Which tracked institutional funds hold SBDS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SBDS company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
22
Institutional holders
1,212,579
Shares held (tracked funds)
How the tape is positioned
The tracked-fund tape on SBDS is one-sided between 2025-Q4 and 2026-Q1: 0 added or opened and 1 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SBDS’s largest tracked holder by dollar value, SUMMIT PARTNERS L P, sizes it at 0.6% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.6pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SBDS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 22 tracked filers holding SBDS, 9 increased or opened the position and 13 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SBDS between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Largest trims
SUMMIT PARTNERS L P$3M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
HoldersTotal shares
Reading this table
Funds hold the same stock for different reasons — an index fund
“holds” almost everything, an active manager sizes a name to a
mandate and a benchmark, and each fund entered at its own price and time.
Because 13F is filed up to 45 days after quarter-end, every row is a
backward-looking snapshot; a manager may have traded since. Share-class
siblings (a company’s A and C shares) are rolled up to one line so a
dual-class name is never double-counted. Compare like-for-like.
A large holder is not an endorsement, and a fund exiting is not a warning
— this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers
with over $100 million in US-listed equities must file with the SEC.
In plain English: it is a snapshot of the long stock
positions a fund held at the end of a quarter. It covers long US-listed
equities only — not short positions, options, cash, or private
holdings — and the funds shown are the large sample we track, not the
complete 13F universe.
