Vanguard Group
IAS

Vanguard Group’s Integral Ad Science IAS Stock Holding History

Vanguard Group’s Portfolio IAS Stock Details IAS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-9,043,380
Closed -$92M – 4365
2025
Q3 		$92M Sell
9,043,380
-212,517
-2% -$1.84M ﹤0.01% 1890
2025
Q2 		$76.9M Buy
9,255,897
+165,668
+2% +$1.26M ﹤0.01% 1936
2025
Q1 		$73.3M Buy
9,090,229
+41,683
+0.5% +$416K ﹤0.01% 1930
2024
Q4 		$94.5M Buy
9,048,546
+205,562
+2% +$2.25M ﹤0.01% 1901
2024
Q3 		$95.6M Buy
8,842,984
+125,407
+1% +$1.35M ﹤0.01% 1890
2024
Q2 		$84.7M Buy
8,717,577
+44,348
+0.5% +$424K ﹤0.01% 1909
2024
Q1 		$86.5M Buy
8,673,229
+566,982
+7% +$7.57M ﹤0.01% 1941
2023
Q4 		$117M Buy
8,106,247
+780,469
+11% +$10.4M ﹤0.01% 1785
2023
Q3 		$87.1M Buy
7,325,778
+966,280
+15% +$14.9M ﹤0.01% 1880
2023
Q2 		$114M Buy
6,359,498
+937,887
+17% +$15.8M ﹤0.01% 1782
2023
Q1 		$77.4M Buy
5,421,611
+659,092
+14% +$7.4M ﹤0.01% 1950
2022
Q4 		$41.9M Buy
4,762,519
+9,754
+0.2% +$82.8K ﹤0.01% 2266
2022
Q3 		$34.4M Buy
4,752,765
+2,070,907
+77% +$18.5M ﹤0.01% 2367
2022
Q2 		$26.6M Buy
2,681,858
+626,713
+30% +$7.48M ﹤0.01% 2505
2022
Q1 		$28.4M Buy
2,055,145
+138,315
+7% +$2.36M ﹤0.01% 2589
2021
Q4 		$42.6M Buy
1,916,830
+53,954
+3% +$1.23M ﹤0.01% 2448
2021
Q3 		$38.4M Buy
1,862,876
+1,764,282
+1,789% +$34.8M ﹤0.01% 2503
2021
Q2 		$2.03M Buy
+98,594
New +$2.03M ﹤0.01% 3962

Other funds holding IAS

IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return
HNB
Huntington National Bank Columbus, Ohio $18.1B AUM 24.69% 1-Year Est. Return

Vanguard Group's IAS Position: Q4 2025 in Review

Vanguard Group sold out of Integral Ad Science (IAS) in Q4 2025, closing a stake of 9,043,380 shares — an estimated $92M sold.

Vanguard Group first reported a position in IAS in Q2 2021 and held it in 18 quarters. The position peaked at $117M in Q4 2023. 2 funds tracked by Wall St. Rank hold IAS as of Q4 2025.

  • Vanguard Group reported no remaining Integral Ad Science position as of Q4 2025 after selling out during the quarter.
  • Vanguard Group sold 9,043,380 Integral Ad Science shares in Q4 2025, an estimated $92M.
  • Vanguard Group first reported a position in Integral Ad Science in Q2 2021 and held it in 18 quarters.
  • Vanguard Group's Integral Ad Science position peaked at $117M in Q4 2023.
  • 2 funds tracked by Wall St. Rank held Integral Ad Science as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.