Insider · CIK 0002002512
Jonathan Lewinsohn
Files at Diameter Credit Co, Diameter Dynamic Credit Fund. First filing Nov 13, 2024, latest Sep 23, 2026.
In brief
Jonathan Lewinsohn files SEC Form 4 as director and president at Diameter Credit Co, and also at Diameter Dynamic Credit Fund. Since Nov 13, 2024, Jonathan Lewinsohn has reported 11 open-market buys worth $13M and 0 open-market sells worth $0, the latest filed on Sep 23, 2026.
A track record needs three past buys with six months of prices behind them; Jonathan Lewinsohn has 0, so none is measured yet.
The newest scored trade: bought $1.0M of Diameter Dynamic Credit Fund on Sep 10, 2026, filed Sep 23, 2026, scored 53 (moderate). In the last 12 months: 4 buys worth $5.0M and 0 sells worth $0.
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 53Moderate | -buy Diameter Dynamic Credit Fund | $1.0M 98,814 shares | - | - | |
| 58Moderate | -buy 5 Diameter Credit Co | $1.0M 36,208 shares | +12% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.6M 58,628 shares | +21% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.4M 51,749 shares | +21% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.4M 51,144 shares | +23% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.2M 44,475 shares | +22% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.2M 44,109 shares | +25% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.0M 37,395 shares | +23% | - | |
| 63Notable | -buy 5 Diameter Credit Co | $810k 29,641 shares | +20% | - | |
| 66Notable | -buy 5 Diameter Credit Co | $1.2M 45,017 shares | +37% | - | |
| 61Notable | -buy 5 Diameter Credit Co | $1.0M 37,890 shares | +37% | - |
Transactions
Every row this insider has filed, 21 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | - Diameter Dynamic Credit Fund | POpen-market purchase Class I Common Shares | +98,814 | $10.12 | $1.0M | 98,814 | 20 d ago |
| Mar 2, 2026 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +18,327 | $27.96 | $512k | 323,789 | Mar 4, 2026 |
| Mar 2, 2026 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +17,880 | $27.96 | $500k | 318,261 | Mar 4, 2026 |
| Nov 14, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +29,676 | $27.63 | $820k | 305,462 | Nov 18, 2025 |
| Nov 14, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +28,952 | $27.63 | $800k | 300,381 | Nov 18, 2025 |
| Oct 20, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +26,194 | $27.39 | $717k | 275,786 | Oct 22, 2025 |
| Oct 20, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +25,555 | $27.39 | $700k | 271,428 | Oct 22, 2025 |
| Sep 17, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +25,888 | $27.72 | $717k | 249,592 | Sep 19, 2025 |
| Sep 17, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +25,256 | $27.72 | $700k | 245,873 | Sep 19, 2025 |
| Jul 28, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +22,512 | $27.32 | $615k | 223,704 | Jul 30, 2025 |
| Jul 28, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +21,963 | $27.32 | $600k | 220,617 | Jul 30, 2025 |
| Jun 9, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +22,327 | $27.55 | $615k | 201,192 | Jun 11, 2025 |
| Jun 9, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +21,782 | $27.55 | $600k | 198,654 | Jun 11, 2025 |
| Apr 21, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +18,929 | $27.08 | $513k | 178,865 | Apr 23, 2025 |
| Apr 21, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +18,467 | $27.08 | $500k | 176,872 | Apr 23, 2025 |
| Feb 24, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +15,004 | $27.33 | $410k | 159,937 | Feb 26, 2025 |
| Feb 24, 2025 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +14,638 | $27.33 | $400k | 158,405 | Feb 26, 2025 |
| Dec 16, 2024 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +22,786 | $26.99 | $615k | 144,933 | Dec 18, 2024 |
| Dec 16, 2024 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +22,231 | $26.99 | $600k | 143,767 | Dec 18, 2024 |
| Nov 11, 2024 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001 | +19,179 | $26.72 | $512k | 122,147 | Nov 13, 2024 |
| Nov 11, 2024 | - Diameter Credit Co | POpen-market purchase Common shares of beneficial interest, par value $0.001indirect: By Diameter Principal Finance LLC | +18,711 | $26.72 | $500k | 121,537 | Nov 13, 2024 |
Questions about Jonathan Lewinsohn
Answered from the filings on this page, as of the latest one.
Is Jonathan Lewinsohn buying or selling?
In the last 12 months Jonathan Lewinsohn reported 4 open-market buys worth $5.0M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $1.0M of Diameter Dynamic Credit Fund on Sep 10, 2026. Grants, option exercises and tax withholding are not counted.
How did Jonathan Lewinsohn's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jonathan Lewinsohn has 0.
Where does Jonathan Lewinsohn file Form 4?
Jonathan Lewinsohn has filed Form 4 at Diameter Credit Co; Diameter Dynamic Credit Fund as Co-President. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.