Comparable stake leader
Atul Chopra
SEC ownership of Aceragen, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000861838.
Disclosed value leader
Atul Chopra
Comparable rows
0/17
Latest evidence
10 Aug 2023
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Atul Chopra
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
10 Aug 2023
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000861838
- Issuer location
- Exton, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Aceragen, 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
Atul Chopra
Disclosed value leader
Atul Chopra
Comparable rows
0/17
Latest evidence
10 Aug 2023
3/4/5
Highest disclosed value: $3,488,003
17 rows are not safely comparable across share classes.
Showing 1-8 of 17 holder rows.
Quick read
Atul Chopra has the largest disclosed position value at $3.49M.
0 of 17 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 Atul Chopra's linked filing trail.
Disclosed position value
Top 5
Atul Chopra
$3.49M
Pillar Invest Corp
$408.5K
Andrew R. Jordan
$230.5K
Michael R. Dougherty
$191.3K
Vincent Milano
$4.6K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 17 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Atul Chopra |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$3,488,003
2,545,988 shares
|
— | 15 May 2023 |
| Pillar Invest Corp |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$408,497
800,975 shares
|
— | 12 Jul 2023 |
| Andrew R. Jordan |
3/4/5
CHIEF STRATEGY OFFICER
|
—
mixed-class rows
|
$230,464
477,290 shares
mixed-class rows
|
— | 20 Jan 2023 |
| Michael R. Dougherty |
3/4/5
Director
|
—
class O/S missing
|
$191,329
375,155 shares
|
— | 11 Jan 2023 |
| Vincent Milano |
3/4/5
Director
|
—
class O/S missing
|
$4,583
8,987 shares
|
— | 10 Aug 2023 |
| NovaQuest Co-Investment Fund XV, L.P. |
3/4/5
Director, Other*
|
—
class O/S missing
|
—
830,294 shares
|
— | 17 Jan 2023 |
| Ronald J. Wooten |
3/4/5
Director
|
—
class O/S missing
|
—
830,294 shares
|
— | 17 Jan 2023 |
| John Clayton Taylor |
3/4/5
CHIEF EXECUTIVE OFFICER, Director
|
—
class O/S missing
|
—
74,500 shares
|
— | 20 Jan 2023 |
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 28 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 1-18 of 18 reporting-owner rows connected to Aceragen, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Atul Chopra
Net 12M change
$0
Latest report
10 Aug 2023
Recent insider transactions for Aceragen, 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.