ARCH Venture Partners XII, LLC Insider Trades & Stock Holdings

10% Owner · City Therapeutics, Inc. · Latest filing Oct 19, 2026

ARCH Venture Partners XII, LLC, 10% Owner at City Therapeutics, Inc. has 1 Form 4 trade on file since Oct 19, 2026. Open-market activity: 1 purchase ($3.06M) and 0 sales ($0), net +$3.06M. Latest filing: acquired 170K shares of $CTY on Oct 19, 2026 at $18.

Trades on file

1

Open-market bought

$3.06M

Open-market sold

$0

Net open-market

+$3.06M

Shares held ($CTY)

13.69M

Latest filing

Oct 19, 2026

Shares held by ARCH Venture Partners XII, LLC

• $CTY13.69M sh

Shares owned after the most recent Form 4 for each company.

All insider trades by ARCH Venture Partners XII, LLC

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 19, 2026	$CTY	Buy (Open-market buy)	170K	$18	$3.06M	13.69M	+1.26%				10% Owner	SEC	Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks ARCH Venture Partners XII, LLC traded

• $CTY

Frequently asked questions

Has ARCH Venture Partners XII, LLC been buying or selling stock?

ARCH Venture Partners XII, LLC has 1 open-market purchase and 0 open-market sales on file, net +$3.06M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was ARCH Venture Partners XII, LLC's latest insider trade?

acquired 170K shares of $CTY on Oct 19, 2026 at $18.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.