Loumeau Eric J

Insider·ANAPTYSBIO, INC·ANAB·Insider since 2025·Form 4 filings: 13
Trades YTD
7
Trades (12m)
13
Net position
Current holdings
P-code buys (12m)
0
Cluster
None

Transaction history · last 12 months

13 transactions
11 Feb 2026
SOLD
$ANAB
10,000
$54.00
S
08 Jan 2026
SOLD
$ANAB
2,210
$44.71
S
07 Jan 2026
SOLD
$ANAB
500
$47.23
S
07 Jan 2026
SOLD
$ANAB
1,841
$46.13
S
07 Jan 2026
SOLD
$ANAB
5,281
$45.38
S
07 Jan 2026
SOLD
$ANAB
2,017
$45.11
S
05 Jan 2026
SOLD
$ANAB
2,983
$43.26
S
22 Dec 2025
SOLD
$ANAB
10,000
$51.00
S
18 Dec 2025
SOLD
$ANAB
141
$46.99
S
17 Dec 2025
SOLD
$ANAB
10,000
$46.00
S
16 Dec 2025
SOLD
$ANAB
4,195
$45.24
S
16 Dec 2025
SOLD
$ANAB
8,305
$44.68
S
30 Sep 2025
SOLD
$ANAB
8,240
$29.00
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant.

Cluster context · ANAPTYSBIO, INC

last 30 days

No active insider cluster at ANAPTYSBIO, INC in the last 30 days. J's recent transactions appear in the section above.

Convergence · Pattern Engine ships in v1.1

30-day window
In development

Convergence participation lands with the Pattern Engine.

Once the Pattern Engine ships, this section will list every active convergence event J is named in — the hedge funds and Congress members on the same name, the 30-day window, and the combined position size.

Context

Form 4 background

Form 4 filings are required within two business days of any insider transaction by an officer, director, or 10%+ shareholder. Open-market purchases (transaction code P) are the most signal-rich because they indicate the insider is paying market price with personal cash — as distinct from option exercises, scheduled sales, or compensation grants. Cluster buying — three or more insiders of the same company buying open-market shares in a 30-day window — has historically been one of the strongest positive insider-trading signals in the academic literature.

Source data: SEC EDGAR · Form 4 filings · Last refreshed 12:15 UTC.