Natural Alternatives International, Inc. (NAII) Ownership
NAII ownership summary
as of October 18, 2026- Institutions
- 36.4% of shares outstanding
- Insiders
- 21.40% of shares outstanding
- Shares outstanding
- 6.3M
- Float
- 4.7M shares available to trade
- Short interest
- 0.14% 6,864 shares short
- Days to cover
- 0.38 short interest down 47.8% vs prior month
- Institutions 36.40%
- Insiders 21.40%
- Other investors 42.19%
NAII top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | CALDWELL SUTTER CAPITAL INC | 7.95% | 498K | $572,953 | −572 (−0.1%) | June 30, 2026 |
| 2 | Dimensional Fund Advisors, Inc. | 5.36% | 336K | $386,157 | −18,950 (−5.3%) | June 30, 2026 |
| 3 | Morgan Stanley - Brokerage Accounts | 4.91% | 308K | $353,774 | +39,380 (+14.7%) | June 30, 2026 |
| 4 | Mink Brook Asset Management LLC | 4.68% | 293K | $337,464 | −262 (−0.1%) | June 30, 2026 |
| 5 | Renaissance Technologies Corp | 4.43% | 277K | $319,076 | −13,899 (−4.8%) | June 30, 2026 |
| 6 | Vanguard Capital Management, LLC | 3.37% | 211K | $242,512 | — | June 30, 2026 |
| 7 | Citadel Advisors Llc | 1.21% | 76K | $87,108 | +32,038 (+73.3%) | June 30, 2026 |
| 8 | Bridgeway Capital Management, LLC | 0.98% | 61K | $70,719 | −13,821 (−18.4%) | June 30, 2026 |
| 9 | Integrated Wealth Concepts LLC | 0.70% | 44K | $50,707 | +32,093 (+267.4%) | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 0.70% | 44K | $50,268 | −8,694 (−16.6%) | June 30, 2026 |
| 11 | Vanguard Fiduciary Trust Co | 0.43% | 27K | $31,159 | — | June 30, 2026 |
| 12 | Empowered Funds, LLC | 0.40% | 25K | $28,642 | — | June 30, 2026 |
| 13 | Susquehanna International Group, LLP | 0.32% | 20K | $22,902 | +19,915 (0.0%) | June 30, 2026 |
| 14 | HRT FINANCIAL LLC | 0.28% | 18K | $20,235 | +17,596 (0.0%) | June 30, 2026 |
| 15 | State Street Corp | 0.19% | 12K | $13,412 | — | June 30, 2026 |
| 16 | James Investment Research, Inc. | 0.16% | 10K | $11,525 | — | June 30, 2026 |
| 17 | Goss Wealth Management LLC | 0.16% | 10K | $11,525 | — | June 30, 2026 |
| 18 | Vanguard Global Advisers, LLC | 0.04% | 2,819 | $3,242 | — | June 30, 2026 |
| 19 | Tower Research Capital LLC | 0.03% | 2,028 | $2,332 | +918 (+82.7%) | June 30, 2026 |
| 20 | Mercer Global Advisors Inc. | 0.03% | 2,000 | $2,300 | +2,000 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 144K shares and 6 cut 56K.
NAII top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.54% | 159K | $182,902 | — | August 31, 2026 |
| 2 | DFA US Small Cap Value I | 2.26% | 142K | $162,763 | — | August 31, 2026 |
| 3 | DFA US Micro Cap I | 1.07% | 67K | $77,208 | — | August 31, 2026 |
| 4 | DFA US Small Cap I | 0.41% | 26K | $29,363 | — | August 31, 2026 |
| 5 | EA Bridgeway Omni Small-Cap Value ETF | 0.40% | 25K | $28,642 | — | September 30, 2026 |
| 6 | Fidelity Extended Market Index | 0.34% | 21K | $24,148 | −113 (−0.5%) | August 31, 2026 |
| 7 | Bridgeway Omni Small-Cap Value N | 0.29% | 18K | $20,815 | — | June 30, 2026 |
| 8 | Dimensional US Small Cap ETF | 0.27% | 17K | $19,455 | — | September 30, 2026 |
| 9 | DFA US Core Equity 2 I | 0.27% | 17K | $19,093 | — | August 31, 2026 |
| 10 | DFA US Core Equity 1 I | 0.15% | 9,699 | $11,154 | — | August 31, 2026 |
| 11 | EA Bridgeway Ultra-Small Company Mkt ETF | 0.14% | 8,480 | $9,752 | — | September 30, 2026 |
| 12 | DFA US Vector Equity I | 0.13% | 8,015 | $9,217 | — | August 31, 2026 |
| 13 | Fidelity Series Total Market Index | 0.09% | 5,665 | $6,515 | — | August 31, 2026 |
| 14 | Fidelity Total Market Index | 0.07% | 4,595 | $5,284 | — | August 31, 2026 |
| 15 | DFA US Core Equity Class F | 0.07% | 4,337 | $4,988 | — | July 31, 2026 |
| 16 | Fidelity Nasdaq Composite Index | 0.06% | 3,669 | $4,219 | — | August 31, 2026 |
| 17 | Vanguard U.S. Eq Idx £ Acc | 0.04% | 2,819 | $3,242 | — | August 31, 2026 |
| 18 | DFA US Social Core Equity 2 Portfolio | 0.03% | 2,100 | $2,415 | — | August 31, 2026 |
| 19 | Dimensional US Sm Company EUR Acc | 0.03% | 1,800 | $2,070 | — | August 31, 2026 |
| 20 | Dimensional World Equity GBP Acc | 0.02% | 1,300 | $1,495 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
NAII insider transactions
latest 13| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-06 | Mark A Ledoux | Buy | $2.80 | 532 | $1,490 |
| 2026-03-05 | Mark A Ledoux | Buy | $2.75 | 218 | $600 |
| 2026-03-04 | Mark A Ledoux | Buy | $2.77 | 500 | $1,385 |
| 2026-03-02 | Mark A Ledoux | Buy | $2.79 | 500 | $1,395 |
| 2026-02-27 | Mark A Ledoux | Buy | $2.80 | 250 | $700 |
| 2026-02-27 | Mark A Ledoux | Buy | $2.85 | 500 | $1,425 |
| 2026-02-25 | Mark A Ledoux | Buy | $2.81 | 500 | $1,405 |
| 2026-02-24 | Mark A Ledoux | Buy | $2.71 | 1,000 | $2,710 |
| 2026-02-23 | Mark A Ledoux | Buy | $2.70 | 750 | $2,025 |
| 2026-02-20 | Mark A Ledoux | Buy | $2.65 | 250 | $662 |
| 2026-02-19 | Mark A Ledoux | Buy | $2.56 | 1,500 | $3,840 |
| 2026-02-18 | Mark A Ledoux | Buy | $2.56 | 500 | $1,280 |
| 2026-02-17 | Mark A Ledoux | Buy | $2.60 | 2,500 | $6,500 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
NAII shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns NAII
Institutional investors own 36.4% of Natural Alternatives International's shares and insiders 21.40%. The largest holder is CALDWELL SUTTER CAPITAL INC with 7.95% of the shares (498K), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 6 reduced their stake in the latest filings. Short interest is 0.14% of the float, or 0.38 days of average trading volume. The share count fell 12.5% since 2014.
Related: NAII key metrics. See the NAII stock overview for the latest quote and news.
NAII ownership FAQ
Who owns the most Natural Alternatives International stock?
The largest shareholders of Natural Alternatives International are CALDWELL SUTTER CAPITAL INC (7.95%), Dimensional Fund Advisors, Inc. (5.36%), Morgan Stanley - Brokerage Accounts (4.91%), Mink Brook Asset Management LLC (4.68%), Renaissance Technologies Corp (4.43%).
What percentage of Natural Alternatives International is owned by institutions?
Institutions hold 36.4% of Natural Alternatives International's shares outstanding; insiders hold 21.40%.
Which funds own Natural Alternatives International?
The largest fund holders of Natural Alternatives International are Vanguard MStar Total Stk Mkt Idx Invest (2.54%), DFA US Small Cap Value I (2.26%), DFA US Micro Cap I (1.07%), DFA US Small Cap I (0.41%), EA Bridgeway Omni Small-Cap Value ETF (0.40%).
What is Natural Alternatives International's short interest?
6,864 shares of Natural Alternatives International were sold short, 0.14% of the float; at the average daily volume it would take 0.38 days to cover.
Are insiders buying or selling Natural Alternatives International?
Of the latest 13 reported insider transactions in Natural Alternatives International (since February 17, 2026), 13 were purchases and 0 were sales.
How many shares of Natural Alternatives International are outstanding?
Natural Alternatives International has 6.3M shares outstanding, of which 4.7M are in the public float.