Simplex Trading
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Simplex Trading’s Aterian ATER Stock Holding History

Simplex Trading’s Portfolio ATER Stock Details ATER Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$8.15K Buy
+6,172
New +$6.4K ﹤0.01% 7845
2026
Q1 		– Sell
-1,258
Closed -$874 – 9015
2025
Q4 		$874 Sell
1,258
-5,539
-81% -$4.84K ﹤0.01% 8057
2025
Q3 		$7K Buy
6,797
+278
+4% +$325 ﹤0.01% 8077
2025
Q2 		$10K Sell
6,519
-1,926
-23% -$3.28K ﹤0.01% 7292
2025
Q1 		$17K Sell
8,445
-16,734
-66% -$37.3K ﹤0.01% 6689
2024
Q4 		$60K Sell
25,179
-9,331
-27% -$24.8K ﹤0.01% 5681
2024
Q3 		$99K Buy
34,510
+13,979
+68% +$41.8K ﹤0.01% 5236
2024
Q2 		$57K Buy
20,531
+19,167
+1,405% +$47.7K ﹤0.01% 5940
2024
Q1 		$3K Buy
1,364
+1,140
+509% +$4.85K ﹤0.01% 8208
2023
Q4 		$0 Sell
224
-1,553
-87% -$5.99K ﹤0.01% 8734
2023
Q3 		$6K Sell
1,777
-833
-32% -$4.31K ﹤0.01% 7500
2023
Q2 		$14K Buy
2,610
+2,602
+32,525% +$20.2K ﹤0.01% 7076
2023
Q1 		$0 Sell
8
-3,562
-100% -$47.7K ﹤0.01% 8968
2022
Q4 		$32K Buy
3,570
+3,553
+20,900% +$44.5K ﹤0.01% 6365
2022
Q3 		$0 Sell
17
-2,068
-99% -$60.2K ﹤0.01% 9852
2022
Q2 		$54K Buy
+2,085
New +$92.2K ﹤0.01% 6386
2022
Q1 		– Sell
-3,763
Closed -$138K – 10334
2021
Q4 		$185K Buy
+3,763
New +$278K ﹤0.01% 5310
2021
Q2 		– Sell
-979
Closed -$229K – 9999
2021
Q1 		$346K Buy
+979
New +$377K ﹤0.01% 3946

Other funds holding ATER

Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BCM
Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Simplex Trading's ATER Position: Q2 2026 in Review

Simplex Trading opened a new position in Aterian (ATER) in Q2 2026: 6,172 shares worth $8.15K. The stake represents ﹤0.01% of the portfolio and ranks #7845 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ATER as recently as Q4 2025.

Simplex Trading first reported a position in ATER in Q1 2021 and has held it in 18 quarters since. The position peaked at $346K in Q1 2021. 24 funds tracked by Wall St. Rank hold ATER as of Q2 2026.

  • Simplex Trading held 6,172 shares of Aterian worth $8.15K as of Q2 2026.
  • Aterian was a new Simplex Trading position in Q2 2026.
  • Aterian made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #7845 holding.
  • Simplex Trading first reported a position in Aterian in Q1 2021 and has held it in 18 quarters since.
  • Simplex Trading's Aterian position peaked at $346K in Q1 2021.
  • 24 funds tracked by Wall St. Rank held Aterian as of Q2 2026.

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