Reporting owner · CIK 0001711968

Chapman Steven Leonard

Visual SEC Form 4 history across 1 companies, 29 transactions and 8 filings.

CEO, PRESCEO AND PRESIDENTNatera, Inc.
Open-market mix
Latest filingSep 04, 2026, 01:05 AM
Filings8Form 4 records
Buying$00 purchases
Selling$49.9M21 sales
Net value−$49.9MBuys minus sells
Companies12 securities
Most recentSep 01, 2026sale

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
Forward return is not available yet

We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.

Monthly open-market activity

Reported purchase and sale transaction counts

Buys Sells
1050-5-106Jan 255Mar 252Jan 267Feb 261Sep 26

Net value flow

Buys minus sells

Jan 25
−$15.2M
Mar 25
−$12.5M
Jan 26
−$881.5K
Feb 26
−$20.8M
Sep 26
−$545K

Transaction texture

Ownership and ticket size

Average P/S size$2.4M
Median P/S size$1.5M
Direct29
Indirect0
Sep 01, 2026sale

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern18Delayed Filingfiling-context3Derivative Transactionfiling-context3Direct Ownershipfiling-context28Large Holdings Increaseholdings1Large Holdings Reductionholdings3Large Salesize12Repeat Sellerpattern1610b5-1 Detectedfiling-context24

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at Natera, Inc. on Sep 01, 2026 valued at $545,041.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Associated companies

Visual map of known reporting history

NTRANatera, Inc.29 transactions · latest Sep 04, 2026, 01:05 AM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
NTRAChapman Steven Leonard
CEOPRES
sale10b5-11.69k-$54.5MS
Direct Ownership 10b5-1 Detected
0.0%09/0409/01
NTRAChapman Steven Leonard
CEOPRES
sale10b5-14.72k-$109MS
Cluster Selling Direct Ownership Large Sale+2
+9.1%02/0502/03
NTRAChapman Steven Leonard
CEOPRES
sale10b5-1100-$2.34MS
Cluster Selling Direct Ownership Repeat Seller+1
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-17.44k-$173MS
Cluster Selling Direct Ownership Large Sale+2
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-19.19k-$213MS
Cluster Selling Direct Ownership Large Sale+2
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-120.0k-$463MS
Cluster Selling Direct Ownership Large Sale+2
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-141.8k-$962MS
Cluster Selling Direct Ownership Large Holdings Reduction+3
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-16.63k-$151MS
Cluster Selling Direct Ownership Large Sale+1
+9.1%02/0502/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-11.63k-$37.5MS
Direct Ownership Repeat Seller 10b5-1 Detected
−17.7%01/0701/02
NTRAChapman Steven Leonard
CEOPRES
sale10b5-12.21k-$50.6MS
Direct Ownership 10b5-1 Detected
−17.7%01/0701/02

Chapman Steven Leonard Insider Activity FAQ

SEC Form 4 context

Who is Chapman Steven Leonard?

Chapman Steven Leonard is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001711968.

Which companies has Chapman Steven Leonard reported transactions for?

Natera, Inc.

When was Chapman Steven Leonard's latest insider buy?

No open-market insider purchase is available for this period.

When was Chapman Steven Leonard's latest insider sale?

sale at Natera, Inc. on Sep 01, 2026 valued at $545,041.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.