Jane Street’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
Q2
$228K Sell
26,385
-852,164
-97% -$7.76M ﹤0.01% 9816
2026
Q1
$9.56M Buy
878,549
+301,339
+52% +$4.39M ﹤0.01% 2595
2025
Q4
$12.1M Buy
577,210
+175,953
+44% +$3.26M ﹤0.01% 2091
2025
Q3
$5.83M Buy
401,257
+315,239
+366% +$4.39M ﹤0.01% 3195
2025
Q2
$955K Sell
86,018
-52,118
-38% -$599K ﹤0.01% 5703
2025
Q1
$1.4M Sell
138,136
-7,664
-5% -$82.3K ﹤0.01% 4958
2024
Q4
$1.34M Sell
145,800
-144,243
-50% -$1.15M ﹤0.01% 4857
2024
Q3
$1.61M Buy
290,043
+121,982
+73% +$936K ﹤0.01% 4925
2024
Q2
$1.76M Buy
168,061
+57,467
+52% +$669K ﹤0.01% 4724
2024
Q1
$1.53M Sell
110,594
-9,242
-8% -$137K ﹤0.01% 4622
2023
Q4
$1.81M Buy
+119,836
New +$1.43M ﹤0.01% 4503
2023
Q3
Sell
-110,095
Closed -$1.72M 8594
2023
Q2
$1.98M Buy
110,095
+58,648
+114% +$913K ﹤0.01% 4174
2023
Q1
$803K Sell
51,447
-143,788
-74% -$2.03M ﹤0.01% 5429
2022
Q4
$2.41M Buy
195,235
+124,596
+176% +$1.26M ﹤0.01% 3571
2022
Q3
$618K Buy
+70,639
New +$559K ﹤0.01% 6293
2022
Q2
Sell
-40,696
Closed -$375K 9618
2022
Q1
$469K Buy
40,696
+19,384
+91% +$210K ﹤0.01% 7609
2021
Q4
$243K Buy
21,312
+10,085
+90% +$119K ﹤0.01% 8521
2021
Q3
$137K Buy
+11,227
New +$157K ﹤0.01% 9116
2021
Q1
Sell
-32,174
Closed -$467K 9059
2020
Q4
$467K Buy
+32,174
New +$340K ﹤0.01% 5843
2019
Q3
Sell
-92,030
Closed -$418K 5034
2019
Q2
$418K Buy
+92,030
New +$343K ﹤0.01% 3798

Other funds holding ATEC

Jane Street's ATEC Position: Q2 2026 in Review

Jane Street reduced its Alphatec Holdings (ATEC) stake by 97% in Q2 2026, selling an estimated $7.76M and leaving 26,385 shares worth $228K. The position accounts for ﹤0.01% of the portfolio, ranked #9816.

Jane Street first reported a position in ATEC in Q2 2019 and has held it in 20 quarters since. The position peaked at $12.1M in Q4 2025. 268 funds tracked by Wall St. Rank hold ATEC as of Q2 2026.

  • Jane Street held 26,385 shares of Alphatec Holdings worth $228K as of Q2 2026.
  • Jane Street sold 852,164 Alphatec Holdings shares in Q2 2026, an estimated $7.76M.
  • Alphatec Holdings made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9816 holding.
  • Jane Street first reported a position in Alphatec Holdings in Q2 2019 and has held it in 20 quarters since.
  • Jane Street's Alphatec Holdings position peaked at $12.1M in Q4 2025.
  • 268 funds tracked by Wall St. Rank held Alphatec Holdings as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.