13F Insight

Chapman Steven Leonard

CIK: 0001711968•CEO AND PRESIDENT
OfficerDirector
Primary company: Natera, Inc. (NTRA)

Chapman Steven Leonard is a corporate insider (CEO AND PRESIDENT) at Natera, Inc. (NTRA) filing SEC Form 4 transactions. 900 transactions, totaling $0 in purchases and $216,960,610 in sales. Source: SEC EDGAR.

AI Insider Summary

Steven Leonard Chapman's Natera record is a single-name story: 891 transactions, all in NTRA, 2.43M shares sold cumulatively with no offsetting buys. What stands out in the recent tape is the price level — the June 4, 2026 lots (3,409 shares at $226.97, 6,751 at $226.15, 6,500 at $223.34) cleared in the low-to-mid $220s, meaning the selling is happening into a strong, not distressed, NTRA tape.

The recent prints matter more for their price than their size. On June 4, 2026 the record shows 3,409 shares at $226.97, 6,751 at $226.15, 1,630 at $224.99, 1,443 at $223.91 and 6,500 at $223.34 — a cluster of sales executed in the low-to-mid $220s. Selling concentrated at those levels tells you the disposition is happening into a firm NTRA quote, which is consistent with scheduled diversification by a long-tenured executive rather than an exit ahead of weakness.

For anyone monitoring Natera insider flow, Chapman is a structural seller: the meaningful variable is the price band he is clearing at, and right now that band sits comfortably above $220. The cadence — many same-day lots — points to plan-based execution working an order through the book.

Analysis generated by 13F Insight from SEC Form 4 filing data. Methodology
Total Transactions
900
Total Buy Value
$0
Total Sell Value
$216.96M
Net Activity
$-216.96M
Last Transaction
Aug 2026
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Sale
Shares
612
Price
$268.22
Value
$164K
Type
Sale
Shares
296
Price
$267.08
Value
$79K
Type
Sale
Shares
80
Price
$265.27
Value
$21K
Type
Sale
Shares
676
Price
$263.86
Value
$178K
Type
Sale
Shares
70
Price
$261.02
Value
$18K
Type
Sale
Shares
160
Price
$259.98
Value
$42K
Type
Sale
Shares
1,182
Price
$267.99
Value
$317K
Type
Sale
Shares
3,580
Price
$254.07
Value
$910K
Type
Sale
Shares
2,190
Price
$260.49
Value
$570K
Type
Sale
Shares
3,409
Price
$226.97
Value
$774K
Type
Sale
Shares
6,751
Price
$226.15
Value
$1.53M
Type
Sale
Shares
1,630
Price
$224.99
Value
$367K
Type
Sale
Shares
1,443
Price
$223.91
Value
$323K
Type
Sale
Shares
6,500
Price
$223.34
Value
$1.45M
Type
Sale
Shares
2,006
Price
$222.25
Value
$446K
Type
Sale
Shares
2,400
Price
$220.19
Value
$528K
Type
Sale
Shares
2,758
Price
$219.08
Value
$604K
Type
Sale
Shares
1,742
Price
$218.28
Value
$380K
Type
Sale
Shares
2,351
Price
$217.04
Value
$510K
Type
Sale
Shares
5,499
Price
$216.13
Value
$1.19M