Comparable stake leader
John J. Harrington
SEC ownership of ATHERSYS, INC / NEW
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001368148.
Disclosed value leader
John J. Harrington
Comparable rows
0/14
Latest evidence
18 Dec 2023
- Parsed ownership sources
- 3/4/5
- Largest SEC-reported holder
- John J. Harrington
- Latest parsed ownership date
- 18 Dec 2023
- Issuer CIK
- 0001368148
- Issuer location
- Cleveland, OH
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 ATHERSYS, INC / NEW (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
John J. Harrington
Disclosed value leader
John J. Harrington
Comparable rows
0/14
Latest evidence
18 Dec 2023
3/4/5
Highest disclosed value: $16,981
14 rows are not safely comparable across share classes.
Showing 1-8 of 14 holder rows.
Quick read
John J. Harrington has the largest disclosed position value at $17K.
0 of 14 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 John J. Harrington's linked filing trail.
Disclosed position value
Top 5
John J. Harrington
$17K
William O Lehmann
$11.7K
Daniel A. Camardo
$7.1K
Ivor Macleod
$3.6K
Maia Hansen
$1.8K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 14 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| John J. Harrington |
3/4/5
Exec Vice Pres and CSO
|
—
class O/S missing
|
$16,981
679,237 shares
|
— | 17 Jun 2022 |
| William O Lehmann |
3/4/5
President, COO
|
—
class O/S missing
|
$11,663
466,531 shares
|
— | 17 Mar 2022 |
| Daniel A. Camardo |
3/4/5
CEO, Director
|
—
class O/S missing
|
$7,134
285,341 shares
|
— | 04 Oct 2023 |
| Ivor Macleod |
3/4/5
Chief Financial Officer
|
—
class O/S missing
|
$3,582
143,290 shares
|
— | 17 Jun 2022 |
| Maia Hansen |
3/4/5
COO
|
—
class O/S missing
|
$1,750
70,010 shares
|
— | 18 Dec 2023 |
| Ismail Kola |
3/4/5
Director
|
—
class O/S missing
|
$1,506
60,226 shares
|
— | 09 Jan 2023 |
| Jack L. Wyszomierski |
3/4/5
Director
|
—
class O/S missing
|
$879
35,141 shares
|
— | 09 Jan 2023 |
| Jane Wasman |
3/4/5
Director
|
—
class O/S missing
|
$879
35,141 shares
|
— | 09 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 12 Jun 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 ATHERSYS, INC / NEW. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
John J. Harrington
Net 12M change
$0
Latest report
18 Dec 2023
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John J. Harrington | Exec Vice Pres and CSO | $16,981 | Mixed | 17 Jun 2022 | ||
| William O Lehmann | President, COO | $11,663 | Mixed | 17 Mar 2022 | ||
| Daniel A. Camardo | CEO, Director | $7,134 | Mixed | 04 Oct 2023 | ||
| Ivor Macleod | Chief Financial Officer | $3,582 | Mixed | 17 Jun 2022 | ||
| Maia Hansen | Coo | $1,750 | Mixed | 18 Dec 2023 | ||
| Ismail Kola | Director | $1,506 | Mixed | 09 Jan 2023 | ||
| Jane Wasman | Director | $879 | Mixed | 09 Jan 2023 | ||
| Jack L. Wyszomierski | Director | $879 | Mixed | 09 Jan 2023 | ||
| Kenneth Traub | Director | $556 | Mixed | 16 Sep 2022 | ||
| Joseph Patrick Nolan | Director | $549 | Mixed | 09 Jan 2023 | ||
| Neema Mayhugh | Director | Mixed | 17 Aug 2023 | |||
| Katherine Bach Kalin | Director | Mixed | 15 Jun 2021 | |||
| Lorin J. Randall | Director | Mixed | 15 Jun 2021 | |||
| Kasey Rosado | Interim, CFO | Mixed | 29 Jul 2022 | |||
| Baiju R. Shah | Director | Mixed | 15 Jun 2021 |
Recent insider transactions for ATHERSYS, INC / NEW
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.