
+91,200
+38% +$532K ﹤0.01% 6252
2021
Q3 		$1.63M Buy
242,500
+106,900
+79% +$883K ﹤0.01% 6878
2021
Q2 		$1.16M Sell
135,600
-11,900
-8% -$104K ﹤0.01% 7961
2021
Q1 		$1.44M Buy
147,500
+88,500
+150% +$1.17M ﹤0.01% 7207
2020
Q4 		$658K Sell
59,000
-53,200
-47% -$718K ﹤0.01% 7622
2020
Q3 		$1.66M Sell
112,200
-133,900
-54% -$2.27M ﹤0.01% 5078
2020
Q2 		$4.36M Sell
246,100
-85,800
-26% -$1.18M ﹤0.01% 3269
2020
Q1 		$4.01M Buy
+331,900
New +$2.77M ﹤0.01% 3022
2016
Q1 		– Sell
-12,900
Closed -$23K – 6707
2015
Q4 		$23K Sell
12,900
-2,400
-16% -$4.5K ﹤0.01% 7825
2015
Q3 		$30K Buy
15,300
+14,500
+1,813% +$30.8K ﹤0.01% 7912
2015
Q2 		$2K Buy
+800
New +$1.86K ﹤0.01% 8617

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
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Group One Trading
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
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Citadel Advisors's APT Position: Q1 2026 in Review

Citadel Advisors sold out of Alpha Pro Tech (APT) in Q1 2026, closing a stake of 21,351 shares — an estimated $105K sold.

Citadel Advisors first reported a position in APT in Q4 2014 and held it in 26 quarters. The position peaked at $1.3M in Q2 2020. 37 funds tracked by Wall St. Rank hold APT as of Q1 2026.

  • Citadel Advisors reported no remaining Alpha Pro Tech position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 21,351 Alpha Pro Tech shares in Q1 2026, an estimated $105K.
  • Citadel Advisors first reported a position in Alpha Pro Tech in Q4 2014 and held it in 26 quarters.
  • Citadel Advisors's Alpha Pro Tech position peaked at $1.3M in Q2 2020.
  • 37 funds tracked by Wall St. Rank held Alpha Pro Tech as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.