Latest Period
Q2 2026
Security Snapshot
Annexon, Inc. - COMMON STOCK (ANNX) Institutional Ownership
CUSIP: 03589W102
13F Institutional Holders and Ownership History from Q3 2020 to Q2 2026
Institutions Reporting
214
Shares (Excl. Options)
178,167,335
Price
$5.71
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- ANNX on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 178,167,335
- Total 13F value
- $1,017,160,643
- Portfolio coverage rank
- 0%
- Share change
- +22,504,684
- Value change
- +$128,757,072
- Number of holders
- 214
- Shares outstanding
- 163,738,683
- SEC-reported price per share
- $5.22
- Insider filing price
- $5.22
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ANNX - Annexon, Inc. - COMMON STOCK is tracked under CUSIP 03589W102.
- 214 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 217 to 214 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $863,678,464 to $1,017,160,643.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 214 institutions filings for Q2 2026.
Security key
03589W102
Latest holder period
Q2 2026
13F holders
214
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
ANNX full holder history
Annexon, Inc. SEC filings
Annexon, Inc. company facts
Annexon, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 03589W102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
ANNX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| FMR LLC | 12% | +69% | $111,456,470 | +$53,083,097 | 19,518,496 | +91% | FMR LLC | 30 Jun 2026 |
| Redmile Group, LLC | 9.9% | 0% | $102,319,776 | +$14,222,033 | 17,918,459 | +16% | Redmile Group, LLC | 01 Jul 2026 |
| BlackRock, Inc. | 8% | +32% | $74,962,485 | +$24,321,893 | 13,128,281 | +48% | BlackRock, Inc. | 30 Jun 2026 |
| Satter Muneer A | 7.2% | $36,032,262 | 10,444,134 | Satter Muneer A | 19 Nov 2025 | |||
| STATE STREET CORP | 6% | $58,552,953 | 9,824,321 | STATE STREET CORPORATION | 30 Jun 2026 | |||
| BIOTECHNOLOGY VALUE FUND L P | 5.4% | $48,187,878 | 8,698,173 | BVF PARTNERS L P/IL | 31 Mar 2026 | |||
| Bain Capital Life Sciences Fund, L.P. | 4.9% | $9,973,231 | 5,249,069 | BCLS I Investco, LP | 31 Dec 2024 | |||
| Point72 Asset Management, L.P. | 0.1% | $181,317 | 95,430 | Point72 Asset Management, L.P. | 31 Mar 2025 |
As of 30 Jun 2026, 214 institutional investors reported holding 178,167,335 shares of Annexon, Inc. - COMMON STOCK (ANNX). This represents 109% of the company’s total 163,738,683 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
85%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 12% | 19,518,496 | +84% | 0% | $111,450,614 |
| BlackRock, Inc. | 8.3% | 13,539,744 | +24% | 0% | $77,311,938 |
| Redmile Group, LLC | 7.2% | 11,869,877 | -18% | 4.6% | $67,776,998 |
| STATE STREET CORP | 6% | 9,824,321 | +42% | 0% | $56,096,873 |
| BVF INC/IL | 5.3% | 8,698,173 | 0% | 1.3% | $49,666,568 |
| Woodline Partners LP | 4.2% | 6,925,067 | +196% | 0.12% | $39,542,133 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2% | 6,871,015 | +15% | 0% | $39,233,496 |
| MAK CAPITAL ONE LLC | 3.6% | 5,862,180 | +24% | 4.7% | $33,473,048 |
| GOLDMAN SACHS GROUP INC | 3.6% | 5,825,579 | +171% | 0% | $33,264,057 |
| Siren, L.L.C. | 2.7% | 4,458,646 | +13% | 0.52% | $25,458,869 |
| Bain Capital Life Sciences Investors, LLC | 2.7% | 4,437,731 | -15% | 1.5% | $25,339,444 |
| Bellevue Group AG | 2.5% | 4,100,016 | -21% | 0.49% | $23,411,091 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.5% | 4,037,193 | +20% | 0% | $23,056,071 |
| MPM BIOIMPACT LLC | 2.2% | 3,544,354 | 1.2% | $20,238,261 | |
| AMERIPRISE FINANCIAL INC | 2.1% | 3,509,623 | +1.8% | 0% | $20,039,948 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2.1% | 3,500,000 | -19% | 0.03% | $19,985,000 |
| GREAT POINT PARTNERS LLC | 2.1% | 3,500,000 | +40% | 4.7% | $19,985,000 |
| MORGAN STANLEY | 1.9% | 3,144,453 | +15% | 0% | $17,954,827 |
| Palo Alto Investors LP | 1.8% | 2,948,090 | 0% | 2.5% | $16,833,594 |
| Balyasny Asset Management L.P. | 1.7% | 2,830,976 | -27% | 0.03% | $16,164,873 |
| Nuveen, LLC | 1.7% | 2,765,080 | -35% | 0% | $15,788,607 |
| Qube Research & Technologies Ltd | 1.7% | 2,749,961 | -12% | 0.02% | $15,702,277 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4% | 2,246,800 | +51% | 0% | $12,829,228 |
| Opaleye Management Inc. | 1% | 1,714,451 | -26% | 0.89% | $9,789,515 |
| Logos Global Management LP | 0.92% | 1,500,000 | 0.37% | $8,565,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
24
Latest
Q2 2026
Rows shown
1-24 of 24
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 178,167,335 | $1,017,160,643 | +$128,757,072 | $5.71 | 214 |
| 2026 Q1 | 155,947,902 | $863,678,464 | +$101,291,553 | $5.54 | 217 |
| 2025 Q4 | 136,923,781 | $687,297,160 | +$183,807,666 | $5.02 | 169 |
| 2025 Q3 | 101,380,733 | $309,219,194 | +$11,142,271 | $3.05 | 143 |
| 2025 Q2 | 99,449,067 | $238,679,312 | +$759,672 | $2.40 | 127 |
| 2025 Q1 | 99,491,910 | $192,036,870 | -$14,234,585 | $1.93 | 146 |
| 2024 Q4 | 111,907,572 | $574,088,227 | +$7,286,342 | $5.13 | 151 |
| 2024 Q3 | 109,990,075 | $651,286,147 | +$12,076,588 | $5.92 | 141 |
| 2024 Q2 | 107,381,777 | $526,166,969 | +$50,550,360 | $4.90 | 139 |
| 2024 Q1 | 94,762,361 | $679,439,424 | +$107,931,991 | $7.17 | 125 |
| 2023 Q4 | 80,514,496 | $365,538,892 | +$125,501,716 | $4.54 | 98 |
| 2023 Q3 | 53,312,574 | $125,814,682 | -$910,472 | $2.36 | 91 |
| 2023 Q2 | 53,372,682 | $187,869,879 | -$1,833,578 | $3.52 | 93 |
| 2023 Q1 | 53,953,057 | $207,583,535 | +$11,598,782 | $3.85 | 98 |
| 2022 Q4 | 47,049,561 | $243,269,266 | +$3,854,655 | $5.17 | 81 |
| 2022 Q3 | 46,270,615 | $285,949,000 | +$49,950,788 | $6.18 | 69 |
| 2022 Q2 | 38,409,280 | $144,864,000 | +$5,360,704 | $3.77 | 74 |
| 2022 Q1 | 38,555,259 | $105,261,060 | -$23,763,559 | $2.73 | 96 |
| 2021 Q4 | 38,766,276 | $445,683,894 | +$6,730,750 | $11.49 | 94 |
| 2021 Q3 | 38,055,922 | $708,635,015 | -$28,821,254 | $18.61 | 81 |
| 2021 Q2 | 38,854,536 | $873,668,672 | +$29,687,677 | $22.51 | 73 |
| 2021 Q1 | 37,426,974 | $1,040,768,344 | +$38,809,119 | $27.84 | 72 |
| 2020 Q4 | 36,208,873 | $904,277,496 | -$17,927,945 | $25.03 | 70 |
| 2020 Q3 | 34,842,574 | $1,039,585,431 | +$1,039,585,431 | $30.23 | 65 |