Millennium Management’s System1 SST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$98.5K Sell
32,619
-2,830
-8% -$9.52K ﹤0.01% 5344
2025
Q4
$139K Sell
35,449
-3,112
-8% -$16.1K ﹤0.01% 5565
2025
Q3
$271K Sell
38,561
-4,217
-10% -$29.1K ﹤0.01% 5384
2025
Q2
$237K Buy
+42,778
New +$190K ﹤0.01% 5286
2025
Q1
Sell
-11,285
Closed -$101K 6381
2024
Q4
$101K Sell
11,285
-8,200
-42% -$82.5K ﹤0.01% 5476
2024
Q3
$218K Sell
19,485
-1,522
-7% -$19.5K ﹤0.01% 5393
2024
Q2
$319K Buy
21,007
+14,903
+244% +$251K ﹤0.01% 4877
2024
Q1
$120K Buy
+6,104
New +$104K ﹤0.01% 5534
2023
Q2
Sell
-1,939
Closed -$83K 6665
2023
Q1
$83K Sell
1,939
-6,795
-78% -$301K ﹤0.01% 5482
2022
Q4
$410K Buy
8,734
+3,745
+75% +$192K ﹤0.01% 4881
2022
Q3
$314K Sell
4,989
-10,370
-68% -$904K ﹤0.01% 5324
2022
Q2
$1.07M Sell
15,359
-22,745
-60% -$2.87M ﹤0.01% 4301
2022
Q1
$5.53M Sell
38,104
-151,269
-80% -$18.6M ﹤0.01% 2825
2021
Q4
$18.9M Buy
189,373
+18,123
+11% +$1.8M 0.01% 1490
2021
Q3
$17M Buy
171,250
+26,409
+18% +$2.61M 0.01% 1473
2021
Q2
$14.3M Buy
144,841
+8,527
+6% +$847K 0.01% 1516
2021
Q1
$13.6M Sell
136,314
-108,499
-44% -$11.6M 0.01% 1469
2020
Q4
$26.4M Buy
244,813
+70,619
+41% +$7.17M 0.02% 862
2020
Q3
$17.7K Buy
+174,194
New +$17.7M 0.02% 861

Other funds holding SST

Millennium Management's SST Position: Q1 2026 in Review

Millennium Management reduced its System1 (SST) stake by 8% in Q1 2026, selling an estimated $9.52K and leaving 32,619 shares worth $98.5K. The position accounts for ﹤0.01% of the portfolio, ranked #5344.

Millennium Management first reported a position in SST in Q3 2020 and has held it in 19 quarters since. The position peaked at $26.4M in Q4 2020. 25 funds tracked by Wall St. Rank hold SST as of Q1 2026.

  • Millennium Management held 32,619 shares of System1 worth $98.5K as of Q1 2026.
  • Millennium Management sold 2,830 System1 shares in Q1 2026, an estimated $9.52K.
  • System1 made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #5344 holding.
  • Millennium Management first reported a position in System1 in Q3 2020 and has held it in 19 quarters since.
  • Millennium Management's System1 position peaked at $26.4M in Q4 2020.
  • 25 funds tracked by Wall St. Rank held System1 as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.