ARCH VENTURE PARTNERS XII, LLC

PrivateCIK: 1979548
Location

CHICAGO, IL

ARCH VENTURE PARTNERS XII, LLC purchased 1.3% of their position (170K shares) of CITY THERAPEUTICS, INC. on the open market

Open‑market purchase worth $3.06M — a small addition. The strongest form of insider conviction signal.

P · 1 purchase
→
IssuerCITY THERAPEUTICS, INC.CIK 2143850
10% Owner
Since Oct 2026
+1.14M
Net shares
Net buyer
$3.06M
Total acquired
1
Open market trades
1B · 0S
7
Total transactions
10.97M acquired · 9.84M disposed
Non-Derivative Transactions4

Common Stock

Indirect
C · Conversion

Shares

+3.29M

Price / share

—

Trade value

—

% of position

121.2%
10/19/2026
2.72M→6.01M

Common Stock

Indirect
C · Conversion

Shares

+5.48M

Price / share

—

Trade value

—

% of position

91.2%
10/19/2026
6.01M→11.50M

Common Stock

Indirect
C · Conversion

Shares

+2.03M

Price / share

—

Trade value

—

% of position

17.6%
10/19/2026
11.50M→13.52M

Common Stock

Indirect
P · Purchase

Shares

+170K

Price / share

$18.00

Trade value

$3.06M

% of position

1.3%
10/19/2026
13.52M→13.69M
Total

Net shares

+10.97M

Net value

$3.06M

Derivative Transactions3

Series Seed convertible preferred stock

Indirect
C · Conversion
Converts to

Common Stock

3.29M shares

Shares

−3M

Strike price

Held after

0.00

Exercisable

—

10/19/2026

Series A convertible preferred stock

Indirect
C · Conversion
Converts to

Common Stock

5.48M shares

Shares

−4.99M

Strike price

Held after

0.00

Exercisable

—

10/19/2026

Series B convertible preferred stock

Indirect
C · Conversion
Converts to

Common Stock

2.03M shares

Shares

−1.85M

Strike price

Held after

0.00

Exercisable

—

10/19/2026
ARCH VENTURE PARTNERS XII, LLC — Insider Transaction (Form 4) Filed Oct 19, 2026 | Finecho