Michael L. Speiser

CIK: 0001433644

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)314 (97.2%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)9 (2.8%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

SNOW

Snowflake Inc.

Director

WDAY

Workday, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (323 total)

SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Direct
403 shares at avg. $344.00$139K
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
840 shares at avg. $344.00$289K
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
34K shares at avg. $344.00$11.7M
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
13K shares at avg. $344.00$4.5M
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
840 shares at avg. $344.00$289K
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
840 shares at avg. $344.00$289K
SNOW
Snowflake Inc.
Oct 2, 2026
Sale(S)
Indirect
840 shares at avg. $344.00$289K
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
840 shares at avg. $353.87$297K
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
13K shares at avg. $353.87$4.6M
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
34K shares at avg. $353.87$12.0M
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
840 shares at avg. $353.87$297K
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Direct
403 shares at avg. $353.87$143K
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
840 shares at avg. $353.87$297K
SNOW
Snowflake Inc.
Sep 4, 2026
Sale(S)
Indirect
840 shares at avg. $353.87$297K
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
34K shares at avg. $324.06$11.0M
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
840 shares at avg. $324.06$272K
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
840 shares at avg. $324.06$272K
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
840 shares at avg. $324.06$272K
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
840 shares at avg. $324.06$272K
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Indirect
13K shares at avg. $324.06$4.2M
SNOW
Snowflake Inc.
Aug 7, 2026
Sale(S)
Direct
403 shares at avg. $324.06$131K
SNOW
Snowflake Inc.
Jul 6, 2026
Sale(S)
Indirect
28 shares at avg. $254.52$7K
SNOW
Snowflake Inc.
Jul 6, 2026
Sale(S)
Indirect
465 shares at avg. $255.16$119K
SNOW
Snowflake Inc.
Jul 6, 2026
Sale(S)
Indirect
1 shares at avg. $253.86$253.861
SNOW
Snowflake Inc.
Jul 6, 2026
Sale(S)
Indirect
14 shares at avg. $259.76$4K

		Type	Shares	Price		Ownership
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	403	$344.00	$138,632	Direct
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	840	$344.00	$288,960	Indirect
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	34,005	$344.00	$11,697,720	Indirect
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	12,973	$344.00	$4,462,712	Indirect
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	840	$344.00	$288,960	Indirect
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	840	$344.00	$288,960	Indirect
Oct 2, 2026	SNOW Snowflake Inc.	Sale(S)	840	$344.00	$288,960	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	840	$353.87	$297,252	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	12,973	$353.87	$4,590,768	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	34,005	$353.87	$12,033,383	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	840	$353.87	$297,252	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	403	$353.87	$142,610	Direct
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	840	$353.87	$297,252	Indirect
Sep 4, 2026	SNOW Snowflake Inc.	Sale(S)	840	$353.87	$297,252	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	34,005	$324.06	$11,019,660	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	840	$324.06	$272,210	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	840	$324.06	$272,210	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	840	$324.06	$272,210	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	840	$324.06	$272,210	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	12,973	$324.06	$4,204,030	Indirect
Aug 7, 2026	SNOW Snowflake Inc.	Sale(S)	403	$324.06	$130,596	Direct
Jul 6, 2026	SNOW Snowflake Inc.	Sale(S)	28	$254.52	$7,127	Indirect
Jul 6, 2026	SNOW Snowflake Inc.	Sale(S)	465	$255.16	$118,650	Indirect
Jul 6, 2026	SNOW Snowflake Inc.	Sale(S)	1	$253.86	$254	Indirect
Jul 6, 2026	SNOW Snowflake Inc.	Sale(S)	14	$259.76	$3,637	Indirect

1-25 of 323 transactions

…

About Speiser Michael L

Speiser Michael L (SEC CIK 0001433644) files insider reports with the SEC as Director of Snowflake Inc. (SNOW) and Director of Workday, Inc. (WDAY).

Signal8 holds 27 ownership filings by Speiser Michael L, all Form 4s, filed between Apr 7, 2025 and Oct 2, 2026. Those filings report 323 transactions, from Apr 4, 2025 to Oct 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Speiser Michael L's filings is in MENLO PARK, CA.

Recent filings by Speiser Michael L

Oct 2, 2026: Open-market sales of SNOW shares (7 lines, Form 4, code S).
Sep 4, 2026: Open-market sales of SNOW shares (7 lines, Form 4, code S).
Aug 7, 2026: Open-market sales of SNOW shares (7 lines, Form 4, code S).
Jul 6, 2026: Open-market sales of SNOW shares (4 lines, Form 4, code S).

Other insiders filing for Snowflake Inc. (SNOW)

Dageville Benoit, Director
Slootman Frank, Director
Kleinerman Christian, EVP, Product Management
Beaulier Jonathan Mead, Chief Revenue Officer
Ramaswamy Sridhar, Chief Executive Officer
Raghunathan Vivek, SVP, Engineering

How to read Form 4 transaction codes