Over the 90-day window ending February 19, 2026, IonQ's three dominant insider ownership positions are held by TenPercentOwner Partners 15, L.P. Nea (14.61Mn shares), TenPercentOwner Enterprise Associates 15, L.P. New (14.61Mn shares), Chief Scientist Christopher Monroe (3.90Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Enterprise Associates 15, L.P. New | 14,614,829 | 18 Nov, 2022 | |
| Partners 15, L.P. Nea | 14,614,829 | 18 Nov, 2022 | |
| Christopher Monroe | Chief Scientist | 3,897,970 | 17 Aug, 2023 |
| Harry L. You | 2,765,541 | 10 Jun, 2024 | |
| Jungsang Kim | Chief Technology Officer | 1,919,941 | 15 Mar, 2024 |
| Masi Niccolo De | President And Ceo | 1,164,896 | 15 Dec, 2025 |
| Craig H Barratt | 988,047 | 28 Aug, 2024 | |
| Blake Byers | 571,894 | 27 May, 2022 | |
| Thomas G. Kramer | Chief Financial Officer | 473,302 | 05 Sep, 2025 |
| Rima Alameddine | Chief Revenue Officer | 432,616 | 21 Nov, 2025 |
| Inder M Singh | Cfo & Coo | 428,201 | 12 Dec, 2025 |
| Peter Hume Chapman | Executive Chair | 390,329 | 20 Jun, 2025 |
| Laurie A. Babinski | General Counsel And Secretary | 246,889 | 05 Jun, 2023 |
| Scott Francis Millard | Chief Business Officer | 216,457 | 15 Dec, 2025 |
| William F Scannell | 140,560 | 18 Jun, 2025 | |
| Paul T Dacier | Cao And Clo And Secretary | 110,322 | 15 Dec, 2025 |
| John W Raymond | 86,763 | 19 Nov, 2025 | |
| Dean P. Acosta | Cca & Gro | 75,959 | 08 Oct, 2025 |
| Wendy Thomas | 61,145 | 13 Jun, 2025 | |
| Kathryn K. Chou | 60,839 | 23 Dec, 2025 | |
| Robert T. Cardillo | 37,436 | 16 Sep, 2025 | |
| Ronald D Bernal | 34,103 | 03 Jul, 2023 | |
| Gabrielle B Toledano | 10,001 | 24 Jul, 2025 | |
| Forest Baskett | 9,525 | 18 Nov, 2022 | |
| William J Jr Teuber | 6,413 | 13 Nov, 2025 | |
| Jim Frankola | 4,413 | 28 Aug, 2025 | |
| Mohamad Makhzoumi | 2,701 | 18 Nov, 2022 | |
| Scott D Sandell | 1,141 | 18 Nov, 2022 | |
| Anthony A. Jr. Florence | 1,047 | 18 Nov, 2022 | |
| Peter W. Sonsini | 70 | 18 Nov, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 22 Dec, 2025 | Kathryn K. Chou | Common Stock | D | 5,000 | $55.00 | 60,839 | D | S |
| 22 Dec, 2025 | Kathryn K. Chou | Common Stock | A | 5,000 | $4.61 | 65,839 | D | M |
| 11 Dec, 2025 | Paul T Dacier | Common Stock | D | 4,132 | $50.49 | 110,322 | D | F |
| 11 Dec, 2025 | Masi Niccolo De | Common Stock | D | 16,290 | $50.49 | 1,164,896 | D | F |
| 11 Dec, 2025 | Inder M Singh | Common Stock | D | 12,553 | $50.49 | 428,201 | D | F |
| 11 Dec, 2025 | Kathryn K. Chou | Common Stock | A | 20,000 | $4.61 | 80,839 | D | M |
| 11 Dec, 2025 | Kathryn K. Chou | Common Stock | D | 20,000 | $51.40 | 60,839 | D | S |
| 11 Dec, 2025 | Scott Francis Millard | Common Stock | D | 19,586 | $50.49 | 216,457 | D | F |
| 20 Nov, 2025 | Rima Alameddine | Common Stock | D | 100,000 | $46.89 | 432,616 | D | S |
| 17 Nov, 2025 | John W Raymond | Common Stock | A | 83,700 | $0.00 | 86,763 | D | A |
| 11 Nov, 2025 | William J Jr Teuber | Common Stock | A | 2,000 | $54.82 | 6,413 | D | P |
| 10 Nov, 2025 | Inder M Singh | Common Stock | A | 274,947 | $0.00 | 440,754 | D | A |
| 06 Oct, 2025 | Dean P. Acosta | Common Stock | A | 75,959 | $0.00 | 75,959 | D | A |
| 25 Sep, 2025 | John W Raymond | Common Stock | A | 3,063 | $0.00 | 3,063 | D | A |
| 12 Sep, 2025 | Robert T. Cardillo | Common Stock | A | 8,773 | $11.24 | 46,209 | D | M |
| 12 Sep, 2025 | Robert T. Cardillo | Common Stock | D | 8,773 | $50.52 | 37,436 | D | S |
| 11 Sep, 2025 | Paul T Dacier | Common Stock | D | 4,175 | $44.40 | 114,454 | D | S |
| 11 Sep, 2025 | Masi Niccolo De | Common Stock | D | 16,120 | $44.40 | 1,181,186 | D | S |
| 11 Sep, 2025 | Rima Alameddine | Common Stock | D | 19,976 | $44.40 | 532,616 | D | S |
| 10 Sep, 2025 | Robert T. Cardillo | Common Stock | A | 45,600 | $0.00 | 83,036 | D | A |