Steven Leonard Chapman Insider Trading Activity

Corporate InsiderCEO · CIK 1711968

48

Total trades

$86.6M

Total volume

May 1, 2026

Last activity

NTRA

Natera, Inc.

Steven Leonard Chapman has been net-selling over the last 12 months with 0 purchases and 45 sales across 1 company.

NTRA is the most-traded position with 45 trades. The largest single transaction was a sale of NTRA for $31.3M on Nov 3, 2025.

Performance Scorecard

Forward stock performance after each transaction by Steven Leonard Chapman. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days—-2.4%50%48
90 days—-10.9%45%44
120 days—-13.5%39%41

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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NTRA · Natera, Inc.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEROLE
May 1, 2026NTRASell902$206.16$186KCEO
Apr 27, 2026NTRASell3,566$204.39$729KCEO
Apr 27, 2026NTRASell2,272$203.75$463KCEO
Mar 10, 2026NTRASell5,623$204.13$1.1MCEO
Mar 2, 2026NTRASell2,463$200.24$493KCEO
Mar 2, 2026NTRASell365$201.18$73KCEO
Mar 2, 2026NTRASell1,122$199.17$223KCEO
Feb 3, 2026NTRASell4,725$230.77$1.1MCEO
Feb 2, 2026NTRASell7,445$233.31$1.7MCEO
Feb 2, 2026NTRASell6,631$229.08$1.5MCEO
Feb 2, 2026NTRASell41,847$230.03$9.6MCEO
Feb 2, 2026NTRASell20,079$230.95$4.6MCEO
Feb 2, 2026NTRASell9,197$232.41$2.1MCEO
Feb 2, 2026NTRASell100$234.00$23KCEO
Jan 28, 2026NTRASell3,648$237.66$867KCEO
Jan 27, 2026NTRASell2,322$240.53$559KCEO
Jan 21, 2026NTRASell1,590$235.00$374KCEO
Jan 20, 2026NTRASell71,932$234.74$16.9MCEO
Jan 2, 2026NTRASell2,214$228.64$506KCEO
Jan 2, 2026NTRASell1,634$229.67$375KCEO
Dec 1, 2025NTRASell1,394$237.05$330KCEO
Dec 1, 2025NTRASell2,050$238.13$488KCEO
Dec 1, 2025NTRASell956$239.44$229KCEO
Nov 3, 2025NTRASell1,915$198.96$381KCEO
Nov 3, 2025NTRASell2,215$198.03$439KCEO
Nov 3, 2025NTRASell156,573$200.00$31.3MCEO
Oct 28, 2025NTRASell3,680$191.46$705KCEO
Oct 27, 2025NTRASell2,335$192.32$449KCEO
Oct 21, 2025NTRASell1,603$187.95$301KCEO
Oct 1, 2025NTRASell9,003$159.78$1.4MCEO
Oct 1, 2025NTRASell634$158.84$101KCEO
Oct 1, 2025NTRASell3,976$160.49$638KCEO
Oct 1, 2025NTRASell470$161.47$76KCEO
Sep 30, 2025NTRASell9,109$162.05$1.5MCEO
Sep 2, 2025NTRASell1,907$167.69$320KCEO
Sep 2, 2025NTRASell1,700$165.44$281KCEO
Sep 2, 2025NTRASell1,472$166.29$245KCEO
Aug 1, 2025NTRASell2,810$132.43$372KCEO
Aug 1, 2025NTRASell2,997$133.31$400KCEO
Jul 28, 2025NTRASell6,092$139.81$852KCEO
Jul 21, 2025NTRASell1,622$139.29$226KCEO
Jul 1, 2025NTRASell1,008$164.00$165KCEO
Jul 1, 2025NTRASell500$165.83$83KCEO
Jul 1, 2025NTRASell3,187$167.19$533KCEO
Jul 1, 2025NTRASell648$167.77$109KCEO
Jun 2, 2025NTRASell1,512$156.07$236KCEO
Jun 2, 2025NTRASell3,123$157.03$490KCEO
Jun 2, 2025NTRASell1,476$158.33$234KCEO

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
NTRANatera, Inc.48$86.6M

Other insiders at Natera, Inc.

10 other tracked filers at NTRA.

Jonathan Sheena

Director

115

Trades

Solomon Moshkevich

President

61

Trades

Matthew Rabinowitz

EXECUTIVE CHAIRMAN

45

Trades

Michael Brophy Burkes

CFO

44

Trades

Daniel Rabinowitz

SEC. AND CHIEF LEGAL OFFICER

28

Trades

Fesko John

President

18

Trades

Roelof Botha

Director

11

Trades

Baynes Roy D.

Director

8

Trades

Marcus Gail Boxer

Director

7

Trades

Herm Rosenman

Director

4

Trades