Jane Street’s Integral Ad Science IAS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q4 | – | Sell |
-160,128
| Closed | -$1.63M | – | 11687 |
|
|
2025
Q3 | $1.63M | Buy |
160,128
+105,495
| +193% | +$914K | ﹤0.01% | 5317 |
|
|
2025
Q2 | $454K | Sell |
54,633
-191,796
| -78% | -$1.46M | ﹤0.01% | 7108 |
|
|
2025
Q1 | $1.99M | Buy |
+246,429
| New | +$2.46M | ﹤0.01% | 4358 |
|
|
2024
Q4 | – | Sell |
-46,675
| Closed | -$505K | – | 9917 |
|
|
2024
Q3 | $505K | Sell |
46,675
-136,994
| -75% | -$1.47M | ﹤0.01% | 7165 |
|
|
2024
Q2 | $1.79M | Buy |
183,669
+130,562
| +246% | +$1.25M | ﹤0.01% | 4689 |
|
|
2024
Q1 | $529K | Sell |
53,107
-118,695
| -69% | -$1.58M | ﹤0.01% | 6572 |
|
|
2023
Q4 | $2.47M | Buy |
171,802
+155,318
| +942% | +$2.08M | ﹤0.01% | 3949 |
|
|
2023
Q3 | $196K | Sell |
16,484
-12,442
| -43% | -$192K | ﹤0.01% | 7633 |
|
|
2023
Q2 | $520K | Buy |
28,926
+17,583
| +155% | +$297K | ﹤0.01% | 6262 |
|
|
2023
Q1 | $162K | Sell |
11,343
-30,179
| -73% | -$339K | ﹤0.01% | 7967 |
|
|
2022
Q4 | $365K | Buy |
+41,522
| New | +$352K | ﹤0.01% | 6673 |
|
|
2022
Q2 | – | Sell |
-47,661
| Closed | -$658K | – | 10149 |
|
|
2022
Q1 | $658K | Buy |
47,661
+11,559
| +32% | +$197K | ﹤0.01% | 6978 |
|
|
2021
Q4 | $802K | Buy |
+36,102
| New | +$822K | ﹤0.01% | 6350 |
|
|
2021
Q3 | – | Sell |
-38,772
| Closed | -$798K | – | 10266 |
|
|
2021
Q2 | $798K | Buy |
+38,772
| New | +$798K | ﹤0.01% | 6323 |
|
Other funds holding IAS
Jane Street's IAS Position: Q4 2025 in Review
Jane Street sold out of Integral Ad Science (IAS) in Q4 2025, closing a stake of 160,128 shares — an estimated $1.63M sold.
Jane Street first reported a position in IAS in Q2 2021 and held it in 14 quarters. The position peaked at $2.47M in Q4 2023. 2 funds tracked by Wall St. Rank hold IAS as of Q4 2025.
- Jane Street reported no remaining Integral Ad Science position as of Q4 2025 after selling out during the quarter.
- Jane Street sold 160,128 Integral Ad Science shares in Q4 2025, an estimated $1.63M.
- Jane Street first reported a position in Integral Ad Science in Q2 2021 and held it in 14 quarters.
- Jane Street's Integral Ad Science position peaked at $2.47M in Q4 2023.
- 2 funds tracked by Wall St. Rank held Integral Ad Science as of Q4 2025.
Based on Jane Street's 13F filing for Q4 2025, filed 12 Feb 2026.