Comparable stake leader
David M. Weber
SEC ownership of ABIOMED INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000815094.
Disclosed value leader
David M. Weber
Comparable rows
0/2
Latest evidence
10 Aug 2022
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
David M. Weber
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
10 Aug 2022
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000815094
- Issuer location
- Danvers, MA
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 ABIOMED 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
David M. Weber
Disclosed value leader
David M. Weber
Comparable rows
0/2
Latest evidence
10 Aug 2022
3/4/5
Highest disclosed value: $49,295,996
2 rows are not safely comparable across share classes.
Quick read
David M. Weber has the largest disclosed position value at $49.3M.
0 of 2 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 David M. Weber's linked filing trail.
Disclosed position value
Top 2
David M. Weber
$49.3M
Eric A. Rose MD
$5.69M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-2 of 2 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| David M. Weber |
3/4/5
CHIEF OPERATING OFFICER
|
—
mixed-class rows
|
$49,295,996
136,780 shares
mixed-class rows
|
— | 31 Mar 2022 |
| Eric A. Rose MD |
3/4/5
Director
|
—
class O/S missing
|
$5,685,770
15,203 shares
|
— | 10 Aug 2022 |
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 1-14 of 14 reporting-owner rows connected to ABIOMED INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
14
Largest Forms 3/4/5 holder
David M. Weber
Net 12M change
$0
Latest report
22 Dec 2022
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| David M. Weber | Chief Operating Officer | $49,295,996 | Mixed | 31 Mar 2022 | ||
| Eric A. Rose MD | Director | $5,685,770 | Mixed | 10 Aug 2022 | ||
| Paul Thomas | Director | Mixed | 22 Dec 2022 | |||
| Martin P. Sutter | Director | Mixed | 22 Dec 2022 | |||
| RIVET JEANNINE M | Director | Mixed | 22 Dec 2022 | |||
| Paula A. Johnson | Director | Mixed | 22 Dec 2022 | |||
| Myron L. Rolle | Director | Mixed | 22 Dec 2022 | |||
| Plano Matthew T. | Vp, Global Operations | Mixed | 22 Dec 2022 | |||
| Andrew J. Greenfield | Vp, Chief Commercial Officer | Mixed | 22 Dec 2022 | |||
| Dorothy E. Puhy | Director | Mixed | 22 Dec 2022 | |||
| Todd A. Trapp | Vice President, Cfo | Mixed | 22 Dec 2022 | |||
| Chris van Gorder | Director | Mixed | 22 Dec 2022 | |||
| Marc A. Began | Vp & General Counsel | Mixed | 22 Dec 2022 | |||
| Michael R. Minogue | CHAIRMAN, PRESIDENT, CEO, Director | Mixed | 22 Dec 2022 |
Recent insider transactions for ABIOMED 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.