Info
Insider Trading

Insider Transactions Reported by 11 Insiders of Zosano Pharma Corp

Location: Fremont, CA

Quick Takeaways

Zosano Pharma Corp has 11 insiders with reported activity on this page.
No net insider buy/sell flow is currently reported for the last year.
Recent transaction rows are not currently available.

What Changed

No meaningful buy/sell imbalance is currently visible in the one-year window.
Activity will update as new Forms 3/4/5 are filed.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Source Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 21 Apr 2025.

Buys

Shares: 0

Insiders: 0

Sells

Shares: 0

Insiders: 0

Net

Shares: 0

Insiders: 0

Window (months)	Buy $	Sell $	Net $
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

Zosano Pharma Corp executives and other stock owners filed with the SEC include:

Name	Relationship	Valuation	Report Date
Kleanthis G. Xanthopoulos	Director	Mixed	10 Jun 2021
Kenneth Greathouse	Director	Mixed	23 Nov 2021
Linda Grais	Director	Mixed	10 Jun 2021
Kathy M. McGee	Director	Mixed	24 May 2021
Christine Matthews	Chief Financial Officer	Mixed	06 Jun 2022
Hayley Lewis	Senior Vice President, Operations	Mixed	04 Jun 2021
Elaine Yang	Director	Mixed	07 Dec 2021
Steve Elms	Director	Mixed	10 Jun 2021
Donald J. Kellerman	VP, Clinical Dev & Med Affairs	Mixed	31 Mar 2022
Steven Lo	Chief Executive Officer, Director	Mixed	06 Jun 2022
Joseph P. Hagan	Director	Mixed	10 Jun 2021

Top shareholders of Zosano Pharma Corp (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Steve Elms	3/4/5	Director	— mixed-class rows	2,770,726 mixed-class rows	—	—	10 Jun 2021	3/4/5
Elaine Yang	3/4/5	Director	— class O/S missing	90,000	—	—	07 Dec 2021	3/4/5
Kathy M. McGee	3/4/5	Director	— class O/S missing	90,000	—	—	24 May 2021	3/4/5
Donald J. Kellerman	3/4/5	VP, Clinical Dev & Med Affairs	— class O/S missing	56,331	—	—	31 Mar 2022	3/4/5
Kleanthis G. Xanthopoulos	3/4/5	Director	— mixed-class rows	53,596 mixed-class rows	—	—	10 Jun 2021	3/4/5
Joseph P. Hagan	3/4/5	Director	— mixed-class rows	52,500 mixed-class rows	—	—	10 Jun 2021	3/4/5
Linda Grais	3/4/5	Director	— mixed-class rows	52,500 mixed-class rows	—	—	10 Jun 2021	3/4/5
Hayley Lewis	3/4/5	Senior Vice President, Operations	— class O/S missing	49,779	—	—	04 Jun 2021	3/4/5
Kenneth Greathouse	3/4/5	Director	— class O/S missing	43,500	—	—	23 Nov 2021	3/4/5
Steven Lo	3/4/5	Chief Executive Officer, Director	— class O/S missing	13,163	—	—	06 Jun 2022	3/4/5
Christine Matthews	3/4/5	Chief Financial Officer	— class O/S missing	4,183	—	—	06 Jun 2022	3/4/5

Recent Insider Transactions by Companies or Individuals for Zosano Pharma Corp

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
No insider transactions were found in the last 12 months for this issuer.

* An asterisk sign (*) next to the price indicates that the price is likely invalid.