PZ
Peter M Ziemba
Chief Administrative Officer

Peter M Ziemba insider trades: WisdomTree (WT) stock buys and sales

Chief Administrative Officer, WisdomTree Last trade May 19, 2026 60 Form 4 filings
$1.9M
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
17
Open-market trades
since 2012
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Peter reports to the SEC

Open-market buys and sales

17 trades reported on SEC Form 4, newest first

DateStockTypeValue
May 19, 2026WT↓ Sell$1.9M
Nov 15, 2024WT↓ Sell$1.1M
Aug 17, 2023WT↓ Sell$698K
Nov 17, 2021WETF↓ Sell$34K
Feb 3, 2020WETF↑ Buy$105K
Feb 4, 2019WETF↑ Buy$97K
Aug 5, 2015WETF↓ Sell$26K
May 7, 2015WETF↓ Sell$3.8M
Mar 2, 2015WETF↓ Sell$960K
Aug 25, 2014WETF↓ Sell$552K
Jun 14, 2013WETF↓ Sell$603K
Mar 12, 2013WETF↓ Sell$15K
Feb 11, 2013WETF↓ Sell$24K
Aug 21, 2012WETF↓ Sell$673K
Aug 16, 2012WETF↓ Sell$66K
Aug 15, 2012WETF↓ Sell$595K
Feb 3, 2012WETF↓ Sell$1.1M

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other WT insiders

Open-market trades in the last 12 months

About Peter M Ziemba's insider trades

Peter M Ziemba is Chief Administrative Officer at WisdomTree (WT). Since Feb 3, 2012, Peter has reported 2 open-market purchases worth $202K and 15 sales worth $12.2M on SEC Form 4. In the last 12 months: 1 sale ($1.9M).

Their filings also include shares withheld for taxes (26 filings), grants and awards (16 filings), gifts (12 filings), option exercises (11 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every WT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.