James W. Mccollum

Executive

Insider activity · 24 months1 buy0 salesCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 1 buy · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Company

▲ Purchases (2 ops.)

€671k

▼ Sales (0 ops.)

—

Latest filing published 10 Nov 2025 for LENZ Therapeutics, Inc., €207k. Read the official filing

Filing timeline

BuySale

James W. Mccollum

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

James W. Mccollum: trading record in brief

James W. Mccollum appears in our data through filings on LENZ Therapeutics, Inc. shares, published by SEC (Form 4). Over a trading history stretching from 21 March 2024 to 7 November 2025, the count stands at 3 filings.

Purchases make up the whole of the open-market record (2 purchases, €671k). Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 1 share grant. In 2025 alone, the filings show 1 purchase and no sales.

The latest filing, published on 10 November 2025, reports an open-market purchase of €207k in LENZ Therapeutics, Inc. The median gap between a trade and its publication by SEC (Form 4) is 3 days. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.