Form 4 code · Derivative

Code C: conversion of derivative security.

Conversion of a derivative security, for example preferred stock converted into common stock. Changes the form of the holding rather than adding exposure.

Quarter: Q3 2026
Non-derivative rows: 903
Derivative rows: 854
Share of non-derivative: 1.5%

Recent code C transactions

Latest-dated code C rows in Q3 2026. Shares and prices are as filed.
Date	Issuer	Insider	Shares	Price	Filing
2026-09-30	Pinterest, Inc.	Silbermann Benjamin	46,875	$0	4
2026-09-29	Cerebras Systems Inc.	Mallick Dhiraj	276,000	$0	4
2026-09-29	Pinterest, Inc.	Silbermann Benjamin	46,875	$0	4
2026-09-28	Workday, Inc.	Duffield David A	98,971	$0	4
2026-09-28	ADARx Pharmaceuticals, Inc.	OrbiMed Genesis GP LLC / OrbiMed Israel GP II, L.P. / OrbiMed Capital GP VII LLC / OrbiMed Advisors Israel II Ltd / ORBIMED ADVISORS LLC	1,333,975	—	4
2026-09-28	ADARx Pharmaceuticals, Inc.	OrbiMed Genesis GP LLC / OrbiMed Israel GP II, L.P. / OrbiMed Capital GP VII LLC / OrbiMed Advisors Israel II Ltd / ORBIMED ADVISORS LLC	2,000,962	—	4

Query code C transactions

Request with your API key

curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&transactionCode=C&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Insider trading API · Insider trading by company

Questions

What does transaction code C mean on Form 4?

Conversion of a derivative security, for example preferred stock converted into common stock. Changes the form of the holding rather than adding exposure.

How common is code C?

In Q3 2026, code C appeared on 903 non-derivative and 854 derivative transaction rows in the SEC insider transactions data set (1.5% of non-derivative rows).

Other codes

P: Open market or S: Open market or V: Voluntarily reported earlier A: Grant, award or D: Disposition to the F: Payment of exercise I: Discretionary transaction M: Exercise or conversion E: Expiration of short H: Expiration or cancellation O: Exercise of out-of-the-money X: Exercise of in-the-money G: Bona fide gift L: Small acquisition under W: Acquisition or disposition Z: Deposit into or J: Other acquisition or K: Transaction in equity U: Disposition pursuant to

Meaning: Form 4 General Instructions, Instruction 8. Counts and examples: SEC insider transactions data sets, Q3 2026.

Plain-text version for agents and LLMs: /form-4-transaction-codes/c.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.