Total buying$6.12M2 buys
CTY
CITY THERAPEUTICS, INC.
Insider activity for last month from 09/20 to 10/20.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$00 sells
Net open-market+$6.12MBuying minus selling
Active insiders12Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 19, 2026
Open-market transaction mix · 2 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 0 | 0 | $0 | $0 | $0 |
| Oct 2026 | 2 | 0 | 6 | $6.12M | $0 | $6.12M |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (12)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- AL—
- NR—
- MJ—
- NS+$0
CTY transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period23transactionstxns
- C · Code C · dominant15 · 65%
- A · Grants / awards6 · 26%
- P · Open-market buys2 · 9%
Activity by reported role
A joint filing can contribute to multiple rolesDirector15
10% owner7
Chief executive officer1
PRES1
Reported Holdings After
Separated by insider, security, and ownership type
Nelsen RobertCommon Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Crandell KeithCommon Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Gillis StevenCommon Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Burow KristinaCommon Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Arch Venture Fund Xii, L.P.Common Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Arch Venture Partners Xii, LLCCommon Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Arch Venture Partners Xii, L.P.Common Stock · Indirect · By ARCH Venture Fund XII, L.P.
13,692,507Oct 19, 2026
Greene Barry EStock Option (Right to Buy) · Direct
22,649Oct 15, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 20 → Oct 20
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CITY THERAPEUTICS, INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at CITY THERAPEUTICS, INC.?
ARCH Venture Fund XII, L.P., ARCH Venture Partners XII, LLC, ARCH Venture Partners XII, L.P., Burow Kristina, CRANDELL KEITH, GILLIS STEVEN, NELSEN ROBERT, MARAGANORE JOHN, Nochur Sara, ORTH ANDREW C., Philip Ron M, Greene Barry E.
When was the latest reported open-market purchase?
Arch Venture Partners Xii, LLC reported a buy on Oct 19, 2026 valued at $3.06M. Read the SEC filing.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
Net open-market buying in the selected period was $6,120,000.00. This describes filed transactions, not a bullish rating.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.