NYSE · CIK 0001508655
TSLX Sixth Street Specialty Lending, Inc.
Insider trading from SEC Form 4. Last filing May 29, 2026. Close $17.35 on Oct 9, 2026, +10% from the 52-week low and -17% from the high.
In brief
Sixth Street Specialty Lending, Inc. (TSLX) has 11 SEC Form 4 filings on file from 8 insiders, the latest filed on May 29, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
10 open-market trades have been scored at TSLX. The newest: Ross Anthony Bruck (Vice President) bought $142k of stock on May 11, 2026, filed May 13, 2026, scored 50 (moderate). The largest of the 10 shown: Alan Waxman (Vice President) bought $5.5M on Mar 5, 2026, scored 77 (notable). 6 insiders bought within 14 days of each other around Mar 9, 2026.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Sixth Street Specialty Lending, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 50Moderate | Ross Anthony Bruck Vice President buy | $142k 8,000 shares | +78% | +3% from low-26% from high | |
| 84Strong | Alan Waxman Vice President buy | $4.5M 245,000 shares | +82% | +6% from low-23% from high | |
| 65Notable | P Emery Covington director buy | $138k 7,500 shares | +100% | +6% from low-24% from high | |
| 77Notable | Alan Waxman Vice President buy | $5.5M 300,000 shares | - | +7% from low-23% from high | |
| 69Notable | David Stiepleman Vice President buy | $357k 20,200 shares | +365% | +2% from low-27% from high | |
| 61Notable | Joshua Peck Vice President buy | $50k 2,840 shares | +947% | +2% from low-27% from high | |
| 63Notable | Steven Pluss Vice President buy | $266k 15,000 shares | +41% | 0% from low-28% from high | |
| 47Moderate | Michael Graf See Remarks buy | $18k 1,000 shares | +16% | +2% from low-24% from high | |
| 51Moderate | Robert J. Stanley Co-CEO buy | $209k 10,000 shares | +67% | +14% from low-15% from high | |
| 21Weak | Michael Graf See Remarks buy | $21k 1,000 shares | +22% | - |
Transactions
Every row filed, 13 in all.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 28, 2026 | Robert J. Stanley CEO | JOther Common Stockindirect: See Footnote | +20,000 | - | - | 23,907 | May 29, 2026 |
| May 11, 2026 | Ross Anthony Bruck Vice President | POpen-market purchase Common Stock | +8,000 | $17.76 | $142k | 18,250 | May 13, 2026 |
| Mar 9, 2026 | Alan Waxman Vice President | POpen-market purchase Common Stockindirect: By Trust | +200,000 | $18.18 | $3.6M | 500,000 | Mar 11, 2026 |
| Mar 10, 2026 | Alan Waxman Vice President | POpen-market purchase Common Stockindirect: By Trust | +45,000 | $18.47 | $831k | 545,000 | Mar 11, 2026 |
| Mar 6, 2026 | P Emery Covington director | POpen-market purchase Common Stock | +7,500 | $18.35 | $138k | 15,000 | Mar 10, 2026 |
| Mar 5, 2026 | Alan Waxman Vice President | POpen-market purchase Common Stockindirect: By Trust | +100,000 | $18.46 | $1.8M | 100,000 | Mar 9, 2026 |
| Mar 6, 2026 | Alan Waxman Vice President | POpen-market purchase Common Stockindirect: By Trust | +200,000 | $18.42 | $3.7M | 300,000 | Mar 9, 2026 |
| Mar 2, 2026 | David Stiepleman Vice President | POpen-market purchase Common Stock | +20,200 | $17.65 | $357k | 25,735 | Mar 4, 2026 |
| Mar 2, 2026 | Joshua Peck Vice President | POpen-market purchase Common Stock | +2,840 | $17.59 | $50k | 3,140 | Mar 3, 2026 |
| Feb 27, 2026 | Steven Pluss Vice President | POpen-market purchase Common Stock | +15,000 | $17.72 | $266k | 51,500 | Mar 3, 2026 |
| Feb 26, 2026 | Michael Graf See Remarks | POpen-market purchase Common Stock | +1,000 | $18.26 | $18k | 7,205 | Mar 2, 2026 |
| Nov 18, 2025 | Robert J. Stanley Co-CEO | POpen-market purchase Common Stock | +10,000 | $20.85 | $209k | 24,907 | Nov 20, 2025 |
| Nov 20, 2024 | Michael Graf See Remarks | POpen-market purchase Common Stock | +1,000 | $20.53 | $21k | 5,605 | Nov 22, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Ross Anthony BruckVice President
- P Emery Covingtondirector
- Michael GrafSee Remarks
- Joshua PeckVice President
- Steven PlussVice President
- Robert J. StanleyCEO
- David StieplemanVice President
- Alan WaxmanVice President
Questions about TSLX
Answered from the filings on this page, as of the latest one.
Are insiders buying TSLX?
No. In the last 90 days no insider at Sixth Street Specialty Lending, Inc. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade TSLX on the open market?
Ross Anthony Bruck (Vice President) bought $142k of TSLX on May 11, 2026 and filed the Form 4 on May 13, 2026. InsiderTell scored 50 (moderate).
How many insiders file Form 4 at Sixth Street Specialty Lending, Inc.?
8 people have filed a Form 4 at Sixth Street Specialty Lending, Inc., among them Ross Anthony Bruck (Vice President), P Emery Covington (director), Michael Graf (See Remarks). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
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.