ANNEXON INC

$ANNX
Smart money positioned

13 of the Top-200 alpha managers hold $ANNX as of the latest 13F snapshot.

13F holders
214
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

13 holders · Q1 2026

$ANNX is held by 13 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.68%, with an average of 0.09% of portfolio. Largest holder: Bellevue Group AG at 0.68%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 214 · Source: 13F-HR
01
Fir Tree Capital Management LP
1.61% of portfolio
17,396,346 sh
02
Silver Lake Group, L.L.C.
5.34% of portfolio
14,549,768 sh
03
Nuveen
0.02% of portfolio
7,054,080 sh
04
Axa S.a.
6,919,255 sh
05
Sapphire Ventures, L.l.c.
2.61% of portfolio
5,212,674 sh
06
Rokos Capital Management LLP
0.68% of portfolio
5,157,290 sh
07
Ballentine Partners, LLC
3.86% of portfolio
4,724,043 sh
08
State Street
4,652,185 sh
09
Partners Value Investments L.P.
0.04% of portfolio
4,300,000 sh
10
GSG Advisors LLC
0.61% of portfolio
3,958,646 sh
See all 214 13F holders · Pro →

Insider activity · last 90 days

25 transactions · 9 filers
30 Dec 2025
Carson William H.
▲ BOUGHT
4,115
$5.02
P
01 Dec 2025
Carson William H.
▲ BOUGHT
4,115
$4.47
P
01 Dec 2025
Choi Jung
▲ BOUGHT
33,000
$4.19
P
21 Nov 2025
Satter Muneer A
▲ BOUGHT
422,613
$4.28
P
20 Nov 2025
Satter Muneer A
▲ BOUGHT
400,000
$4.48
P
19 Nov 2025
Satter Muneer A
▲ BOUGHT
500,000
$3.94
P
18 Nov 2025
Satter Muneer A
▲ BOUGHT
500,000
$3.18
P
17 Nov 2025
Satter Muneer A
▲ BOUGHT
500,000
$2.99
P
30 Oct 2025
Carson William H.
▲ BOUGHT
4,115
$3.17
P
30 Sep 2025
Carson William H.
▲ BOUGHT
4,115
$3.05
P
02 Sep 2025
Carson William H.
▲ BOUGHT
4,115
$2.09
P
30 Jul 2025
Carson William H.
▲ BOUGHT
4,115
$2.43
P

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $ANNX in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 07:17 UTC.