Stefan A Dyckerhoff - Net Worth and Insider Trading

Stefan A Dyckerhoff Net Worth

The estimated net worth of Stefan A Dyckerhoff is at least $716 Million dollars as of 2025-05-05. Stefan A Dyckerhoff is the 10% Owner of Corcept Therapeutics Inc and owns about 5,420,353 shares of Corcept Therapeutics Inc (CORT) stock worth over $394 Million. Stefan A Dyckerhoff is the Former 10% Holder of Forty Seven Inc and owns about 2,947,677 shares of Forty Seven Inc (FTSV) stock worth over $282 Million. Stefan A Dyckerhoff is also the Director of Astera Labs Inc and owns about 514,630 shares of Astera Labs Inc (ALAB) stock worth over $37 Million. Besides these, Stefan A Dyckerhoff also holds Mattersight Corp (MATR) , Molecular Templates Inc (MTEM) , Juniper Networks Inc (JNPR) , Pure Storage Inc (PSTG) . Details can be seen in Stefan A Dyckerhoff's Latest Holdings Summary section.

Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Stefan A Dyckerhoff has not made any transactions after 2024-11-26 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Stefan A Dyckerhoff

Stefan A Dyckerhoff Insider Ownership Reports

Based on ownership reports from SEC filings, as the reporting owner, Stefan A Dyckerhoff owns 10 companies in total, including Snowflake Inc (SNOW) , Forty Seven Inc (FTSV) , and Pure Storage Inc (PSTG) among others .

Click here to see the complete history of Stefan A Dyckerhoff’s form 4 insider trades.

Insider Ownership Summary of Stefan A Dyckerhoff

Ticker	Company	Transaction Date	Type of Owner
SNOW	Snowflake Inc	2020-09-15	10 percent owner
FTSV	Forty Seven Inc	2018-07-02	other: Former 10% Holder
PSTG	Pure Storage Inc	2018-01-11	10 percent owner
		2017-04-12	10 percent owner
		2017-10-11	10 percent owner
		2017-06-01	10 percent owner
		2014-10-01	10 percent owner
		2013-03-20	10 percent owner
		2012-11-01	10 percent owner
		2011-02-25	EVP and GM of IPG

Stefan A Dyckerhoff Latest Holdings Summary

Stefan A Dyckerhoff currently owns a total of 7 stocks. Among these stocks, Stefan A Dyckerhoff owns 5,420,353 shares of Corcept Therapeutics Inc (CORT) as of November 1, 2012, with a value of $394 Million and a weighting of 55.13%. Stefan A Dyckerhoff owns 2,947,677 shares of Forty Seven Inc (FTSV) as of July 2, 2018, with a value of $282 Million and a weighting of 39.35%. Stefan A Dyckerhoff also owns 514,630 shares of Astera Labs Inc (ALAB) as of November 26, 2024, with a value of $37 Million and a weighting of 5.13%. The other 4 stocks Mattersight Corp (MATR) , Molecular Templates Inc (MTEM) , Juniper Networks Inc (JNPR) , Pure Storage Inc (PSTG) have a combined weighting of 0.4% among all his current holdings.

Latest Holdings of Stefan A Dyckerhoff

Ticker	Company	Latest Transaction Date	Shares Owned	Current Price ($)	Current Value ($)
CORT	Corcept Therapeutics Inc	2012-11-01	5,420,353	72.77	394,439,088
FTSV	Forty Seven Inc	2018-07-02	2,947,677	95.51	281,532,630
ALAB	Astera Labs Inc	2024-11-26	514,630	71.27	36,677,680
MATR	Mattersight Corp	2017-06-01	1,078,247	2.68	2,884,311
MTEM	Molecular Templates Inc	2014-10-01	28,578	0.00	3
JNPR	Juniper Networks Inc	2011-02-25	0	36.63	0
PSTG	Pure Storage Inc	2018-01-11	0	47.84	0

Holding Weightings of Stefan A Dyckerhoff

Stefan A Dyckerhoff Form 4 Trading Tracker

According to the SEC Form 4 filings, Stefan A Dyckerhoff has made a total of 0 transactions in Corcept Therapeutics Inc (CORT) over the past 5 years. The most-recent trade in Corcept Therapeutics Inc is the sale of 0 shares on November 1, 2012, which brought Stefan A Dyckerhoff around $0.

According to the SEC Form 4 filings, Stefan A Dyckerhoff has made a total of 0 transactions in Forty Seven Inc (FTSV) over the past 5 years. The most-recent trade in Forty Seven Inc is the acquisition of 136,650 shares on July 2, 2018, which cost Stefan A Dyckerhoff around $2 Million.

According to the SEC Form 4 filings, Stefan A Dyckerhoff has made a total of 4 transactions in Astera Labs Inc (ALAB) over the past 5 years, including 0 buys and 4 sells. The most-recent trade in Astera Labs Inc is the sale of 45,629 shares on November 26, 2024, which brought Stefan A Dyckerhoff around $5 Million.

More details on Stefan A Dyckerhoff's insider transactions can be found in the Insider Trading History of Stefan A Dyckerhoff table.

Insider Trading History of Stefan A Dyckerhoff

No transactions are available. GuruFocus only tracks and displays the purchase and sale of non-derivative security in open market or private transactions from SEC filings with the transaction code of P or S.

Total 0

Only the transactions in Open Market or Private Sale at the market prices are included. Other transactions such as conversion of derivative security or exercise of options are not included. Insiders are limited to only officers and/or directors of the company.

Stefan A Dyckerhoff Trading Performance

GuruFocus tracks the stock performance after each of Stefan A Dyckerhoff's buying transactions within different timeframes. To be detailed, the average return of stocks after 3 months bought by Stefan A Dyckerhoff is -5%. GuruFocus also compares Stefan A Dyckerhoff's trading performance to market benchmark return within the same time period. The performance of stocks bought by Stefan A Dyckerhoff within 3 months outperforms 0 times out of 2 transactions in total compared to the return of S&P 500 within the same period.

You can select different timeframes to see how Stefan A Dyckerhoff's insider trading performs compared to the benchmark.

Please note GuruFocus will not track the insiders’ transaction performance if he/she does not have buying transactions.

Performance of Stefan A Dyckerhoff

Average Return

Average return per transaction

Outperforming Transactions

1 out of 2 outperforming transactions.

Each transaction is measured over a period and compared to .

	1 Month	3 Months	6 Months	1 Year	2 Years	3 Years
Return(%)	-1.98
Relative Return to S&P 500(%)	-3.69

Stefan A Dyckerhoff Ownership Network

Ownership Network List of Stefan A Dyckerhoff

No Data

Ownership Network Relation of Stefan A Dyckerhoff

Stefan A Dyckerhoff Owned Company Details

What does Snowflake Inc do?

Who are the key executives at Snowflake Inc?

Stefan A Dyckerhoff is the 10 percent owner of Snowflake Inc. Other key executives at Snowflake Inc include SVP & Product Management Christian Kleinerman , director & 10 percent owner & President of Products Benoit Dageville , and director & 10 percent owner Michael L Speiser .

Snowflake Inc (SNOW) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Snowflake Inc (SNOW). Other recent insider transactions involving Snowflake Inc (SNOW) include a net sale of 240,149 shares made by Christian Kleinerman , a net sale of 299,594 shares made by Benoit Dageville , and a net sale of 1,758,699 shares made by Frank Slootman .

In summary, during the past 3 months, insiders sold 464,776 shares of Snowflake Inc (SNOW) in total and bought 0 shares, with a net sale of 464,776 shares. During the past 18 months, 3,406,396 shares of Snowflake Inc (SNOW) were sold and 110,772 shares were bought by its insiders, resulting in a net sale of 3,295,624 shares.

Snowflake Inc (SNOW)'s detailed insider trading history can be found in Insider Trading Tracker table.

Snowflake Inc Insider Transactions

No Available Data

What does Forty Seven Inc do?

Who are the key executives at Forty Seven Inc?

Stefan A Dyckerhoff is the other: Former 10% Holder of Forty Seven Inc. Other key executives at Forty Seven Inc include Chief Financial Officer Ann D Rhoads , 10 percent owner Lightspeed General Partner X, L.p. , and 10 percent owner Lightspeed Ultimate General Partner X, Ltd. .

Forty Seven Inc (FTSV) Insider Trades Summary

In summary, during the past 3 months, insiders sold 0 shares of Forty Seven Inc (FTSV) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Forty Seven Inc (FTSV) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.

Forty Seven Inc (FTSV)'s detailed insider trading history can be found in Insider Trading Tracker table.

Forty Seven Inc Insider Transactions

No Available Data

What does Pure Storage Inc do?

Who are the key executives at Pure Storage Inc?

Stefan A Dyckerhoff is the 10 percent owner of Pure Storage Inc. Other key executives at Pure Storage Inc include Chief Revenue Officer Dan Fitzsimons , Chief Accounting Officer Mona Chu , and director & Chief Technology Officer John Colgrove .

Pure Storage Inc (PSTG) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Pure Storage Inc (PSTG). Other recent insider transactions involving Pure Storage Inc (PSTG) include a net sale of 1,000,000 shares made by John Colgrove , a net sale of 109,263 shares made by Dan Fitzsimons , and a net sale of 63,958 shares made by Mona Chu .

In summary, during the past 3 months, insiders sold 15,872 shares of Pure Storage Inc (PSTG) in total and bought 0 shares, with a net sale of 15,872 shares. During the past 18 months, 1,805,140 shares of Pure Storage Inc (PSTG) were sold and 0 shares were bought by its insiders, resulting in a net sale of 1,805,140 shares.

Pure Storage Inc (PSTG)'s detailed insider trading history can be found in Insider Trading Tracker table.

Pure Storage Inc Insider Transactions

No Available Data

What does Yext Inc do?

Who are the key executives at Yext Inc?

Stefan A Dyckerhoff is the 10 percent owner of Yext Inc. Other key executives at Yext Inc include Chief Accounting Officer Darryl Bond , General Counsel Ho Shin , and director & President Brian Distelburger .

Yext Inc (YEXT) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Yext Inc (YEXT). Other recent insider transactions involving Yext Inc (YEXT) include a net sale of 300,000 shares made by Michael Walrath , a net sale of 55,000 shares made by Ho Shin , and a net purchase of 32,600 shares made by Seth H. Waugh .

In summary, during the past 3 months, insiders sold 0 shares of Yext Inc (YEXT) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 377,000 shares of Yext Inc (YEXT) were sold and 32,600 shares were bought by its insiders, resulting in a net sale of 344,400 shares.

Yext Inc (YEXT)'s detailed insider trading history can be found in Insider Trading Tracker table.

Yext Inc Insider Transactions

No Available Data

What does Venus Concept Inc do?

Who are the key executives at Venus Concept Inc?

Stefan A Dyckerhoff is the 10 percent owner of Venus Concept Inc. Other key executives at Venus Concept Inc include 10 percent owner Michael Willingham Masters , President Global Sales Ross Portaro , and 10 percent owner Masters Special Situations, Llc .

Venus Concept Inc (VERO) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Venus Concept Inc (VERO). Other recent insider transactions involving Venus Concept Inc (VERO) include a net sale of 958,979 shares made by Michael Willingham Masters , and a net sale of 42,768 shares made by Anthony Natale .

In summary, during the past 3 months, insiders sold 0 shares of Venus Concept Inc (VERO) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 91,068 shares of Venus Concept Inc (VERO) were sold and 0 shares were bought by its insiders, resulting in a net sale of 91,068 shares.

Venus Concept Inc (VERO)'s detailed insider trading history can be found in Insider Trading Tracker table.

Venus Concept Inc Insider Transactions

No Available Data

What does Mattersight Corp do?

Who are the key executives at Mattersight Corp?

Stefan A Dyckerhoff is the 10 percent owner of Mattersight Corp. Other key executives at Mattersight Corp include director & 10 percent owner Tench Coxe , director & CFO David B Mullen , and 10 percent owner Michael L Speiser .

Mattersight Corp (MATR) Insider Trades Summary

In summary, during the past 3 months, insiders sold 0 shares of Mattersight Corp (MATR) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Mattersight Corp (MATR) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.

Mattersight Corp (MATR)'s detailed insider trading history can be found in Insider Trading Tracker table.

Mattersight Corp Insider Transactions

No Available Data

What does Molecular Templates Inc do?

Who are the key executives at Molecular Templates Inc?

Stefan A Dyckerhoff is the 10 percent owner of Molecular Templates Inc. Other key executives at Molecular Templates Inc include 10 percent owner Biotech Target N V , Chief Medical Officer Maurizio Voi , and CFO & Treasurer Sean Mclennan .

Molecular Templates Inc (MTEM) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Molecular Templates Inc (MTEM). Other recent insider transactions involving Molecular Templates Inc (MTEM) include a net sale of 1,029,820 shares made by Biotech Target N V ,

In summary, during the past 3 months, insiders sold 0 shares of Molecular Templates Inc (MTEM) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 1,279,820 shares of Molecular Templates Inc (MTEM) were sold and 250,000 shares were bought by its insiders, resulting in a net sale of 1,029,820 shares.

Molecular Templates Inc (MTEM)'s detailed insider trading history can be found in Insider Trading Tracker table.

Molecular Templates Inc Insider Transactions

No Available Data

What does Dex Liquidating Co do?

Who are the key executives at Dex Liquidating Co?

Stefan A Dyckerhoff is the 10 percent owner of Dex Liquidating Co. Other key executives at Dex Liquidating Co include other: Former Director Younger William H Jr , V.P. & Finance & CFO & Secretary Newell Robert Y Iv , and VP,Worldwide Sales & Marketing Liam Burns .

Dex Liquidating Co (DXTRQ) Insider Trades Summary

In summary, during the past 3 months, insiders sold 0 shares of Dex Liquidating Co (DXTRQ) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Dex Liquidating Co (DXTRQ) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.

Dex Liquidating Co (DXTRQ)'s detailed insider trading history can be found in Insider Trading Tracker table.

Dex Liquidating Co Insider Transactions

No Available Data

What does Corcept Therapeutics Inc do?

Who are the key executives at Corcept Therapeutics Inc?

Stefan A Dyckerhoff is the 10 percent owner of Corcept Therapeutics Inc. Other key executives at Corcept Therapeutics Inc include Chief Development Officer William Guyer , director & CHIEF EXECUTIVE OFFICER Joseph K Belanoff , and Chief Accounting Officer Joseph Douglas Lyon .

Corcept Therapeutics Inc (CORT) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Corcept Therapeutics Inc (CORT). Other recent insider transactions involving Corcept Therapeutics Inc (CORT) include a net sale of 30,950 shares made by Swisher Daniel N Jr , a net sale of 257,061 shares made by Joseph Douglas Lyon , and a net sale of 310,590 shares made by Sean Maduck .

In summary, during the past 3 months, insiders sold 393,868 shares of Corcept Therapeutics Inc (CORT) in total and bought 0 shares, with a net sale of 393,868 shares. During the past 18 months, 816,932 shares of Corcept Therapeutics Inc (CORT) were sold and 0 shares were bought by its insiders, resulting in a net sale of 816,932 shares.

Corcept Therapeutics Inc (CORT)'s detailed insider trading history can be found in Insider Trading Tracker table.

Corcept Therapeutics Inc Insider Transactions

No Available Data

What does Juniper Networks Inc do?

Who are the key executives at Juniper Networks Inc?

Stefan A Dyckerhoff is the EVP and GM of IPG of Juniper Networks Inc. Other key executives at Juniper Networks Inc include EVP Chief Revenue Officer Kaddaras Christopher Nicholas Jr , EVP Chief Product Officer Manoj Leelanivas , and EVP & CFO Kenneth Bradley Miller .

Juniper Networks Inc (JNPR) Insider Trades Summary

Over the past 18 months, Stefan A Dyckerhoff made no insider transaction in Juniper Networks Inc (JNPR). Other recent insider transactions involving Juniper Networks Inc (JNPR) include a net sale of 133,332 shares made by Rami Rahim , a net sale of 233,669 shares made by Kenneth Bradley Miller , and a net sale of 221,066 shares made by Manoj Leelanivas .

In summary, during the past 3 months, insiders sold 120,978 shares of Juniper Networks Inc (JNPR) in total and bought 0 shares, with a net sale of 120,978 shares. During the past 18 months, 697,136 shares of Juniper Networks Inc (JNPR) were sold and 0 shares were bought by its insiders, resulting in a net sale of 697,136 shares.

Juniper Networks Inc (JNPR)'s detailed insider trading history can be found in Insider Trading Tracker table.

Juniper Networks Inc Insider Transactions

No Available Data

Stefan A Dyckerhoff Mailing Address

Above is the net worth, insider trading, and ownership report for Stefan A Dyckerhoff. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Stefan A Dyckerhoff's mailing address is: Sunnyvale Ca 94089.

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