CP
IAS

CenterBook Partners’s Integral Ad Science IAS Stock Holding History

CenterBook Partners’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
-536,066
Closed -$5.45M – 615
2025
Q3 		$5.45M Sell
536,066
-1,180,536
-69% -$10.2M 0.27% 95
2025
Q2 		$14.3M Buy
1,716,602
+1,064,722
+163% +$8.12M 0.79% 24
2025
Q1 		$5.25M Sell
651,880
-367,164
-36% -$3.66M 0.33% 84
2024
Q4 		$10.6M Buy
1,019,044
+118,719
+13% +$1.3M 0.64% 33
2024
Q3 		$9.73M Sell
900,325
-243,287
-21% -$2.61M 0.6% 39
2024
Q2 		$11.1M Sell
1,143,612
-811,464
-42% -$7.77M 0.69% 22
2024
Q1 		$19.5M Buy
1,955,076
+1,607,554
+463% +$21.5M 1.35% 5
2023
Q4 		$5M Sell
347,522
-107,473
-24% -$1.44M 0.61% 36
2023
Q3 		$5.41M Buy
454,995
+289,341
+175% +$4.47M 0.67% 25
2023
Q2 		$2.98M Sell
165,654
-146,507
-47% -$2.47M 0.37% 87
2023
Q1 		$4.45M Buy
312,161
+292,305
+1,472% +$3.28M 0.63% 35
2022
Q4 		$175K Sell
19,856
-25,384
-56% -$215K 0.03% 367
2022
Q3 		$328K Buy
45,240
+31,100
+220% +$278K 0.06% 327
2022
Q2 		$140K Sell
14,140
-1,075
-7% -$12.8K 0.03% 367
2022
Q1 		$210K Buy
+15,215
New +$259K 0.07% 319

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

CenterBook Partners's IAS Position: Q4 2025 in Review

CenterBook Partners sold out of Integral Ad Science (IAS) in Q4 2025, closing a stake of 536,066 shares — an estimated $5.45M sold.

CenterBook Partners first reported a position in IAS in Q1 2022 and held it in 15 quarters. The position peaked at $19.5M in Q1 2024. 2 funds tracked by Wall St. Rank hold IAS as of Q4 2025.

  • CenterBook Partners reported no remaining Integral Ad Science position as of Q4 2025 after selling out during the quarter.
  • CenterBook Partners sold 536,066 Integral Ad Science shares in Q4 2025, an estimated $5.45M.
  • CenterBook Partners first reported a position in Integral Ad Science in Q1 2022 and held it in 15 quarters.
  • CenterBook Partners's Integral Ad Science position peaked at $19.5M in Q1 2024.
  • 2 funds tracked by Wall St. Rank held Integral Ad Science as of Q4 2025.

Based on CenterBook Partners's 13F filing for Q4 2025, filed 11 Feb 2026.