Which tracked institutional funds hold CCXI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See CCXI company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
48
Institutional holders
27M
Shares held (tracked funds)
Conviction spread
CCXI’s largest tracked holder by dollar value, ADAGE CAPITAL PARTNERS GP, L.L.C., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes CCXI more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in CCXI 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
Only one quarter (2026-Q1) of 13F history is available — a quarter-over-quarter accumulation delta needs two.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
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.
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.
