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SEC Form 4 transaction code

Form 4 Code J: Other Acquisition or Disposition

Code J marks an acquisition or disposition that no other code fits. The filer must describe the transaction, usually in a footnote.

“Other acquisition or disposition (describe transaction)”
SEC Form 4, General Instruction 8 (Transaction Codes), under “Other Transaction Codes”. Form 4 and instructions (PDF, sec.gov)

How often code J appears in real filings

Share of transaction rows
2.3%
1,378 of 58,848 rows, 6th most common
Filings with a code J row
2.9%
674 of 23,544 filings
Companies
193
of 2,152 in the sample
Median days, trade to filing
2
calendar days

944 of the rows are in Table I (non-derivative securities) and 434 in Table II (derivative securities).

Sample: 58,848 transaction rows in 23,544 Form 4 and 4/A filings filed Jul 23 – Nov 9, 2026 by insiders of 2,152 companies with an AlphaScala stock page. Rows are counted as filed; see how the codes are counted.

SEC Form 4 filings as of Nov 9, 2026

Reading code J on a Form 4

General Instruction 8 tells filers to "use the code that most appropriately describes the transaction" and, when the transaction is not listed, to use J and "describe the nature of the transaction in the space for explanation of responses". A J row cannot be read without its footnote.

In AlphaScala’s sample many J rows are indirect holdings: shares moving between trusts the same insider reports for, or held through partnerships and funds. Many such rows change how shares are held; the footnote says what happened.

J is a catch-all, so its rows do not share one meaning. AlphaScala’s insider tables count none of them as purchases or sales.

Code J in real filings

Recent Form 4 lines coded J, chosen from the newest filings in the sample, one company each. Figures are as filed; each links to the filing on sec.gov.

LYBLyondellBasell Industries N.V.

Filing on sec.gov
Insider
AI INVESTMENTS HOLDINGS LLC, 10%+ Owner
Transaction date
Nov 3, 2026
Filed
Nov 5, 2026
Table
I, non-derivative
Shares
12,000,000
Price
–
Shares × price
–
Held after
0 (indirect)
  • AI INVESTMENTS HOLDINGS LLC (10%+ Owner) reported 12,000,000 shares under code J; the filing's footnotes describe the transaction.
  • Shares held after the transaction: 0, held indirectly (By partnership).
  • The same filing also reports 5 code J rows (28,000,000 shares) and 1 code G row (1,000,000 shares).
  • Filed 2 days after the transaction date.

MMEDMiniMed Group, Inc.

Filing on sec.gov
Insider
Medtronic plc, 10%+ Owner
Transaction date
Oct 15, 2026
Filed
Oct 16, 2026
Table
I, non-derivative
Shares
252,813,348
Price
–
Shares × price
–
Held after
0 (direct)
  • Medtronic plc (10%+ Owner) reported 252,813,348 shares under code J; the filing's footnotes describe the transaction.
  • Shares held after the transaction: 0, held directly.
  • Filed 1 day after the transaction date.

LOARLoar Holdings Inc.

Filing on sec.gov
Insider
ABRAMS CAPITAL MANAGEMENT, L.P., 10%+ Owner
Transaction date
Nov 2, 2026
Filed
Nov 3, 2026
Table
I, non-derivative
Shares
11,529,265
Price
$62.11
Shares × price
$716.1M
Held after
32,050,240 (indirect)
  • ABRAMS CAPITAL MANAGEMENT, L.P. (10%+ Owner) reported 11,529,265 shares under code J at $62.11 per share; the filing's footnotes describe the transaction.
  • Shares held after the transaction: 32,050,240, held indirectly (See Footnotes).
  • Filed 1 day after the transaction date.

Codes read alongside J

Questions about these codes

How common is code J on Form 4?

In AlphaScala’s sample of 58,848 Form 4 transaction rows filed Jul 23 – Nov 9, 2026, code J made up 2.3% of rows (1,378) and appeared on 2.9% of filings (674 of 23,544). It was the 6th most common of the 17 codes found.

What does code J mean on Form 4?

The SEC defines it as "other acquisition or disposition (describe transaction)". It is the code for transactions the SEC’s list does not cover, and the filer has to explain the transaction in the footnotes.

Is code J a buy or a sell?

Either. A J row can be an acquisition or a disposition; the acquired-or-disposed column on the form and the footnote say which. Open-market and private purchases and sales have their own codes, P and S.

Where do I find what a code J transaction was?

In the "Explanation of Responses" footnotes at the bottom of the filing. Each example on this page links to the filing on sec.gov.

Definition: SEC Form 4, General Instruction 8 (sec.gov). Examples and counts: AlphaScala's copy of SEC EDGAR Form 4 filings. See all 20 Form 4 transaction codes, insider cluster buys and our methodology.

Educational reference only, not investment advice. Insider transactions have many motives and a Form 4 does not record them. See our risk disclaimer.