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Insider · CIK 0001936203

James Coulston

cfoofficer

Files at PROK (PROKIDNEY CORP.). First filing -, latest -.

In brief

James Coulston files SEC Form 4 as CFO at PROK (PROKIDNEY CORP.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; James Coulston has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 2 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Mar 1, 2026PROK
PROKIDNEY CORP.
AGrant or award
Employee stock option (right to buy)derivative
+600,000$0.00$0600,000Mar 3, 2026
Mar 1, 2025PROK
PROKIDNEY CORP.
AGrant or award
Employee stock option (right to buy)derivative
+650,000$0.00$0650,000Mar 4, 2025

Questions about James Coulston

Answered from the filings on this page, as of the latest one.

Is James Coulston buying or selling?

James Coulston has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did James Coulston's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and James Coulston has 0.

Where does James Coulston file Form 4?

James Coulston has filed Form 4 at PROK (PROKIDNEY CORP.) as Chief Financial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

James Coulston: insider trades and track record | InsiderTell