Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MESO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 715K | $11.0M | -33.5% | 0.554% | 0.00% |
| 2 | BlackRock, Inc. | 631K | $9.7M | -6.7% | 0.489% | 0.00% |
| 3 | CITADEL ADVISORS LLC | 545K | $8.4M | -13.5% | 0.423% | 0.00% |
| 4 | MORGAN STANLEY | 514K | $7.9M | -13.8% | 0.399% | 0.00% |
| 5 | GOLDMAN SACHS GROUP INC | 397K | $6.1M | +0.3% | 0.308% | 0.00% |
| 6 | UBS Group AG | 133K | $2.0M | +82.7% | 0.103% | 0.00% |
| 7 | BANK OF AMERICA CORP /DE/ | 100K | $1.5M | +608.4% | 0.077% | 0.00% |
| 8 | Penbrook Management LLC | 87K | $1.3M | -0.6% | 0.068% | 1.01% |
| 9 | GROUP ONE TRADING, L.P. | 84K | $1.3M | — | 0.065% | 0.04% |
| 10 | Marex Group plc | 100K | $1.2M | — | 0.077% | 0.00% |
| 11 | M&G Plc | 59K | $887K | — | 0.046% | 0.00% |
| 12 | LPL Financial LLC | 50K | $763K | -15.5% | 0.038% | 0.00% |
| 13 | Rialto Wealth Management, LLC | 47K | $715K | 0.0% | 0.036% | 0.16% |
| 14 | LAZARI CAPITAL MANAGEMENT, INC. | 46K | $709K | 0.0% | 0.036% | 0.25% |
| 15 | Fi3 FINANCIAL ADVISORS, LLC | 42K | $646K | 0.0% | 0.033% | 0.19% |
| 16 | XTX Topco Ltd | 41K | $629K | +227.3% | 0.032% | 0.01% |
| 17 | TWO SIGMA INVESTMENTS, LP | 40K | $612K | -30.9% | 0.031% | 0.00% |
| 18 | Squarepoint Ops LLC | 34K | $524K | +83.2% | 0.026% | 0.00% |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 34K | $519K | +9.8% | 0.026% | 0.00% |
| 20 | WILEY BROS.-AINTREE CAPITAL, LLC | 27K | $414K | +45.6% | 0.021% | 0.00% |
| 21 | CITIGROUP INC | 26K | $407K | +0.3% | 0.021% | 0.00% |
| 22 | ROYAL BANK OF CANADA | 26K | $404K | +22.5% | 0.020% | 0.00% |
| 23 | AQR CAPITAL MANAGEMENT LLC | 25K | $390K | +0.5% | 0.020% | 0.00% |
| 24 | SRS Capital Advisors, Inc. | 24K | $376K | -85.3% | 0.019% | 0.01% |
| 25 | WELLS FARGO & COMPANY/MN | 18K | $278K | 0.0% | 0.014% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MESO — a direct measure of their conviction.
Filings activity in MESO during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 68 | 5.6% | 3.43% | 2.83 pp | $62M | 45% |
| Q4 2025 | 72 | +9.1% | 6.26% | +2.15 pp | $112M | +52% |
| Q3 2025 | 66 | 5.7% | 4.11% | +1.89 pp | $74M | +85% |
| Q2 2025 | 70 | +6.1% | 2.22% | 0.28 pp | $40M | 11% |
| Q1 2025 | 66 | +4.8% | 2.50% | 1.27 pp | $45M | 34% |
| Q4 2024 | 63 | +47% | 3.77% | +3.01 pp | $68M | +396% |
| Q3 2024 | 43 | +16% | 0.76% | +0.20 pp | $14M | +35% |
| Q2 2024 | 37 | — | 0.56% | — | $10M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Apr 4, 2026 | George Gregory | Buy | 4.0M | $1.42 | $5.7M |
| Apr 4, 2026 | George Gregory | Buy | 4.0M | $1.42 | $5.7M |
Quick answers to the most common questions about buying MESO stock.
Based on Q1 2026 13F filings, institutional ownership of Mesoblast Limited stands at 3.4%, held across 68 reporting institutions.
SUSQUEHANNA INTERNATIONAL GROUP, LLP is the largest reported institutional holder of MESO, with approximately 714,572 shares worth $0.01B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of MESO, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for MESO is 45 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
11 institutions opened new positions in MESO during Q1 2026, while 15 fully exited. 12 added to existing positions and 45 trimmed.
MESO institutional ownership fell by 2.83 percentage points quarter-over-quarter, with a net change of -4 holders.
The top 10 institutions account for 82.1% of all reported 13F value in MESO, and the top 25 account for 95.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Mesoblast Limited (MESO) Institutional Ownership