Millennium Management’s Alphatec Holdings ATEC Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$30.6M Buy
2,809,545
+583,618
+26% +$8.5M 0.02% 1212
2025
Q4
$46.8M Buy
2,225,927
+1,658,349
+292% +$30.7M 0.03% 866
2025
Q3
$8.25M Buy
567,578
+82,622
+17% +$1.15M 0.01% 2587
2025
Q2
$5.38M Buy
484,956
+149,917
+45% +$1.72M ﹤0.01% 2908
2025
Q1
$3.4M Sell
335,039
-728,884
-69% -$7.82M ﹤0.01% 3262
2024
Q4
$9.77M Sell
1,063,923
-3,368,560
-76% -$26.9M 0.01% 2205
2024
Q3
$24.6M Buy
4,432,483
+1,034,081
+30% +$7.94M 0.02% 1359
2024
Q2
$35.5M Sell
3,398,402
-1,760,524
-34% -$20.5M 0.03% 1027
2024
Q1
$71.1M Buy
5,158,926
+2,637,903
+105% +$39.1M 0.06% 634
2023
Q4
$38.1M Sell
2,521,023
-3,188,713
-56% -$38.1M 0.04% 996
2023
Q3
$74.1M Buy
5,709,736
+2,601,080
+84% +$40.7M 0.08% 501
2023
Q2
$55.9M Sell
3,108,656
-1,284,685
-29% -$20M 0.06% 656
2023
Q1
$68.5M Buy
4,393,341
+1,625,454
+59% +$23M 0.08% 504
2022
Q4
$34.2M Buy
2,767,887
+1,410,693
+104% +$14.2M 0.04% 1025
2022
Q3
$11.9M Buy
1,357,194
+303,735
+29% +$2.4M 0.01% 1919
2022
Q2
$6.89M Sell
1,053,459
-1,312,280
-55% -$12.1M 0.01% 2466
2022
Q1
$27.2M Buy
2,365,739
+481,038
+26% +$5.2M 0.03% 1095
2021
Q4
$21.5M Sell
1,884,701
-268,725
-12% -$3.17M 0.02% 1377
2021
Q3
$26.3M Buy
2,153,426
+1,721,570
+399% +$24M 0.03% 1083
2021
Q2
$6.62M Buy
431,856
+190,288
+79% +$2.94M 0.01% 2392
2021
Q1
$3.81M Sell
241,568
-1,211,917
-83% -$19.1M 0.01% 2876
2020
Q4
$21.1M Buy
1,453,485
+1,173,724
+420% +$12.4M 0.03% 1024
2020
Q3
$1.86K Buy
279,761
+184,561
+194% +$1.04M ﹤0.01% 2654
2020
Q2
$447K Buy
+95,200
New +$420K ﹤0.01% 3467
2020
Q1
Sell
-694,106
Closed -$4.92M 3826
2019
Q4
$4.92M Buy
694,106
+12,944
+2% +$83.1K 0.01% 1957
2019
Q3
$3.42M Buy
681,162
+613,766
+911% +$3.19M 0.01% 2081
2019
Q2
$306K Sell
67,396
-41,917
-38% -$156K ﹤0.01% 3532
2019
Q1
$290K Buy
+109,313
New +$212K ﹤0.01% 3564
2018
Q4
Sell
-66,630
Closed -$225K 3733
2018
Q3
$225K Buy
66,630
+38,301
+135% +$121K ﹤0.01% 3594
2018
Q2
$84K Buy
28,329
+2,720
+11% +$9.65K ﹤0.01% 3670
2018
Q1
$82K Buy
+25,609
New +$83.2K ﹤0.01% 3495
2016
Q1
Sell
-1,539
Closed -$6K 3250
2015
Q4
$6K Buy
+1,539
New +$5.2K ﹤0.01% 3356
2015
Q3
Sell
-2,435
Closed -$40K 3441
2015
Q2
$40K Sell
2,435
-1,692
-41% -$28.2K ﹤0.01% 3229
2015
Q1
$72K Sell
4,127
-4,384
-52% -$73.1K ﹤0.01% 3437
2014
Q4
$144K Buy
8,511
+1,919
+29% +$32.7K ﹤0.01% 3717
2014
Q3
$134K Buy
6,592
+3,021
+85% +$55.5K ﹤0.01% 3504
2014
Q2
$70K Buy
+3,571
New +$60K ﹤0.01% 3284

Other funds holding ATEC