Comparable stake leader
Gregory George
SEC ownership of MESOBLAST LTD
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001345099.
Disclosed value leader
Gregory George
Comparable rows
50/50
Latest evidence
09 Apr 2026
- Public ticker
- MESO on Nasdaq, MEOBF on OTC
- Parsed ownership sources
- 3/4/5, 13D/G, and 13F
- Largest SEC-reported holder
- Gregory George
- Latest 13D/G holder
- Gregory George
- Latest parsed ownership date
- 09 Apr 2026
- Issuer CIK
- 0001345099
- Issuer location
- Melbourne, Victoria, Australia
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of MESOBLAST LTD (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
Gregory George
Disclosed value leader
Gregory George
Comparable rows
50/50
Latest evidence
09 Apr 2026
3/4/5
13D/G
13F
Lead comparable stake: 22%
13D/G row: Gregory George
Showing 1-8 of 50 holder rows.
Quick read
Gregory George leads the comparable SEC ownership view at 22%.
50 of 50 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 Gregory George's linked filing trail.
Comparable ownership
Top 5
Gregory George
22%
Gueck William J.
5%
Silviu Itescu
6.1%
Eric Allen Rose
0.06%
Jane Catherine Bell
0.05%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Gregory George |
3/4/5
13D/G
Director, 10%+ Owner · George, Gregory
|
22%
from 13D/G
|
$2,762,560,264
166,358,342 shares
|
+$8,552,214 | 09 Apr 2026 |
| Gueck William J. |
13D/G
|
5%
|
$1,040,093,028
64,521,900 shares
|
$0 | 12 Sep 2025 |
| Silviu Itescu |
3/4/5
CEO and Managing Director, Director
|
6.1%
|
$1,424,419,060
78,958,928 shares
|
— | 18 Mar 2026 |
| Eric Allen Rose |
3/4/5
Chief Medical Officer,Director, Director
|
0.06%
|
$12,093,062
714,720 shares
|
— | 18 Mar 2026 |
| Jane Catherine Bell |
3/4/5
Director
|
0.05%
|
$10,532,564
622,492 shares
|
— | 18 Mar 2026 |
| Philip R. Krause |
3/4/5
Director
|
0.02%
|
$4,864,500
287,500 shares
|
— | 18 Mar 2026 |
| William Murray Burns |
3/4/5
Director
|
0.02%
|
$4,081,550
226,250 shares
|
— | 18 Mar 2026 |
| Philip James Facchina |
3/4/5
Director
|
0.01%
|
$2,084,882
123,220 shares
|
— | 18 Mar 2026 |
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
Net insider flow leans to buying over the last 12 months. Net value: +$8,552,214.
Buys
$8,552,214
Insiders: 1
Sells
$0
Insiders: 0
Net
+$8,552,214
Shares: +595,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 595,000
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 595,000 | 0 | $8,552,214 | $0 | +$8,552,214 |
| 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 1-9 of 9 reporting-owner rows connected to MESOBLAST LTD. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Gregory George
Net 12M change
+$8,552,214
Latest report
09 Apr 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Gregory George | Director, 10%+ Owner | $2,762,560,264 | +$8,552,214 | +0.31% | Mixed | 09 Apr 2026 |
| Silviu Itescu | CEO and Managing Director, Director | $1,424,419,060 | Mixed | 18 Mar 2026 | ||
| Eric Allen Rose | Chief Medical Officer,Director, Director | $12,093,062 | Mixed | 18 Mar 2026 | ||
| Jane Catherine Bell | Director | $10,532,564 | Mixed | 18 Mar 2026 | ||
| Philip R. Krause | Director | $4,864,500 | Mixed | 18 Mar 2026 | ||
| William Murray Burns | Director | $4,081,550 | Mixed | 18 Mar 2026 | ||
| Philip James Facchina | Director | $2,084,882 | Mixed | 18 Mar 2026 | ||
| Lynette Elizabeth Cobley | Director | $905,310 | Mixed | 18 Mar 2026 | ||
| James Michael O'Brien | Chief Financial Officer | Mixed | 18 Mar 2026 |
Recent insider transactions for MESOBLAST LTD
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Gregory George | MESO | Ordinary Shares | Purchase | 38.7% | 2,324,072 | 8,324,072 | 10 Apr 2026 | Held by Grant George, who has granted power of attorney to Dr. George. | ||
| Gregory George | MESO | Ordinary Shares | Purchase | 38.7% | 2,324,072 | 8,324,072 | 10 Apr 2026 | Held by Grant George, who has granted power of attorney to Dr. George. | ||
| Gregory George | MESO | Ordinary Shares | Purchase | 13.2% | 1,586,890 | 13,586,890 | 09 Apr 2026 | As above. | ||
| Gregory George | MESO | Ordinary Shares | Purchase | 4.58% | $8,552,214 | $14.37 | 595,000 | 13,586,890 | 09 Apr 2026 | As above. |
| Gregory George | MESO | Ordinary Shares | Purchase | 7.39% | 886,890 | 12,886,890 | 09 Apr 2026 | As above. | ||
| Gregory George | MESO | Ordinary Shares | Purchase | 50% | 4,000,000 | 12,000,000 | 04 Apr 2026 | Held by James George, who has granted power of attorney to Dr. George. | ||
| Gregory George | MESO | Ordinary Shares | Purchase | 50% | 4,000,000 | 12,000,000 | 04 Apr 2026 | Held by James George, who has granted power of attorney to Dr. George. |
* marks a reported price that did not pass the local price check.