As of September 29, 2026, Blackstone Mortgage Trust's top three insider holders are Michael B. Nash (Director, 558.27K shares), Timothy Steven Johnson (Chief Executive Officer, 527.90K shares), Katharine A Keenan (Ceo President, 230.01K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael B. Nash | Director | 558,272 | 0 | 558,272 | 21.4% | 29 Jun, 2026 |
| 2 | Timothy Steven Johnson | Chief Executive Officer | 527,900 | 0 | 527,900 | 20.3% | 17 Dec, 2025 |
| 3 | Katharine A Keenan | Ceo President | 230,006 | 0 | 230,006 | 8.8% | 18 Sep, 2025 |
| 4 | Henry N Nassau | Director | 218,523 | 0 | 218,523 | 8.4% | 06 Aug, 2026 |
| 5 | Jonathan Lee Pollack | Director | 214,683 | 0 | 214,683 | 8.2% | 15 Dec, 2023 |
| 6 | Lynne B Sagalyn | Director | 166,639 | 0 | 166,639 | 6.4% | 16 Jul, 2026 |
| 7 | Thomas E Dobrowski | Director | 129,354 | 0 | 129,354 | 5.0% | 16 Jan, 2025 |
| 8 | Martin L Edelman | Director | 105,865 | 0 | 105,865 | 4.1% | 17 Jan, 2023 |
| 9 | Douglas N. Armer | Executive Vice President | 104,741 | 0 | 104,741 | 4.0% | 09 Jun, 2022 |
| 10 | Leonard W Cotton | Director | 98,827 | 0 | 98,827 | 3.8% | 16 Jul, 2026 |
| 11 | Anthony F. Jr Marone | Chief Financial Officer | 75,500 | 0 | 75,500 | 2.9% | 17 Dec, 2025 |
| 12 | Fernando Austin Pena | President | 71,772 | 0 | 71,772 | 2.8% | 18 Sep, 2026 |
| 13 | Nnenna Lynch | Director | 42,952 | 0 | 42,952 | 1.6% | 16 Jul, 2026 |
| 14 | Gilda Perez-Alvarado | Director | 26,504 | 0 | 26,504 | 1.0% | 29 Jun, 2026 |
| 15 | Marcin Urbaszek | Chief Financial Officer | 23,960 | 0 | 23,960 | 0.9% | 18 Sep, 2026 |
| 16 | Chen Yi Hsu | Director | 11,031 | 0 | 11,031 | 0.4% | 16 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 17 Sep, 2026 | Marcin Urbaszek | Chief Financial Officer | Disposed S | 864 | $13.42 | $11.60K | 23,960 | Direct |
| 17 Sep, 2026 | Fernando Austin Pena | President | Disposed S | 1,127 | $13.42 | $15.13K | 71,772 | Direct |
| 04 Aug, 2026 | Henry N Nassau | Director | Acquired P | 10,000 | $14.34 | $143.36K | 218,523 | Direct |
| 15 Jul, 2026 | Leonard W Cotton | Director | Acquired A | 1,831 | $17.12 | $31.35K | 98,827 | Direct |
| 15 Jul, 2026 | Nnenna Lynch | Director | Acquired A | 1,147 | $17.12 | $19.64K | 42,952 | Direct |
| 15 Jul, 2026 | Lynne B Sagalyn | Director | Acquired A | 3,939 | $17.12 | $67.44K | 166,639 | Direct |
| 15 Jul, 2026 | Henry N Nassau | Director | Acquired A | 3,044 | $17.12 | $52.11K | 208,523 | Direct |
| 15 Jul, 2026 | Chen Yi Hsu | Director | Acquired A | 181 | $17.12 | $3.10K | 11,031 | Direct |
| 30 Jun, 2026 | Fernando Austin Pena | President | Disposed S | 1,670 | $17.07 | $28.51K | 72,899 | Direct |
| 26 Jun, 2026 | Leonard W Cotton | Director | Acquired A | 6,597 | $17.43 | $114.99K | 96,890 | Direct |
| 26 Jun, 2026 | Lynne B Sagalyn | Director | Acquired A | 6,597 | $17.43 | $114.99K | 162,700 | Direct |
| 26 Jun, 2026 | Henry N Nassau | Director | Acquired A | 6,597 | $17.43 | $114.99K | 205,479 | Direct |
| 26 Jun, 2026 | Gilda Perez-Alvarado | Director | Acquired A | 6,597 | $17.43 | $114.99K | 26,504 | Direct |
| 26 Jun, 2026 | Michael B. Nash | Director | Acquired A | 6,597 | $17.43 | $114.99K | 558,272 | Direct |
| 26 Jun, 2026 | Chen Yi Hsu | Director | Acquired A | 6,597 | $17.43 | $114.99K | 10,850 | Direct |
| 25 Jun, 2026 | Fernando Austin Pena | President | Disposed S | 2,398 | $17.48 | $41.92K | 74,569 | Direct |
| 26 Jun, 2026 | Nnenna Lynch | Director | Acquired A | 6,597 | $17.43 | $114.99K | 41,805 | Direct |
| 17 Jun, 2026 | Marcin Urbaszek | Chief Financial Officer | Disposed S | 1,352 | $18.35 | $24.81K | 24,824 | Direct |
| 15 Apr, 2026 | Leonard W Cotton | Director | Acquired A | 1,523 | $20.12 | $30.64K | 90,293 | Direct |
| 15 Apr, 2026 | Henry N Nassau | Director | Acquired A | 2,531 | $20.12 | $50.92K | 198,882 | Direct |