OCM
IAS

Osterweis Capital Management’s Integral Ad Science IAS Stock Holding History

Osterweis Capital Management’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
Q1 		– Sell
-14,285
Closed -$149K – 347
2024
Q4 		$149K Hold
14,285
– – 0.01% 143
2024
Q3 		$154K Hold
14,285
– – 0.01% 140
2024
Q2 		$139K Sell
14,285
-1,400
-9% -$13.4K 0.01% 143
2024
Q1 		$156K Sell
15,685
-165
-1% -$2.2K 0.01% 136
2023
Q4 		$228K Hold
15,850
– – 0.01% 124
2023
Q3 		$188K Hold
15,850
– – 0.01% 129
2023
Q2 		$285K Buy
+15,850
New +$268K 0.02% 124

Other funds holding IAS

VEPM
Vista Equity Partners Management San Francisco, California $42.7M AUM 16.65% 1-Year Est. Return
AVA
Atlas Venture Advisors Boston, Massachusetts $143M AUM 25.68% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SM
Sunriver Management Greenwich, Connecticut $591M AUM 2.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PCP
P2 Capital Partners New York $210M AUM 1.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
CM
Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

Osterweis Capital Management's IAS Position: Q1 2025 in Review

Osterweis Capital Management sold out of Integral Ad Science (IAS) in Q1 2025, closing a stake of 14,285 shares — an estimated $149K sold.

Osterweis Capital Management first reported a position in IAS in Q2 2023 and held it in 7 quarters. The position peaked at $285K in Q2 2023. 187 funds tracked by Wall St. Rank hold IAS as of Q1 2025.

  • Osterweis Capital Management reported no remaining Integral Ad Science position as of Q1 2025 after selling out during the quarter.
  • Osterweis Capital Management sold 14,285 Integral Ad Science shares in Q1 2025, an estimated $149K.
  • Osterweis Capital Management first reported a position in Integral Ad Science in Q2 2023 and held it in 7 quarters.
  • Osterweis Capital Management's Integral Ad Science position peaked at $285K in Q2 2023.
  • 187 funds tracked by Wall St. Rank held Integral Ad Science as of Q1 2025.

Based on Osterweis Capital Management's 13F filing for Q1 2025, filed 14 May 2025.