Who owns TXNM (TXNM)
Which tracked institutional funds hold TXNM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TXNM 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
87 tracked funds added or opened TXNM while 89 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
TXNM’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes TXNM more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in TXNM 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 378 tracked filers holding TXNM, 195 increased or opened the position and 166 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 TXNM 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 24
- VANGUARD PORTFOLIO MANAGEMENT LLC$383M
- VANGUARD CAPITAL MANAGEMENT LLC$276M
- CAXTON ASSOCIATES LLP$41M
- VANGUARD FIDUCIARY TRUST CO$37M
- CIBRA Capital Ltd$17M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$15M
Full exits 23
- VANGUARD GROUP INC$690M
- 1832 Asset Management L.P.$207M
- NORGES BANK$182M
- SONA ASSET MANAGEMENT (US) LLC$108M
- Sagefield Capital LP$10M
- Covalis Capital LLP$9M
Largest adds
- BALYASNY ASSET MANAGEMENT L.P.$216M
- HBK INVESTMENTS L P$78M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$72M
- Pentwater Capital Management LP$66M
- UBS Group AG$45M
- MORGAN STANLEY$44M
Largest trims
- REAVES W H & CO INC$143M
- BlackRock, Inc.$107M
- CITADEL ADVISORS LLC$67M
- NEUBERGER BERMAN GROUP LLC$58M
- DIMENSIONAL FUND ADVISORS LP$53M
- D. E. Shaw & Co., Inc.$51M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 11,524,618 | $674M | 9.2% | 2026-Q1 |
| Blackstone Inc. | 8,000,000 | $468M | 6.4% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 7,133,543 | $417M | 5.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,549,899 | $383M | 5.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,714,718 | $276M | 3.7% | 2026-Q1 |
| STATE STREET CORP added | 3,883,309 | $227M | 3.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 3,529,510 | $206M | 2.8% | 2026-Q1 |
| HBK INVESTMENTS L P added | 3,040,938 | $178M | 2.4% | 2026-Q1 |
| Pentwater Capital Management LP added | 2,800,000 | $164M | 2.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,791,413 | $163M | 2.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,339,484 | $137M | 1.9% | 2026-Q1 |
| UBS Group AG added | 2,031,304 | $119M | 1.6% | 2026-Q1 |
| AQR Arbitrage LLC added | 1,765,847 | $103M | 1.4% | 2026-Q1 |
| Zimmer Partners, LP trimmed | 1,532,247 | $90M | 1.2% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 1,519,657 | $89M | 1.2% | 2026-Q1 |
| MORGAN STANLEY added | 1,478,197 | $86M | 1.2% | 2026-Q1 |
| Magnetar Financial LLC trimmed | 1,475,138 | $86M | 1.2% | 2026-Q1 |
| Empyrean Capital Partners, LP | 1,442,554 | $84M | 1.1% | 2026-Q1 |
| Verition Fund Management LLC added | 1,347,251 | $79M | 1.1% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 1,252,234 | $73M | 1.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,233,668 | $72M | 1.0% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,136,360 | $67M | 0.9% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,130,670 | $66M | 0.9% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,091,278 | $64M | 0.9% | 2026-Q1 |
| Melqart Asset Management (UK) Ltd added | 1,050,947 | $61M | 0.8% | 2026-Q1 |
| GABELLI FUNDS LLC added | 893,714 | $52M | 0.7% | 2026-Q1 |
| Alberta Investment Management Corp added | 891,387 | $52M | 0.7% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 857,183 | $50M | 0.7% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 818,066 | $48M | 0.6% | 2026-Q1 |
| Invesco Ltd. trimmed | 798,718 | $47M | 0.6% | 2026-Q1 |
| Hudson Bay Capital Management LP trimmed | 792,110 | $46M | 0.6% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 755,326 | $44M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 753,314 | $44M | 0.6% | 2026-Q1 |
| MARSHALL WACE, LLP added | 716,634 | $42M | 0.6% | 2026-Q1 |
| LMR Partners LLP added | 698,496 | $41M | 0.6% | 2026-Q1 |
| CAXTON ASSOCIATES LLP added | 695,635 | $41M | 0.6% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 685,364 | $40M | 0.5% | 2026-Q1 |
| WATER ISLAND CAPITAL LLC added | 674,867 | $39M | 0.5% | 2026-Q1 |
| Sand Grove Capital Management LLP added | 662,081 | $39M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 639,622 | $37M | 0.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 631,321 | $37M | 0.5% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 583,665 | $34M | 0.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 565,921 | $33M | 0.4% | 2026-Q1 |
| NEXPOINT ASSET MANAGEMENT, L.P. added | 540,239 | $32M | 0.4% | 2026-Q1 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 515,726 | $30M | 0.4% | 2026-Q1 |
| ALPINE ASSOCIATES MANAGEMENT INC. added | 512,106 | $30M | 0.4% | 2026-Q1 |
| READYSTATE ASSET MANAGEMENT LP | 456,446 | $27M | 0.4% | 2026-Q1 |
| Legal & General Group Plc trimmed | 445,979 | $26M | 0.4% | 2026-Q1 |
| Governors Lane LP trimmed | 444,414 | $26M | 0.4% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 414,901 | $24M | 0.3% | 2026-Q1 |
| Woodline Partners LP trimmed | 413,843 | $24M | 0.3% | 2026-Q1 |
| Squarepoint Ops LLC added | 373,882 | $22M | 0.3% | 2026-Q1 |
| FMR LLC trimmed | 373,514 | $22M | 0.3% | 2026-Q1 |
| River Road Asset Management, LLC trimmed | 360,823 | $21M | 0.3% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. added | 346,186 | $20M | 0.3% | 2026-Q1 |
| CITIGROUP INC added | 339,638 | $20M | 0.3% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 329,179 | $19M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 322,117 | $19M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 305,595 | $18M | 0.2% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 299,476 | $18M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 292,991 | $17M | 0.2% | 2026-Q1 |
| CIBRA Capital Ltd new | 283,458 | $17M | 0.2% | 2026-Q1 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 278,275 | $16M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 268,251 | $16M | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 249,098 | $15M | 0.2% | 2026-Q1 |
| Groupe la Francaise added | 311,832 | $13M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 225,265 | $13M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 220,414 | $13M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 217,670 | $13M | 0.2% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 200,990 | $12M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 194,000 | $11M | 0.2% | 2026-Q1 |
| PICTON MAHONEY ASSET MANAGEMENT added | 190,000 | $11M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 187,909 | $11M | 0.1% | 2026-Q1 |
| Yaupon Capital Management LP trimmed | 174,858 | $10M | 0.1% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 171,831 | $10M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 165,410 | $10M | 0.1% | 2026-Q1 |
| Weiss Asset Management LP new | 165,405 | $10M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 165,168 | $10M | 0.1% | 2026-Q1 |
| TORONTO DOMINION BANK added | 160,695 | $9M | 0.1% | 2026-Q1 |
| Athos Capital Ltd added | 160,242 | $9M | 0.1% | 2026-Q1 |
| CREDIT INDUSTRIEL ET COMMERCIAL added | 154,653 | $9M | 0.1% | 2026-Q1 |
| Capricorn Fund Managers Ltd added | 151,009 | $9M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 11,720,834 | $690M | 9.4% | 2025-Q4 stale |
| 1832 Asset Management L.P. new | 1,540,000 | $207M | 2.8% | 2025-Q4 stale |
| NORGES BANK added | 3,092,063 | $182M | 2.5% | 2025-Q4 stale |
| SONA ASSET MANAGEMENT (US) LLC added | 1,834,874 | $108M | 1.5% | 2025-Q4 stale |
| COHEN & STEERS, INC. added | 759,491 | $43M | 0.6% | 2025-Q2 stale |
| Merewether Investment Management, LP new | 746,700 | $40M | 0.5% | 2025-Q1 stale |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC added | 649,067 | $37M | 0.5% | 2025-Q3 stale |
| Alyeska Investment Group, L.P. trimmed | 543,278 | $31M | 0.4% | 2025-Q3 stale |
| HITE Hedge Asset Management LLC added | 537,121 | $29M | 0.4% | 2025-Q1 stale |
| Vennlight Capital Management, LP added | 495,727 | $27M | 0.4% | 2025-Q1 stale |
| SIR Capital Management, L.P. added | 412,179 | $22M | 0.3% | 2025-Q1 stale |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 329,620 | $19M | 0.3% | 2025-Q2 stale |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 258,880 | $14M | 0.2% | 2025-Q1 stale |
| LOOMIS SAYLES & CO L P added | 244,027 | $14M | 0.2% | 2025-Q2 stale |
| THORNBURG INVESTMENT MANAGEMENT INC trimmed | 207,615 | $12M | 0.2% | 2025-Q3 stale |
| Sagefield Capital LP added | 171,136 | $10M | 0.1% | 2025-Q4 stale |
| Ausbil Investment Management Ltd added | 180,156 | $10M | 0.1% | 2025-Q1 stale |
| Covalis Capital LLP trimmed | 160,154 | $9M | 0.1% | 2025-Q4 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.