ANAB

Anaptysbio Inc
Health CareUSCUSIP 032724106◍ Confluence graph
Tracked 13F Holders
185
-108 QoQ
13F Value (tracked)
$1.6B
Insider Net · 180d
-$2.2M
0↑ 2↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)35 adding · 21 trimming
Insider net (180d)-$2.2M

Who owns ANAB?

185 tracked 13F filers

185 tracked 13F filers disclose a position in ANAB as of the latest SEC 13F filings, a combined $1.6B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1EcoR1 Capital, LLC
$437.0M
7.9M
Held
Q1 2026
2BlackRock, Inc.
$93.2M
1.7M
−3.0%
Reduced · −53K sh
Q1 2026
3TANG CAPITAL MANAGEMENT LLC
$73.8M
1.3M
−0.1%
Reduced · −1K sh
Q1 2026
4STATE STREET CORP
$86.8M
1.3M
+30%
Added · +294K sh
Q2 2026
5MORGAN STANLEY
$55.1M
994K
−3.9%
Reduced · −41K sh
Q1 2026
6Affinity Asset Advisors, LLC
$52.1M
940K
+111%
Added · +495K sh
Q1 2026
7VANGUARD CAPITAL MANAGEMENT LLC
$47.3M
853K
First observed position
No prior filed position
Q1 2026
8Sanofi
$55.5M
822K
Held
Q2 2026
9683 Capital Management, LLC
$44.6M
660K
+5.6%
Added · +35K sh
Q2 2026
10GEODE CAPITAL MANAGEMENT, LLC
$43.1M
638K
+23%
Added · +118K sh
Q2 2026
11Palo Alto Investors LP
$40.7M
603K
−5.4%
Reduced · −35K sh
Q2 2026
12D. E. Shaw & Co., Inc.
$32.1M
579K
−14%
Reduced · −91K sh
Q1 2026
13First Light Asset Management, LLC
$31.4M
565K
−13%
Reduced · −81K sh
Q1 2026
14VANGUARD PORTFOLIO MANAGEMENT LLC
$28.8M
520K
First observed position
No prior filed position
Q1 2026
15BANK OF AMERICA CORP /DE/
$27.8M
501K
+283%
Added · +370K sh
Q1 2026
16Sofinnova Investments, Inc.
$33.3M
494K
+99%
Added · +245K sh
Q2 2026
17ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$27.3M
492K
−12%
Reduced · −68K sh
Q1 2026
18MILLENNIUM MANAGEMENT LLC
$26.4M
476K
−42%
Reduced · −338K sh
Q1 2026
19FMR LLC
$26.2M
473K
17×
Added · +446K sh
Q1 2026
20TWO SIGMA INVESTMENTS, LP
$25.8M
465K
+81%
Added · +208K sh
Q1 2026
21FEDERATED HERMES, INC.
$20.2M
364K
+22%
Added · +65K sh
Q1 2026
22Woodline Partners LP
$19.1M
344K
−31%
Reduced · −157K sh
Q1 2026
23GOLDMAN SACHS GROUP INC
$18.5M
333K
−17%
Reduced · −66K sh
Q1 2026
24Nuveen, LLC
$17.5M
316K
−0.2%
Reduced · −620 sh
Q1 2026
25Squarepoint Ops LLC
$14.8M
268K
+67%
Added · +107K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is ANAB being bought or sold by institutions?

Last quarter, 13 funds opened a new position in ANAB and 22 added to an existing one, while 21 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
13
funds
Added
22
funds
Reduced
21
funds
Exited
0
funds

Funds that own ANAB also own

CompanyCo-held byCombined value
ELI LILLY & COLLY92 funds$55.9B
AMAZON.COM INCAMZN91 funds$134.8B
MICROSOFT CORPMSFT89 funds$185.3B
NVIDIA CORPNVDA88 funds$271.1B
META PLATFORMS INC-CLASS AMETA88 funds$75.6B
MICRON TECHNOLOGY INCMU88 funds$26.9B
LAM RESEARCH CORPLRCX87 funds$24.9B
ALPHABET INC-CL AGOOGL86 funds$110.4B
GENERAL ELECTRICGE86 funds$19.9B
GILEAD SCIENCES INCGILD86 funds$12.7B
APPLE INCAAPL85 funds$207.2B
BROADCOM INCAVGO85 funds$112.0B

Ranked by how many of ANAB's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$2.2M
2 insiders
Net
-$2.2M
13 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Mar 30, 2026Schmid John P.DirectorSell (S)13K$702K
Mar 30, 2026Schmid John P.DirectorSell (S)8K$427K
Mar 30, 2026Schmid John P.DirectorSell (S)522$30K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)100$7K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)3K$198K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)3K$203K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)3K$164K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)1K$63K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)550$33K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)490$29K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)4K$215K
Mar 27, 2026Faga DanielPresident, CEO, DirectorSell (S)510$29K

Institutional ownership over time

74 funds-46 since Q3 2024
091182Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $338.9M

Recent filings

15 shown

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Connected entities for ANAB

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Ask your agent what changed in ANAB

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/ANAB/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for ANAB.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ANAB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.