🧾 What This Document Is

This is a DEFA14A, which stands for "Definitive Additional Materials." Think of it as a supplemental brochure or a Q&A document that adds to the main proxy statement. The main proxy was filed earlier, and this piece is designed to persuade shareholders to vote "FOR" a specific proposal at an upcoming special meeting.

👉 Why it matters: The company is asking for a special power that might sound scary at first: the ability to sell new shares of stock at a price below what the company is currently worth on paper (its Net Asset Value or NAV). This document is their case for why shareholders should grant that power.

🏢 What The Company Does

Sixth Street Specialty Lending (TSLX) is a Business Development Company (BDC). In simple terms, BDCs are like specialized banks for mid-sized companies. They raise money from investors (like you, if you own the stock) and then lend that money to other businesses, earning interest and fees.

👉 The industry: They operate in the world of "specialty finance" and "corporate credit," focusing on making loans to companies. Their performance is often compared to other BDCs and benchmarks like leveraged loans and high-yield bonds.

🤝 The Deal: The Proposal at Hand

On May 21, 2026, at 10:00 AM Eastern Time, TSLX will hold a special meeting for shareholders. The single item on the ballot is to authorize the board to sell shares below the current NAV per share.

The Key Safeguards (The Fine Print):

• The board must approve each offering.
• Each offering is capped: they cannot sell more than 25% of the shares that were outstanding right before that sale.
• Crucially, they state they have never used this power, even though they've had similar approval since May 2017.

👉 Why ask for this? To have "financial flexibility" during market crises. They argue that when the market panics, good investment opportunities appear, but many competitors are frozen. Having this tool lets them raise cash quickly to pounce on those deals.

📊 Historical Justification: The "Why Now?"

The filing uses two historical periods to make its case:

1. Late 2015 – Early 2016: Credit markets were volatile, and BDC stocks traded below their NAV (their "book value").
2. Early – Mid 2020: The COVID-19 crash caused a similar dislocation, with BDCs trading at steep discounts to NAV.

👉 The thesis: During these scary times, TSLX could have issued stock at a discount to fund attractive new loans. The math would work if the high interest (yield) earned on those new loans outweighs the initial discount paid to sell the stock.

🚀 Key Moves: TSLX's Track Record & Discipline

This is the heart of their argument: "Trust us, we're responsible."

• Strong Performance: They show charts arguing they outperform peers on metrics like Return on Equity (ROE) and Total Return for stockholders.
• Capital Allocation Discipline: They highlight that their stock has traded above its NAV on 98.5% of days since 2017, so they haven't needed to sell stock cheaply. They emphasize their past equity raises have been small and done at premiums.
• The ROE Accretion Math: They provide complex tables to prove that if they sell stock at a discount (e.g., 10% below NAV) to fund new loans yielding a high interest rate (e.g., 15%), the overall return on equity for existing shareholders can actually increase over time.

💸 Financial Position & Cash Flow Story

While not a detailed financial statement, the filing hints at the strategy:

• Capital Resources: Having this flexibility improves their ability to comply with regulatory requirements and debt covenants.
• Use of Proceeds: Any money raised would be used to make new "high quality investment opportunities" (i.e., loans), not for executive payouts.

🔮 What's Next: The Vote and The Future

• Immediate Next Step: Shareholders need to vote by May 21, 2026. They provide instructions to vote online, by phone, or by mail.
• Strategic Direction: If approved, TSLX will have a "tool in the toolbox" for future market dislocations. They frame it as a proactive, strategic move to be ready for the next opportunity, not a sign of current distress.

⚖️ Big Picture: Strengths & Risks

• 👍 Strengths:

  • They are making a data-driven, historical argument based on past market events.
  • They heavily emphasize their track record of discipline and outperformance to build credibility.
  • The proposal has built-in limits (the 25% cap per offering).

• ⚠️ Risks & Why Some Might Vote No:

  • Dilution: Selling shares below NAV is inherently dilutive to existing shareholders' book value in the short term. Shareholders are being asked to trust the long-term accretion math.
  • Execution Risk: The company must successfully find and win those attractive investments during a crisis for the strategy to pay off.
  • Precedent: Some investors philosophically oppose any ability to issue stock below NAV, seeing it as a poor alignment of interests.

🧠 The Analogy

Imagine you own a piece of a beautifully maintained rental property (the company). Its appraised value is $100,000. A developer comes to you with a once-in-a-decade opportunity to buy the empty lot next door for $40,000, but you need cash now. Selling a piece of your current property for $80,000 (a 20% discount) to fund that purchase seems bad. But, if that new lot will generate enough extra rental income to make your total property more valuable in a few years, the short-term discount was a smart, strategic move. TSLX wants permission to make that kind of deal in a crisis.

🧩 Final Takeaway

Sixth Street Specialty Lending wants shareholder approval for a powerful but rarely used tool: selling stock at a discount during market chaos to fund future profits. Their core argument is built on a promise of disciplined, accretive execution, backed by a strong historical track record. The vote is about trusting their management with future flexibility.