SEC ownership of CHIASMA, INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001339469.

Comparable stake leader

Stonepine Capital Management, LLC

Disclosed value leader

Comparable rows

0/1

Latest evidence

06 May 2021

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
06 May 2021
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001339469
Issuer location
Needham, MA

Ownership snapshot

Top shareholders of CHIASMA, INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Stonepine Capital Managem...
Disclosed value leader
Comparable rows
0/1
Latest evidence
06 May 2021
3/4/5 Some rows are evidence-backed but not safely comparable across classes. 1 rows are not safely comparable across share classes.

Quick read

SEC ownership evidence is available, but the rows are not safely comparable across share classes.

0 of 1 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Stonepine Capital Management, LLC's linked filing trail.
Detailed SEC evidence table Showing 1-1 of 1 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Stonepine Capital Management, LLC
3/4/5
10%+ Owner
class O/S missing
6,770,000 shares
06 May 2021
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 13 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to CHIASMA, INC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
15
Largest Forms 3/4/5 holder
Todd Foley
Net 12M change
$0
Latest report
05 Aug 2021
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Todd Foley Director Mixed 05 Aug 2021
Roni Mamluk Director Mixed 05 Aug 2021
Lee Giguere General Counsel Mixed 05 Aug 2021
Bard Geesaman Director Mixed 05 Aug 2021
Raj Kannan CEO and President, Director Mixed 05 Aug 2021
Stonepine Capital Management, LLC 10%+ Owner Mixed 06 May 2021
John Brendan Doyle Chief Financial Officer Mixed 05 Aug 2021
Drew Enamait VP, Fin & Admin, PAO Mixed 05 Aug 2021
William Ludlam Officer Mixed 05 Aug 2021
Anand Varadan EVP, Chief Commerical Officer Mixed 05 Aug 2021
Scott Minick Director Mixed 05 Aug 2021
STONEPINE CAPITAL, L.P. 10%+ Owner Mixed 05 Aug 2021
John F. Thero Director Mixed 05 Aug 2021
David M. Stack Director Mixed 05 Aug 2021
John A. Scarlett Director Mixed 05 Aug 2021

Recent insider transactions for CHIASMA, INC

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

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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