Who owns NAT (NAT)
Which tracked institutional funds hold NAT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NAT company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on NAT is one-sided between 2025-Q4 and 2026-Q1: 80 added or opened and 9 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
NAT’s largest tracked holder by dollar value, DIMENSIONAL FUND ADVISORS LP, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in NAT divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 239 tracked filers holding NAT, 140 increased or opened the position and 93 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in NAT between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 19
- VANGUARD PORTFOLIO MANAGEMENT LLC$9M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$4M
- Connor, Clark & Lunn Investment Management Ltd.$4M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$4M
- ExodusPoint Capital Management, LP$3M
- MARSHALL WACE, LLP$2M
Full exits 4
- CenterBook Partners LP$13M
- VANGUARD GROUP INC$5M
- TWO SIGMA ADVISERS, LP$874K
- Verition Fund Management LLC$520K
Largest adds
- DIMENSIONAL FUND ADVISORS LP$31M
- BlackRock, Inc.$29M
- Nuveen, LLC$28M
- AMERIPRISE FINANCIAL INC$26M
- MORGAN STANLEY$15M
- GOLDMAN SACHS GROUP INC$14M
Largest trims
- UBS Group AG$2M
- MILLENNIUM MANAGEMENT LLC$688K
- STIFEL FINANCIAL CORP$540K
- CAPTRUST FINANCIAL ADVISORS$369K
- WELLS FARGO & COMPANY/MN$293K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP added | 12,189,811 | $71M | 11.6% | 2026-Q1 |
| BlackRock, Inc. added | 12,018,169 | $70M | 11.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 8,261,483 | $48M | 7.8% | 2026-Q1 |
| MORGAN STANLEY added | 6,180,156 | $36M | 5.9% | 2026-Q1 |
| CastleKnight Management LP added | 5,263,646 | $31M | 5.0% | 2026-Q1 |
| Nuveen, LLC added | 4,982,910 | $29M | 4.7% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 4,579,555 | $27M | 4.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 4,575,380 | $27M | 4.3% | 2026-Q1 |
| STATE STREET CORP added | 4,261,974 | $25M | 4.0% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 4,047,909 | $24M | 3.8% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,550,315 | $15M | 2.4% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 1,594,772 | $9M | 1.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,557,955 | $9M | 1.5% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 1,557,906 | $9M | 1.5% | 2026-Q1 |
| Philip James Wealth Mangement, LLC added | 1,317,587 | $8M | 1.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 1,264,402 | $7M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,163,913 | $7M | 1.1% | 2026-Q1 |
| Simcoe Capital LLC added | 1,040,332 | $6M | 1.0% | 2026-Q1 |
| Empowered Funds, LLC added | 949,606 | $6M | 0.9% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 882,105 | $5M | 0.8% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 854,283 | $5M | 0.8% | 2026-Q1 |
| UBS Group AG trimmed | 823,496 | $5M | 0.8% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 803,478 | $5M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 776,372 | $5M | 0.7% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 746,979 | $4M | 0.7% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 708,107 | $4M | 0.7% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 690,392 | $4M | 0.7% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 689,618 | $4M | 0.7% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 639,272 | $4M | 0.6% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 605,116 | $4M | 0.6% | 2026-Q1 |
| XTX Topco Ltd added | 599,404 | $4M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 588,525 | $3M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 536,954 | $3M | 0.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 534,977 | $3M | 0.5% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 511,927 | $3M | 0.5% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 498,649 | $3M | 0.5% | 2026-Q1 |
| WealthTrust Axiom LLC trimmed | 476,460 | $3M | 0.5% | 2026-Q1 |
| BARCLAYS PLC added | 473,990 | $3M | 0.4% | 2026-Q1 |
| Mariner, LLC trimmed | 435,180 | $3M | 0.4% | 2026-Q1 |
| SILVER OAK SECURITIES, INCORPORATED added | 435,109 | $3M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 392,771 | $2M | 0.4% | 2026-Q1 |
| Quantbot Technologies LP added | 378,839 | $2M | 0.4% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 346,649 | $2M | 0.3% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 342,939 | $2M | 0.3% | 2026-Q1 |
| Thomist Capital Management, LP added | 338,900 | $2M | 0.3% | 2026-Q1 |
| SBI Securities Co., Ltd. added | 334,942 | $2M | 0.3% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 301,123 | $2M | 0.3% | 2026-Q1 |
| Walleye Capital LLC added | 298,338 | $2M | 0.3% | 2026-Q1 |
| Squarepoint Ops LLC added | 265,236 | $2M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 263,472 | $2M | 0.2% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 248,827 | $1M | 0.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 241,031 | $1M | 0.2% | 2026-Q1 |
| Panoramic Capital, LLC new | 225,000 | $1M | 0.2% | 2026-Q1 |
| Rathbones Group PLC | 205,950 | $1M | 0.2% | 2026-Q1 |
| NORGES BANK | 480,769 | $1M | 0.2% | 2026-Q1 |
| HighTower Advisors, LLC added | 196,622 | $1M | 0.2% | 2026-Q1 |
| GROUP ONE TRADING LLC added | 194,552 | $1M | 0.2% | 2026-Q1 |
| Invesco Ltd. trimmed | 182,406 | $1M | 0.2% | 2026-Q1 |
| Cetera Investment Advisers trimmed | 178,717 | $1M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 176,861 | $1M | 0.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 166,979 | $978K | 0.2% | 2026-Q1 |
| MML INVESTORS SERVICES, LLC trimmed | 166,145 | $974K | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 158,177 | $927K | 0.1% | 2026-Q1 |
| Numerai GP LLC trimmed | 157,546 | $923K | 0.1% | 2026-Q1 |
| FMR LLC added | 153,733 | $901K | 0.1% | 2026-Q1 |
| Ethic Inc. trimmed | 151,848 | $890K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 149,477 | $876K | 0.1% | 2026-Q1 |
| Pinpoint Asset Management (Singapore) Pte. Ltd. new | 146,430 | $858K | 0.1% | 2026-Q1 |
| CITIGROUP INC trimmed | 145,334 | $852K | 0.1% | 2026-Q1 |
| Creative Planning added | 144,893 | $849K | 0.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC new | 137,559 | $806K | 0.1% | 2026-Q1 |
| Tidal Investments LLC added | 134,206 | $786K | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO added | 130,281 | $763K | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 220,101 | $757K | 0.1% | 2026-Q1 |
| Graham Capital Management, L.P. added | 126,959 | $744K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 113,949 | $668K | 0.1% | 2026-Q1 |
| MetLife Investment Management, LLC added | 107,574 | $630K | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 100,982 | $592K | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 100,691 | $590K | 0.1% | 2026-Q1 |
| MYDA Advisors LLC new | 100,000 | $586K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 94,348 | $553K | 0.1% | 2026-Q1 |
| IMC-Chicago, LLC trimmed | 93,481 | $548K | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 92,956 | $545K | 0.1% | 2026-Q1 |
| Ellevest, Inc. trimmed | 90,274 | $529K | 0.1% | 2026-Q1 |
| LSV ASSET MANAGEMENT new | 86,200 | $505K | 0.1% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 78,861 | $462K | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 77,875 | $456K | 0.1% | 2026-Q1 |
| Manatuck Hill Partners, LLC new | 75,000 | $440K | 0.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 74,523 | $437K | 0.1% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 69,467 | $406K | 0.1% | 2026-Q1 |
| EntryPoint Capital, LLC added | 67,792 | $397K | 0.1% | 2026-Q1 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 62,937 | $387K | 0.1% | 2026-Q1 |
| CenterBook Partners LP added | 3,700,409 | $13M | 2.1% | 2025-Q4 stale |
| VANGUARD GROUP INC added | 1,445,089 | $5M | 0.8% | 2025-Q4 stale |
| DARK FOREST CAPITAL MANAGEMENT LP added | 408,512 | $1M | 0.2% | 2025-Q2 stale |
| SeaCrest Wealth Management, LLC trimmed | 408,850 | $1M | 0.2% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP trimmed | 254,200 | $874K | 0.1% | 2025-Q4 stale |
| MQS Management LLC added | 230,850 | $725K | 0.1% | 2025-Q3 stale |
| Verition Fund Management LLC | 151,043 | $520K | 0.1% | 2025-Q4 stale |
| Qube Research & Technologies Ltd trimmed | 205,265 | $505K | 0.1% | 2025-Q1 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.