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ANNX

ANNEXON, INC.
Latest close $4.967 of 27 marquee funds currently hold1 CUSIP mapped
Current holders
7
27 funds tracked
Ever held
7
Current + past
New this quarter
0
Exited this quarter
0

Marquee-fund ownership over time

Aug 9, 2024Nov 14, 2024Aug 14, 2025Feb 17, 2026
Now
7

Current holders

Sorted by tenure (longest first)
FundEntry priceLatest closeReturn on entry
Renaissance Technologies$5.48$4.96-9%
Two Sigma Investments re-entered$5.61$4.96-12%
D.E. Shaw re-entered$5.61$4.96-12%
AQR Capital Management$5.61$4.96-12%
Millennium Management$5.61$4.96-12%
Point72 Asset Management re-entered$5.61$4.96-12%
Citadel Advisors$6.33$4.96-22%

“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.

Insider activity

Form 4 — officers, directors, 10%+ owners

Filed within two business days of each transaction by anyone with material insider status at Annexon, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.

Filings · last 30d
2
Filings · last 90d
9
Total on file
164
Recent SEC buffer
Most recent
May 29, 2026

30d / 90d windows measured from May 29, 2026 — the most recent Form 4 on file — not from today.

Showing 15 of 164 recent Form 4 filings. Browse all on EDGAR ↗

Fundamentals

XBRL · ANNEXON, INC.

Annual figures sourced directly from ANNEXON, INC.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.

Net income
-$206.69M
FY2025-50% YoY
EPS (diluted)
$-1.34
FY2025-33% YoY
Free cash flow(?)
-$186.49M
FY2025-58% YoY

Recent SEC filings

10-K · 10-Q · 8-K · 13D/G · proxy

The most recent material filings for Annexon, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.

Trade history

Every open→close lifecycle across tracked funds
FundOpen dateClose dateOpen priceClose price / currentReturn
D.E. ShawQ1 2026open$5.04$4.96-2%
Point72 Asset ManagementQ4 2025open$2.71$4.96+83%
Two Sigma InvestmentsQ3 2025open$2.38$4.96+108%
Citadel AdvisorsQ4 2024open$6.33$4.96-22%
Two Sigma InvestmentsQ3 2024Q2 2025$5.61$1.81-68%
D.E. ShawQ3 2024Q1 2025$5.61$3.07-45%
AQR Capital ManagementQ3 2024open$5.61$4.96-12%
Millennium ManagementQ3 2024open$5.61$4.96-12%
Point72 Asset ManagementQ3 2024Q3 2025$5.61$2.38-58%
Renaissance TechnologiesQ3 2024open$5.48$4.96-9%
Caveats
  • Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
  • Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
  • “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
  • Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
  • Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.