Blackstone Secured Lending Fund's three largest insider shareholders as of May 14, 2026 are Robert J Bass (Other, 21.17K shares), Katherine Rubenstein (Chief Operating Officer, 5.77K shares), Carlos Whitaker (President, 3.90K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert J Bass | - | 21,167 | 0 | 07 Oct, 2025 |
| Katherine Rubenstein | Chief Operating Officer | 5,771 | 0 | 11 Mar, 2026 |
| Carlos Whitaker | President | 3,895 | 0 | 30 May, 2023 |
| James Frederic Clark | - | 2,750 | 0 | 12 Mar, 2026 |
| Lucie Enns | - | 1,045 | 0 | 16 Mar, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 13 Mar, 2026 | Lucie Enns | Common Shares of Beneficial Interest | A | 1,045 | $23.48 | 1,045 | D | P |
| 11 Mar, 2026 | James Frederic Clark | Common Shares of Beneficial Interest | A | 750 | $23.78 | 2,750 | D | P |
| 10 Mar, 2026 | Katherine Rubenstein | Common Shares of Beneficial Interest | A | 1,035 | $24.08 | 5,771 | D | P |
| 11 Nov, 2025 | James Frederic Clark | Common Shares of Beneficial Interest | A | 2,000 | $26.68 | 2,000 | D | P |
| 06 Oct, 2025 | Robert J Bass | Common Shares of Beneficial Interest | A | 3,760 | $26.63 | 21,167 | D | P |
| 13 May, 2025 | Robert J Bass | Common Shares of Beneficial Interest | A | 1,626 | $30.78 | 17,403 | D | P |
| 26 May, 2023 | Carlos Whitaker | Common Shares of Beneficial Interest | A | 3,895 | $25.68 | 3,895 | D | P |
| 21 Nov, 2022 | Katherine Rubenstein | Common Shares of Beneficial Interest | A | 3,359 | $23.83 | 3,359 | D | P |
| 08 Mar, 2022 | Robert J Bass | Common Shares of Beneficial Interest | A | 2,485 | $28.77 | 10,926 | D | P |
| 17 Nov, 2021 | Robert J Bass | Common Shares of Beneficial Interest | A | 3,660 | $31.64 | 8,285 | D | P |
| 14 Dec, 2020 | Beth Chartoff | Common Shares of Beneficial Interest | A | 319 | $25.05 | 1,882 | D | A |
| 14 Dec, 2020 | Daniel Harlan Jr. Smith | Common Shares of Beneficial Interest | A | 3,194 | $25.05 | 19,085 | D | A |
| 14 Dec, 2020 | Stephan Kuppenheimer | Common Shares of Beneficial Interest | A | 1,916 | $25.05 | 11,291 | D | A |
| 14 Dec, 2020 | Robert J Bass | Common Shares of Beneficial Interest | A | 639 | $25.05 | 3,898 | D | A |
| 14 Jul, 2020 | Beth Chartoff | Common Shares of Beneficial Interest | A | 1,563 | $23.68 | 1,563 | D | A |
| 14 Jul, 2020 | Stephan Kuppenheimer | Common Shares of Beneficial Interest | A | 9,375 | $23.68 | 9,375 | D | A |
| 14 Jul, 2020 | Daniel Harlan Jr. Smith | Common Shares of Beneficial Interest | A | 15,625 | $23.68 | 15,625 | D | A |
| 07 Apr, 2020 | Robert J Bass | Common Shares of Beneficial Interest | A | 459 | $21.80 | 3,074 | D | A |
| 30 Jan, 2020 | Superannuation Scheme Ltd As Sole Corporate Trustee For Universities Superannuation Scheme Universities | Common Stock | A | 1,606,733 | $26.14 | 7,545,151 | D | P |
| 29 Jan, 2020 | Robert J Bass | Common Shares of Beneficial Interest | A | 536 | $26.14 | 2,576 | D | A |