Integral Ad Science HoldingIAS
13F holders, Q4 2024 (December 31)165holders −7
27new positions
41sold out
4famous investors
$10.44avg. 13F price*
At the end of Q4 2024, 165 institutions reported holding Integral Ad Science Holding (IAS) in their 13F filings, down 7 from Q3 2024. 27 opened new positions and 41 sold out. The largest holders were Vista Equity Partners Management, LLC ($678.7M), Atlas Venture Advisors, Inc. ($237.2M) and Vanguard Group Inc. ($94.5M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Integral Ad Science Holding
- CUSIP
- 45828L108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 27 | $80.2M |
| Exits | 41 | $24.6M |
All 13F filers, Q3 2024 → Q4 2024: 10,287,406 shares bought and 9,156,696 shares sold, net +1,130,710 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 165 holders
| Vista Equity Partners Management, LLC | 40.44% | No change | 65,010,001 | $678.7M |
| Atlas Venture Advisors, Inc. | 51.19% | No change | 22,722,770 | $237.2M |
| Vanguard Group Inc. | 0.00% | Add +2.3% | 9,048,546 | $94.5M |
| Sunriver Management LLC | 9.11% | Reduce -4.6% | 7,291,034 | $76.1M |
| BlackRock, Inc. | 0.00% | Add +0.6% | 6,039,473 | $63.1M |
| P2 Capital Partners, LLC | 8.53% | Reduce -34.6% | 4,810,000 | $50.2M |
| Alyeska Investment Group, L.P. | 0.16% | New | 3,979,205 | $41.5M |
| Dimensional Fund Advisors LP | 0.01% | Add +18.1% | 3,789,996 | $39.6M |
| Clearbridge Investments, LLC | 0.02% | Reduce -6.4% | 2,729,420 | $28.5M |
| Ararat Capital Management LP | 9.51% | Add +13.4% | 2,281,912 | $23.8M |
| TimesSquare Capital Management, LLC | 0.30% | Reduce -27.9% | 2,000,173 | $20.9M |
| Rubric Capital Management LP | 0.37% | New | 1,973,870 | $20.6M |
| Nuveen Asset Management, LLC | 0.01% | Add +0.8% | 1,920,523 | $20.1M |
| Geode Capital Management, LLC | 0.00% | Add +0.8% | 1,848,738 | $19.3M |
| Aberdeen Group plc | 0.03% | Reduce -17.6% | 1,770,827 | $18.5M |
| State Street Corp. | 0.00% | Add +1.0% | 1,590,057 | $16.6M |
| Jacobs Levy Equity Management, Inc. | 0.05% | Reduce -15.1% | 1,421,237 | $14.8M |
| Ameriprise Financial Inc. | 0.00% | Reduce -3.1% | 1,102,299 | $11.5M |
| CenterBook Partners LP | 0.64% | Add +13.2% | 1,019,044 | $10.6M |
| Frontier Capital Management Co. LLC | 0.10% | Reduce -0.2% | 997,511 | $10.4M |
| Invenomic Capital Management LP | 0.53% | Add +52.9% | 895,061 | $9.3M |
| Citadel Advisors | 0.01% | Reduce -33.4% | 706,343 | $7.4M |
| Northern Trust Corp. | 0.00% | Add +11.0% | 677,204 | $7.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.3% | 603,848 | $6.3M |
| Morgan Stanley | 0.00% | Reduce -36.0% | 577,732 | $6.0M |
| Deutsche Bank AG | 0.00% | Reduce -3.0% | 531,664 | $5.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +33.4% | 438,591 | $4.6M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | New | 401,000 | $4.2M |
| Clearline Capital LP | 0.52% | New | 378,252 | $3.9M |
| UBS Group AG | 0.00% | Add +32.4% | 342,078 | $3.6M |
| Bank of America Corp. | 0.00% | Reduce -6.8% | 339,367 | $3.5M |
| Atom Investors LP | 0.41% | Reduce -6.1% | 317,544 | $3.3M |
| Rice Hall James & Associates, LLC | 0.18% | Add +89.2% | 314,129 | $3.3M |
| Repertoire Partners LP | 6.41% | Add +83.7% | 284,707 | $3.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -62.9% | 266,327 | $2.8M |
| Bank of New York Mellon Corp | 0.00% | Add +13.1% | 251,091 | $2.6M |
| Janus Henderson Group PLC | 0.00% | Reduce -32.5% | 242,559 | $2.5M |
| 272 Capital LP | 2.26% | Reduce -12.9% | 229,137 | $2.4M |
| Renaissance Group LLC | 0.09% | Add +7.1% | 208,963 | $2.2M |
| Renaissance Technologies | 0.00% | Add +1.7% | 207,600 | $2.2M |
| PDT Partners, LLC | 0.19% | Reduce -28.7% | 202,032 | $2.1M |
| HERALD INVESTMENT MANAGEMENT Ltd | 0.34% | No change | 200,000 | $2.1M |
| Monimus Capital Management, LP | 1.90% | — | 193,482 | $2.0M |
| Horrell Capital Management, Inc. | 0.58% | Add +26.7% | 190,000 | $2.0M |
| Circumference Group LLC | 1.85% | Add +26.7% | 190,000 | $2.0M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 186,352 | $1.9M |
| First Trust Advisors LP | 0.00% | Add +295.6% | 171,378 | $1.8M |
| one8zero8, LLC | 0.37% | — | 163,050 | $1.7M |
| Swiss National Bank | 0.00% | Add +12.9% | 158,700 | $1.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +42.7% | 155,010 | $1.6M |
| Vestcor Inc | 0.05% | New | 150,000 | $1.6M |
| Barclays PLC | 0.00% | Add +11.3% | 142,137 | $1.5M |
| Essex Investment Management Co. LLC | 0.24% | Reduce -12.9% | 129,301 | $1.3M |
| Boothbay Fund Management, LLC | 0.04% | Reduce -33.0% | 117,707 | $1.2M |
| Franklin Resources Inc. | 0.00% | Reduce -1.1% | 109,192 | $1.1M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -27.4% | 107,945 | $1.1M |
| Rhumbline Advisers | 0.00% | Reduce -1.2% | 107,450 | $1.1M |
| Factor Wealth Management LTD | 0.34% | — | 99,324 | $1.0M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -24.1% | 94,143 | $983K |
| Susquehanna International Group, LLP | 0.00% | Reduce -3.2% | 87,966 | $918K |
| Wells Fargo & Company | 0.00% | Add +9.8% | 85,089 | $888K |
| Legal & General Group Plc | 0.00% | Add +19.9% | 83,857 | $875K |
| State Board of Administration of Florida Retirement System | 0.00% | Add +2.7% | 82,976 | $866K |
| Algert Global LLC | 0.02% | Reduce -79.2% | 82,779 | $864K |
| Quinn Opportunity Partners LLC | 0.06% | New | 80,000 | $835K |
| Raymond James Financial Inc. | 0.00% | — | 77,314 | $807K |
| Alliancebernstein L.P. | 0.00% | No change | 76,580 | $799K |
| California State Teachers Retirement System | 0.00% | Add +9.6% | 74,874 | $782K |
| Canada Pension Plan Investment Board | 0.00% | No change | 72,000 | $752K |
| Eisler Capital Management Ltd. | 0.02% | — | 70,000 | $740K |
| Citigroup Inc. | 0.00% | Add +25.2% | 66,526 | $695K |
| NINE MASTS CAPITAL Ltd | 0.13% | New | 64,291 | $671K |
| Millennium Management | 0.00% | New | 64,124 | $669K |
| Jennison Associates LLC | 0.00% | Add +3.3% | 63,538 | $663K |
| Cantor Fitzgerald, L. P. | 0.02% | New | 61,000 | $637K |
| Tejara Capital Ltd | 0.41% | New | 60,000 | $626K |
| Nexpoint Asset Management, L.P. | 0.07% | New | 53,661 | $560K |
| AQR Capital Management | 0.00% | Reduce -68.3% | 53,445 | $558K |
| Invesco Ltd. | 0.00% | Add +16.7% | 50,544 | $528K |
| Intech Investment Management LLC | 0.01% | Add +168.0% | 49,444 | $516K |
| MetLife Investment Management, LLC | 0.00% | Add +10.1% | 44,921 | $469K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.6% | 41,519 | $433K |
| Focus Partners Wealth | 0.00% | Reduce -33.0% | 40,172 | $419K |
| Militia Capital Partners, LP | 0.40% | — | 40,000 | $418K |
| Legato Capital Management LLC | 0.05% | Reduce -23.9% | 38,725 | $404K |
| Voya Investment Management LLC | 0.00% | Reduce -11.8% | 38,520 | $402K |
| LMR Partners LLP | 0.01% | New | 38,079 | $398K |
| EntryPoint Capital, LLC | 0.16% | New | 37,083 | $387K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -2.8% | 36,633 | $382K |
| Corebridge Financial, Inc. | 0.00% | Reduce -6.1% | 36,288 | $379K |
| State of Wisconsin Investment Board | 0.00% | Add +225.1% | 34,390 | $359K |
| Victory Capital Management Inc. | 0.00% | Add +8.9% | 32,880 | $343K |
| Envestnet Asset Management Inc. | 0.00% | Add +7.4% | 31,807 | $332K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -88.5% | 31,417 | $328K |
| SG Americas Securities, LLC | 0.00% | Reduce -18.7% | 30,690 | $320K |
| Harvest Management LLC | 0.16% | New | 30,000 | $313K |
| T. Rowe Price Associates Inc. | 0.00% | Add +17.1% | 27,997 | $293K |
| Oppenheimer & Co. Inc. | 0.00% | Add +8.0% | 28,040 | $293K |
| Stoneridge Investment Partners LLC | 0.10% | Add +139.7% | 27,808 | $290K |
| Centiva Capital, LP | 0.01% | Reduce -32.2% | 25,000 | $261K |
"% of holder's portfolio" is IAS's weight in each manager's 13F, not the share of Integral Ad Science Holding the manager owns.