Saba lifts DSM stake with 207,722-share buy in SEC filing (NYSE: DSM)

What happened

Saba Capital Management, L.P., a 10% owner, bought 207,722 shares of Bny Mellon Strategic Municipal Bond Fund, Inc. (NYSE: DSM) from 2026-10-16 to 2026-10-19. The Form 4 shows common stock purchases at $5.26, $5.28 and $5.29 a share, with the position shown as indirect ownership.

The first two buys landed on 2026-10-16 and the third on 2026-10-19. The filing puts the total purchase value at about $1.10 million and shows 5,400,925 shares held after the trades. The filing was signed on 10/20/2026.

Key numbers

Metric Latest Change Source
Shares bought 207,722 shares SEC Form 4
Purchase price range from $5.26 to $5.29 per share SEC Form 4
Total purchase value about $1.10 million SEC Form 4
Shares held after purchase 5,400,925 shares SEC Form 4
Purchase as a share of the pre-trade holding 4.0% Calculated from SEC Form 4

Read more: Bny Mellon Strategic Municipal Bond Fund (DSM) stock analysis and investment case

Why it matters

OptimistFi's calculation puts the 207,722 shares at about 4.0% of the 5,193,203-share holding before the trade. That gives investors a clean baseline for measuring how much Saba added in this window. It also shows the latest reported holding rose from 5,193,203 shares to 5,400,925 shares.

Table I records 48,135 shares at $5.26, 90,507 shares at $5.28 and 69,080 shares at $5.29. Those three fills span just $0.03 a share, and the filing shows the buys were spread across 2026-10-16 and 2026-10-19. The post-trade holding of 5,400,925 shares gives investors a concrete level to compare with the next filing.

The filing establishes the stake size, the purchase dates, the exact share counts and the price band. The caveat is that a Form 4 is a snapshot, so it fixes the position at that point in time and no more.

Stock perps: every US stock that trades as a perpetual future, by leverage, live

What's next

The next Form 4 will be the follow-up test for this position. A larger reported stake would extend the buying trend, while a smaller one would show the latest add did not hold.

An unchanged figure would leave the 5,400,925-share baseline intact for the next comparison. If Saba files again, investors can compare the new share count with this 5.4 million-share mark.

That later filing would also show whether Saba kept the same indirect ownership structure or altered the stake again.

More from OptimistFi

From OptimistFi Perps

Sources

  • SEC Form 4 — Form 4 reporting Saba Capital Management, L.P.'s DSM purchases and post-trade holding.

Read the full OptimistFi thesis on Bny Mellon Strategic Municipal Bond Fund, Inc.: https://optimistfi.com/stocks/DSM

See what would break the Bny Mellon Strategic Municipal Bond Fund, Inc. thesis and track it live on the OptimistFi Thesis-Break Engine.

Browse every company OptimistFi covers at optimistfi.com/stocks, or read the latest evidence-first research.

The full Bny Mellon Strategic Municipal Bond Fund, Inc. investment case, its status and the next test to watch live on the Bny Mellon Strategic Municipal Bond Fund, Inc. thesis page.

Originally published on OptimistFi, evidence-first equity research. More at optimistfi.com.