BlackRock’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 |
-6,757,261
| Closed | -$68.7M | – | 5585 |
|
|
2025
Q3 | $68.7M | Buy |
6,757,261
+89,656
| +1% | +$776K | ﹤0.01% | 2311 |
|
|
2025
Q2 | $55.4M | Buy |
6,667,605
+663,535
| +11% | +$5.06M | ﹤0.01% | 2389 |
|
|
2025
Q1 | $48.4M | Sell |
6,004,070
-35,403
| -0.6% | -$353K | ﹤0.01% | 2393 |
|
|
2024
Q4 | $63.1M | Buy |
6,039,473
+34,084
| +0.6% | +$374K | ﹤0.01% | 2318 |
|
|
2024
Q3 | $64.9M | Buy |
6,005,389
+98,207
| +2% | +$1.06M | ﹤0.01% | 2324 |
|
|
2024
Q2 | $57.4M | Buy |
5,907,182
+473,823
| +9% | +$4.53M | ﹤0.01% | 2337 |
|
|
2024
Q1 | $54.2M | Buy |
5,433,359
+992,569
| +22% | +$13.2M | ﹤0.01% | 2402 |
|
|
2023
Q4 | $63.9M | Buy |
4,440,790
+481,630
| +12% | +$6.45M | ﹤0.01% | 2333 |
|
|
2023
Q3 | $47.1M | Buy |
3,959,160
+647,671
| +20% | +$10M | ﹤0.01% | 2429 |
|
|
2023
Q2 | $59.5M | Buy |
3,311,489
+839,103
| +34% | +$14.2M | ﹤0.01% | 2382 |
|
|
2023
Q1 | $35.3M | Sell |
2,472,386
-10,539
| -0.4% | -$118K | ﹤0.01% | 2671 |
|
|
2022
Q4 | $21.8M | Buy |
2,482,925
+218,673
| +10% | +$1.86M | ﹤0.01% | 2989 |
|
|
2022
Q3 | $16.4M | Buy |
2,264,252
+337,053
| +17% | +$3.01M | ﹤0.01% | 3140 |
|
|
2022
Q2 | $19.1M | Buy |
1,927,199
+323,635
| +20% | +$3.86M | ﹤0.01% | 3115 |
|
|
2022
Q1 | $22.1M | Buy |
1,603,564
+513,654
| +47% | +$8.75M | ﹤0.01% | 3109 |
|
|
2021
Q4 | $24.2M | Sell |
1,089,910
-26,952
| -2% | -$614K | ﹤0.01% | 3168 |
|
|
2021
Q3 | $23M | Buy |
1,116,862
+866,862
| +347% | +$17.1M | ﹤0.01% | 3187 |
|
|
2021
Q2 | $5.15M | Buy |
+250,000
| New | +$5.14M | ﹤0.01% | 3867 |
|
Other funds holding IAS
BlackRock's IAS Position: Q4 2025 in Review
BlackRock sold out of Integral Ad Science (IAS) in Q4 2025, closing a stake of 6,757,261 shares — an estimated $68.7M sold.
BlackRock first reported a position in IAS in Q2 2021 and held it in 18 quarters. The position peaked at $68.7M in Q3 2025. 2 funds tracked by Wall St. Rank hold IAS as of Q4 2025.
- BlackRock reported no remaining Integral Ad Science position as of Q4 2025 after selling out during the quarter.
- BlackRock sold 6,757,261 Integral Ad Science shares in Q4 2025, an estimated $68.7M.
- BlackRock first reported a position in Integral Ad Science in Q2 2021 and held it in 18 quarters.
- BlackRock's Integral Ad Science position peaked at $68.7M in Q3 2025.
- 2 funds tracked by Wall St. Rank held Integral Ad Science as of Q4 2025.
Based on BlackRock's 13F filing for Q4 2025, filed 12 Feb 2026.