Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in XTNT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Nantahala Capital Management, LLC | 68.4M | $28.8M | 0.0% | 48.761% | 0.48% |
| 2 | AWM Investment Company, Inc. | 6.0M | $2.5M | 0.0% | 4.261% | 0.22% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $848K | 0.0% | 1.436% | 0.00% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | 935K | $394K | -5.3% | 0.667% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 517K | $218K | -2.3% | 0.369% | 0.00% |
| 6 | Crescent Grove Advisors, LLC | 412K | $173K | 0.0% | 0.294% | 0.01% |
| 7 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 400K | $168K | +14.3% | 0.285% | 0.13% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 258K | $109K | 0.0% | 0.184% | 0.00% |
| 9 | CITADEL ADVISORS LLC | 191K | $81K | +18.9% | 0.136% | 0.00% |
| 10 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 164K | $69K | 0.0% | 0.117% | 0.00% |
| 11 | WIREGRASS INVESTMENT MANAGEMENT LLC | 150K | $63K | +45.6% | 0.107% | 0.04% |
| 12 | BlackRock, Inc. | 116K | $49K | 0.0% | 0.083% | 0.00% |
| 13 | Mink Brook Asset Management LLC | 109K | $46K | 0.0% | 0.078% | 0.02% |
| 14 | NORTHERN TRUST CORP | 101K | $43K | +1.5% | 0.072% | 0.00% |
| 15 | MILLENNIUM MANAGEMENT LLC | 84K | $36K | -36.2% | 0.060% | 0.00% |
| 16 | XTX Topco Ltd | 69K | $29K | +80.7% | 0.049% | 0.00% |
| 17 | UBS Group AG | 32K | $13K | β | 0.023% | 0.00% |
| 18 | STATE STREET CORP | 31K | $13K | 0.0% | 0.022% | 0.00% |
| 19 | SEI INVESTMENTS CO | 25K | $10K | 0.0% | 0.018% | 0.00% |
| 20 | Kestra Advisory Services, LLC | 20K | $8K | 0.0% | 0.014% | 0.00% |
| 21 | Ground Swell Capital, LLC | 13K | $6K | β | 0.009% | 0.01% |
| 22 | COMMONWEALTH EQUITY SERVICES, LLC | 13K | $5K | β | 0.009% | 0.00% |
| 23 | Equitable Holdings, Inc. | 11K | $5K | 0.0% | 0.008% | 0.00% |
| 24 | Tower Research Capital LLC (TRC) | 10K | $4K | +40.7% | 0.007% | 0.00% |
| 25 | MassMutual Private Wealth & Trust, FSB | 2K | $842 | 0.0% | 0.001% | 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 XTNT β a direct measure of their conviction.
Filings activity in XTNT during Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 32 | 5.9% | 57.22% | 0.42 pp | $34M | 25% |
| Q1 2026 | 34 | 5.6% | 57.64% | 0.49 pp | $45M | 29% |
| Q4 2025 | 36 | +20% | 58.13% | +0.94 pp | $64M | +23% |
| Q3 2025 | 30 | 3.2% | 57.19% | 0.21 pp | $52M | 12% |
| Q2 2025 | 31 | +6.9% | 57.40% | 11.86 pp | $59M | +31% |
| Q1 2025 | 29 | 6.5% | 69.26% | 0.28 pp | $45M | +5.7% |
| Q4 2024 | 31 | +6.9% | 69.54% | 1.28 pp | $43M | 35% |
| Q3 2024 | 29 | β | 70.82% | β | $66M | 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.
Quick answers to the most common questions about buying XTNT stock.
Based on Q2 2026 13F filings, institutional ownership of Xtant Medical Holdings, Inc. stands at 57.2%, held across 32 reporting institutions.
Nantahala Capital Management, LLC is the largest reported institutional holder of XTNT, with approximately 68,394,000 shares worth $0.03B as of Q2 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of XTNT, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for XTNT is 48 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
4 institutions opened new positions in XTNT during Q2 2026, while 7 fully exited. 3 added to existing positions and 23 trimmed.
XTNT institutional ownership fell by 0.42 percentage points quarter-over-quarter, with a net change of -2 holders.
The top 10 institutions account for 99.0% of all reported 13F value in XTNT, 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.
Xtant Medical Holdings, Inc. (XTNT) Institutional Ownership