Sixth Street Specialty Lending, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Sixth Street Specialty Lending, Inc. (TSLX), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are TSLX insiders buying or selling?
In the last 12 months, Sixth Street Specialty Lending, Inc. insiders reported 9 open-market purchases ($11.2M) and 0 sales ($0) — net buying of $11.2M. Since March 2018, Trabud has recorded 48 Form 4 filings for TSLX: 48 buys ($14.5M) and 0 sells ($0).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $5.5M by Alan Waxman (Vice President) on Mar 9, 2026. SEC ↗
- The most recent open-market purchase was reported on May 13, 2026 (5 months ago).
Key Statistics (March 2018 – May 13, 2026)
Total Form 4 filings
48
SEC EDGAR
Insider filers
18
Insider buys (48)
$14.5M
Insider sells (0)
$0
Insider sentiment
Net buyingNet insider flow of $14.5M in net buying since March 2018, and $11.2M in net buying over the last 12 months.
Recent TSLX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| May 13, 2026 | Ross Anthony Bruck | Vice President | Purchase | 8.0K | $17.76 | $142.1K | SEC ↗ |
| Mar 11, 2026 | Alan Waxman | Vice President | Purchase | 245.0K | $18.23 | $4.5M | SEC ↗ |
| Mar 10, 2026 | Emery P Covington | Director | Purchase | 7.5K | $18.35 | $137.6K | SEC ↗ |
| Mar 9, 2026 | Alan Waxman | Vice President | Purchase | 300.0K | $18.43 | $5.5M | SEC ↗ |
| Mar 4, 2026 | David Stiepleman | Vice President | Purchase | 20.2K | $17.65 | $356.5K | SEC ↗ |
| Mar 3, 2026 | Joshua Peck | Vice President | Purchase | 2.8K | $17.59 | $50.0K | SEC ↗ |
| Mar 3, 2026 | Steven Pluss | Vice President | Purchase | 15.0K | $17.72 | $265.8K | SEC ↗ |
| Mar 2, 2026 | Michael Graf | Title: Vice President / Principal Accounting Officer / Deputy Chief Financial Officer (2) Anton Bret | Purchase | 1.0K | $18.26 | $18.3K | SEC ↗ |
| Nov 20, 2025 | Robert J. Stanley | Co-CEO | Purchase | 10.0K | $20.85 | $208.5K | SEC ↗ |
| Nov 22, 2024 | Michael Graf | Title: Vice President / Principal Accounting Officer / Deputy Chief Financial Officer (2) Anton Bret | Purchase | 1.0K | $20.53 | $20.5K | SEC ↗ |
| Aug 9, 2024 | Michael Graf | Title: Vice President / Principal Accounting Officer / Deputy Chief Financial Officer (2) Anton Bret | Purchase | 500 | $20.45 | $10.2K | SEC ↗ |
| Aug 7, 2024 | Judy S Slotkin | Director | Purchase | 7.0K | $19.90 | $139.6K | SEC ↗ |
| May 22, 2024 | Emery P Covington | Director | Purchase | 7.5K | $21.50 | $161.3K | SEC ↗ |
| Mar 15, 2023 | Hurley Doddy | Director | Purchase | 2.9K | $17.51 | $50.8K | SEC ↗ |
| Mar 14, 2023 | Michael Graf | (1) Vice President / Principal Accounting Officer / Deputy Chief Financial Officer (2) Ian Simmonds | Purchase | 3.5K | $18.12 | $63.4K | SEC ↗ |
| Aug 22, 2022 | Anton Brett | Chief Compliance Officer | Purchase | 500 | $19.25 | $9.6K | SEC ↗ |
| Aug 10, 2022 | Steven Pluss | Vice President | Purchase | 10.0K | $19.04 | $190.4K | SEC ↗ |
| Aug 9, 2022 | Ian Simmonds | Chief Financial Officer | Purchase | 500 | $18.89 | $9.4K | SEC ↗ |
| May 26, 2022 | Jennifer Gordon | Vice President | Purchase | 2.5K | $19.91 | $49.8K | SEC ↗ |
| May 11, 2022 | Ian Simmonds | Chief Financial Officer | Purchase | 500 | $20.99 | $10.5K | SEC ↗ |
| Mar 10, 2022 | Judy S Slotkin | Director | Purchase | 850 | $23.13 | $19.7K | SEC ↗ |
| Mar 9, 2022 | Richard A Higginbotham | Director | Purchase | 2.0K | $22.82 | $45.6K | SEC ↗ |
| May 13, 2021 | Richard A Higginbotham | Director | Purchase | 5.0K | $21.88 | $109.4K | SEC ↗ |
| Mar 11, 2021 | Joshua Easterly | Chief Executive Officer | Purchase | 8.4K | $21.55 | $180.2K | SEC ↗ |
| Mar 3, 2021 | Joshua Easterly | Chief Executive Officer | Purchase | 686.27 | $21.34 | $14.6K | SEC ↗ |
Showing the 25 most recent of 48 Form 4 filings for Sixth Street Specialty Lending, Inc..
Most active TSLX insiders
- Hurley Doddy7 filings
- John Ross5 filings
- Michael Graf4 filings
- Richard A Higginbotham4 filings
- Robert J. Stanley4 filings
Ask anything about TSLX insider activity
Use Trabud's AI agent to query Sixth Street Specialty Lending, Inc.'s Form 4 history in plain English — "Show me TSLX CEO purchases this year" or compare it against any other ticker.
Open the AI agentTSLX insider trading FAQ
Are Sixth Street Specialty Lending, Inc. insiders buying or selling?
In the last 12 months, Sixth Street Specialty Lending, Inc. insiders reported 9 open-market purchases ($11.2M) and 0 sales ($0) — net buying of $11.2M. Since March 2018, Trabud has recorded 48 Form 4 filings for TSLX: 48 buys ($14.5M) and 0 sells ($0). Over the full record that is net buying of $14.5M.
How many insiders trade TSLX stock?
18 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Sixth Street Specialty Lending, Inc.. The most recent filing was accepted on May 13, 2026.
Where does Trabud get TSLX insider trading data?
All TSLX insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.