Advantage Solutions Inc. (ADV) ownership: Top institutional holder: CastleKnight Management LP ($15.82M). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| CastleKnight Management LP | 748323.00 | $15.82M | 2026-03-31 |
| Leonard Green & Partners, L.P. | 618000.00 | $13.06M | 2026-03-31 |
| CVC Management Holdings II Ltd. | 611600.00 | $12.93M | 2026-03-31 |
| Atairos Partners GP, Inc. | 439430.00 | $9.29M | 2026-03-31 |
| VANGUARD GROUP INC | 7394204.00 | $6.51M | 2025-12-31 |
| BlackRock, Inc. | 281289.00 | $5.95M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 233632.00 | $4.94M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 157061.00 | $3.33M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-05-27 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.