59% buyers of institutions opening or closing positions this quarter
3 more new buyers than exits, ownership fell 27.42 percentage points vs the prior quarter, and 2 well-known fund managers in the top 25.
59% buyers of institutions opening or closing positions this quarter
63.6% institutional ownership
Curative Ventures V portfolio allocation
Institutional ownership vs Biotechnology peers
No Form 4 insider transactions on file
Latest positioning in TIL across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in TIL held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Curative Ventures V LLC | 1.9M | $15.6M | 0.0% | 28.001% | 100.00% |
| 2 | BML Capital Management, LLC | 646K | $5.3M | 0.0% | 9.519% | 3.42% |
| 3 | CPMG Inc | 411K | $3.4M | 0.0% | 6.059% | 9.13% |
| 4 | Vivo Capital, LLC | 293K | $2.4M | 0.0% | 4.317% | 0.20% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 175K | $1.4M | β | 2.574% | 0.00% |
| 6 | Kalehua Capital Management LLC | 140K | $1.2M | β | 2.062% | 0.97% |
| 7 | MILLENNIUM MANAGEMENT LLC | 133K | $1.1M | -45.2% | 1.960% | 0.00% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 59K | $487K | -12.8% | 0.871% | 0.00% |
| 9 | BlackRock, Inc. | 52K | $429K | +1.6% | 0.767% | 0.00% |
| 10 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 50K | $412K | 0.0% | 0.737% | 0.00% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 49K | $404K | +14.8% | 0.723% | 0.00% |
| 12 | CITADEL ADVISORS LLC | 39K | $318K | -18.5% | 0.569% | 0.00% |
| 13 | LPL Financial LLC | 32K | $264K | -3.1% | 0.473% | 0.00% |
| 14 | XTX Topco Ltd | 26K | $216K | +113.9% | 0.387% | 0.00% |
| 15 | VANGUARD FIDUCIARY TRUST CO | 23K | $186K | β | 0.334% | 0.00% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 20K | $164K | -67.3% | 0.295% | 0.00% |
| 17 | MORGAN STANLEY | 20K | $163K | -77.7% | 0.292% | 0.00% |
| 18 | STATE STREET CORP | 18K | $145K | 0.0% | 0.259% | 0.00% |
| 19 | Americana Partners, LLC | 16K | $133K | 0.0% | 0.238% | 0.00% |
| 20 | JANE STREET GROUP, LLC | 12K | $95K | β | 0.170% | 0.00% |
| 21 | PRELUDE CAPITAL MANAGEMENT, LLC | 10K | $85K | β | 0.152% | 0.01% |
| 22 | Vazirani Asset Management LLC | 10K | $82K | β | 0.147% | 0.19% |
| 23 | UBS Group AG | 6K | $53K | +1676.6% | 0.094% | 0.00% |
| 24 | BARCLAYS PLC | 4K | $34K | -59.2% | 0.061% | 0.00% |
| 25 | Vanguard Global Advisers, LLC | 1K | $12K | β | 0.022% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in TIL β a direct measure of their conviction.
Filings activity in TIL during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 32 | +10% | 63.56% | 27.42 pp | $34M | 30% |
| Q4 2025 | 29 | 15% | 90.98% | 60.45 pp | $49M | 40% |
| Q3 2025 | 34 | 13% | 151.43% | 28.51 pp | $81M | 16% |
| Q2 2025 | 39 | 11% | 179.94% | +11.09 pp | $97M | +6.6% |
| Q1 2025 | 44 | +10% | 168.85% | 17.21 pp | $91M | 9.3% |
| Q4 2024 | 40 | 22% | 186.06% | 13.93 pp | $100M | 72% |
| Q3 2024 | 51 | +65% | 199.99% | +119.20 pp | $357M | +723% |
| Q2 2024 | 31 | β | 80.79% | β | $43M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
No recent Form 4 insider transactions on file for TIL.
Quick answers to the most common questions about buying TIL stock.
Based on Q1 2026 13F filings, institutional ownership of Instil Bio, Inc. stands at 63.6%, held across 32 reporting institutions.
Curative Ventures V LLC is the largest reported institutional holder of TIL, with approximately 1,899,004 shares worth $0.02B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of TIL, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for TIL is 48 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
10 institutions opened new positions in TIL during Q1 2026, while 7 fully exited. 2 added to existing positions and 20 trimmed.
TIL institutional ownership fell by 27.42 percentage points quarter-over-quarter, with a net change of +3 holders.
The top 10 institutions account for 93.1% of all reported 13F value in TIL, and the top 25 account for 100.0%.
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.