FEINBERG PETER

PrivateCIK: 1870076
Location

CAMBRIDGE, MA

FEINBERG PETER purchased 17.3% of their position (20K shares) of IMMUNEERING CORP on the open market

Open‑market purchase worth $86.9K — a significant purchase. The strongest form of insider conviction signal.

P · 1 purchase
InsiderFEINBERG PETERCIK 1870076
IssuerIMMUNEERING CORPCIK 1790340
Director
Since Jul 2021
+20K
Net shares
Net buyer
$86.9K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
20K acquired
Non-Derivative Transactions1

Class A Common Stock

Indirect
P · Purchase

Shares

+20K

Price / share

$4.35

Trade value

$86.90K

% of position

17.3%
1/12/2026
115.44K135.44K
Total

Net shares

+20K

Net value

$86.90K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)3

Class A Common Stock

Direct
Shares owned156.77K

Class A Common Stock

Indirect
Shares owned392.24K

Class A Common Stock

Indirect
Shares owned476.62K
Total
156.77K direct·868.86K indirect1.03M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
FEINBERG PETER — Insider Transaction (Form 4) Filed Jan 14, 2026 | Finecho