rotation.to
Following this device: dark.
Free account
rotation.to
Sign in / Request free access
Appearance
Following this device: dark.
Drag a card by its title · ⚙ to size, swap or remove

Who

Stefan A. Dyckerhoff

Director

Company insider

Files Form 4 as: Director and 10% owner, Astera Labs; 10% owner, Snowflake; Other, Forty Seven; 10% owner, Everpure; 10% owner, Yext; 10% owner, Restoration Robotics; 10% owner, Mattersight; 10% owner, Threshold Pharmaceuticals.

Every Form 4 they filed

In numbers

Trades disclosed
319
Buys
4
Sells
24
Bought
$4.9M
Sold
$106.5M
Companies
10
Companies where not an officer
9
First trade
19 Feb 2010
Last trade
7 Oct 2026
Last filed
9 Oct 2026

Companies traded

Where they are an officer
Juniper NetworksOfficer · last 17 Feb 20120 buys · 1 sell
Everywhere else they filed: board seats, 10% stakes, other companies
ALAB Astera LabsDirector, 10% owner · Semiconductors · last 7 Oct 20260 buys · 16 sells
SNOW Snowflake10% owner · Software · last 18 Sep 20200 buys · 0 sells
Forty SevenOther · last 2 Jul 20181 buy · 0 sells
P Everpure10% owner · Hardware, Devices & Storage · last 11 Jan 20180 buys · 2 sells
YEXT Yext10% owner · Payments & Processors · last 1 Dec 20170 buys · 0 sells
Restoration Robotics10% owner · last 16 Oct 20170 buys · 0 sells
Mattersight10% owner · last 1 Jun 20172 buys · 2 sells
Threshold Pharmaceuticals10% owner · last 1 Oct 20140 buys · 3 sells
Cardica10% owner · last 20 Mar 20131 buy · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
60Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
7 Oct 2026filed 9 Oct 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$1.3M3,505 at $376.06filing
7 Oct 2026filed 9 Oct 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$3.1M8,333 at $376.06filing
7 Oct 2026filed 9 Oct 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$249K661 at $376.06filing
1 Oct 2026filed 9 Oct 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Code A$21K68 at $311.57filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$75K273 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$48K172 at $276.75filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$113K407 at $276.75filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$8,85632 at $276.75filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$178K650 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$14K52 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$625K2,275 at $274.79filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$1.5M5,409 at $274.79filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$118K429 at $274.79filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$216K785 at $275.53filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$514K1,867 at $275.53filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$41K148 at $275.53filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$75K273 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$178K650 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$14K52 at $273.64filing
2 Sep 2026filed 3 Sep 2026ALAB Astera LabsSemiconductorsSEC FORM 4 Sold$625K2,275 at $274.79filing

Sectors

Technology18
Not placed10

Buys in green, sells in red, by the company’s sector.

Related people

John ColgroveChief Visionary Officer · Also traded P in the last 90 days
Scott DietzenDirector · Also traded P in the last 90 days
Ajay SinghChief Product Officer · Also traded P in the last 90 days
Charles H. GiancarloCEO · Also traded P in the last 90 days
Mona ChuChief Accounting Officer · Also traded P in the last 90 days
Andrew William Fraser BrownDirector · Also traded P in the last 90 days
Mallun YenDirector · Also traded P in the last 90 days
Manuel AlbaDirector · Also traded ALAB in the last 90 days