Who owns TXNM Energy (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-Q2 13F filings (latest filed 2026-09-22). 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
78 tracked funds added or opened TXNM while 100 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp 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 2026-Q1 and 2026-Q2, across 360 tracked filers holding TXNM, 190 increased or opened the position and 180 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 2026-Q1 and 2026-Q2 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 20
- NORGES BANK$129M
- RENAISSANCE TECHNOLOGIES LLC$37M
- Calamos Advisors LLC$22M
- Trexquant Investment LP$15M
- PSquared Asset Management AG$15M
- Nearwater Capital Markets, Ltd$13M
Full exits 31
- Zimmer Partners, LP$90M
- CIBRA Capital Ltd$17M
- Athos Capital Ltd$9M
- Capricorn Fund Managers Ltd$9M
- Aberdeen Group plc$9M
- New York Life Investment Management LLC$9M
Largest adds
- Pentwater Capital Management LP$205M
- BlackRock, Inc.$155M
- Qube Research & Technologies Ltd$45M
- Governors Lane LP$35M
- Invesco Ltd.$22M
- Melqart Asset Management (UK) Ltd$16M
Largest trims
- HBK INVESTMENTS L P$150M
- UBS Group AG$73M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$68M
- MILLENNIUM MANAGEMENT LLC$66M
- JPMORGAN CHASE & CO$51M
- Empyrean Capital Partners, LP$38M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 14,595,837 | $829M | 13.7% | 2026-Q2 |
| Blackstone Inc. | 8,000,000 | $454M | 7.5% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 7,113,061 | $404M | 6.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 6,740,196 | $383M | 6.3% | 2026-Q2 |
| Pentwater Capital Management LP added | 6,487,500 | $368M | 6.1% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 4,842,279 | $275M | 4.6% | 2026-Q2 |
| STATE STREET CORP added | 4,124,968 | $234M | 3.9% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,996,464 | $170M | 2.8% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 2,470,809 | $140M | 2.3% | 2026-Q2 |
| NORGES BANK trimmed | 2,264,722 | $129M | 2.1% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 2,206,304 | $125M | 2.1% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 2,084,253 | $118M | 2.0% | 2026-Q2 |
| AQR Arbitrage LLC added | 1,812,443 | $103M | 1.7% | 2026-Q2 |
| MORGAN STANLEY added | 1,583,353 | $90M | 1.5% | 2026-Q2 |
| Magnetar Financial LLC trimmed | 1,448,220 | $82M | 1.4% | 2026-Q2 |
| Melqart Asset Management (UK) Ltd added | 1,370,244 | $78M | 1.3% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 1,328,638 | $78M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,262,285 | $72M | 1.2% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,208,968 | $69M | 1.1% | 2026-Q2 |
| Invesco Ltd. added | 1,203,808 | $68M | 1.1% | 2026-Q2 |
| Verition Fund Management LLC trimmed | 1,203,109 | $68M | 1.1% | 2026-Q2 |
| Governors Lane LP added | 1,079,170 | $61M | 1.0% | 2026-Q2 |
| LMR Partners LLP added | 943,488 | $54M | 0.9% | 2026-Q2 |
| GABELLI FUNDS LLC added | 933,521 | $53M | 0.9% | 2026-Q2 |
| MARSHALL WACE, LLP added | 889,956 | $51M | 0.8% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 889,385 | $51M | 0.8% | 2026-Q2 |
| Hudson Bay Capital Management LP added | 888,032 | $50M | 0.8% | 2026-Q2 |
| Empyrean Capital Partners, LP trimmed | 812,554 | $46M | 0.8% | 2026-Q2 |
| NEXPOINT ASSET MANAGEMENT, L.P. added | 811,090 | $46M | 0.8% | 2026-Q2 |
| UBS Group AG trimmed | 803,015 | $46M | 0.8% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 791,704 | $45M | 0.7% | 2026-Q2 |
| Alberta Investment Management Corp trimmed | 791,387 | $45M | 0.7% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 746,544 | $42M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 743,474 | $42M | 0.7% | 2026-Q2 |
| WATER ISLAND CAPITAL LLC added | 737,734 | $42M | 0.7% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC added | 688,984 | $39M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 666,367 | $38M | 0.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 645,558 | $37M | 0.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 609,070 | $35M | 0.6% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 549,405 | $31M | 0.5% | 2026-Q2 |
| Sand Grove Capital Management LLP trimmed | 506,546 | $29M | 0.5% | 2026-Q2 |
| HBK INVESTMENTS L P trimmed | 484,938 | $28M | 0.5% | 2026-Q2 |
| ALPINE ASSOCIATES MANAGEMENT INC. trimmed | 433,368 | $25M | 0.4% | 2026-Q2 |
| Squarepoint Ops LLC added | 430,937 | $24M | 0.4% | 2026-Q2 |
| Legal & General Group Plc trimmed | 427,046 | $24M | 0.4% | 2026-Q2 |
| Weiss Asset Management LP added | 411,513 | $23M | 0.4% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 395,077 | $22M | 0.4% | 2026-Q2 |
| GABELLI & Co INVESTMENT ADVISERS, INC. added | 391,636 | $22M | 0.4% | 2026-Q2 |
| Calamos Advisors LLC new | 380,686 | $22M | 0.4% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 375,613 | $21M | 0.4% | 2026-Q2 |
| READYSTATE ASSET MANAGEMENT LP trimmed | 372,964 | $21M | 0.4% | 2026-Q2 |
| CAXTON ASSOCIATES LLP trimmed | 372,254 | $21M | 0.3% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 362,001 | $21M | 0.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 360,040 | $20M | 0.3% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 352,411 | $20M | 0.3% | 2026-Q2 |
| Groupe la Francaise added | 341,953 | $14M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 336,267 | $19M | 0.3% | 2026-Q2 |
| River Road Asset Management, LLC trimmed | 316,352 | $18M | 0.3% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 315,011 | $18M | 0.3% | 2026-Q2 |
| Capula Management Ltd added | 307,584 | $17M | 0.3% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT added | 300,000 | $17M | 0.3% | 2026-Q2 |
| Man Group plc added | 299,090 | $17M | 0.3% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 297,087 | $17M | 0.3% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 286,261 | $16M | 0.3% | 2026-Q2 |
| Woodline Partners LP trimmed | 280,760 | $16M | 0.3% | 2026-Q2 |
| PSquared Asset Management AG new | 274,400 | $15M | 0.3% | 2026-Q2 |
| Nuveen, LLC added | 272,933 | $15M | 0.3% | 2026-Q2 |
| Trexquant Investment LP new | 270,666 | $15M | 0.3% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 265,004 | $15M | 0.3% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS trimmed | 263,295 | $15M | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 234,603 | $13M | 0.2% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 227,345 | $13M | 0.2% | 2026-Q2 |
| Nearwater Capital Markets, Ltd new | 223,100 | $13M | 0.2% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 219,290 | $12M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 214,209 | $12M | 0.2% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 213,525 | $12M | 0.2% | 2026-Q2 |
| Polar Asset Management Partners Inc. added | 212,868 | $12M | 0.2% | 2026-Q2 |
| Birnam Oak Advisors, LP added | 198,018 | $11M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 196,700 | $11M | 0.2% | 2026-Q2 |
| Public Sector Pension Investment Board added | 178,000 | $10M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System added | 173,148 | $10M | 0.2% | 2026-Q2 |
| CITIGROUP INC trimmed | 161,356 | $9M | 0.2% | 2026-Q2 |
| CREDIT INDUSTRIEL ET COMMERCIAL added | 160,279 | $9M | 0.2% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 149,080 | $8M | 0.1% | 2026-Q2 |
| NINE MASTS CAPITAL Ltd added | 138,521 | $8M | 0.1% | 2026-Q2 |
| ProShare Advisors LLC added | 134,247 | $8M | 0.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 127,385 | $7M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 123,541 | $7M | 0.1% | 2026-Q2 |
| Magellan Asset Management Ltd added | 116,027 | $7M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 114,211 | $6M | 0.1% | 2026-Q2 |
| FMR LLC trimmed | 113,718 | $6M | 0.1% | 2026-Q2 |
| TORONTO DOMINION BANK trimmed | 112,495 | $6M | 0.1% | 2026-Q2 |
| Lighthouse Investment Partners, LLC added | 112,164 | $6M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 112,141 | $6M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 106,960 | $6M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 103,053 | $6M | 0.1% | 2026-Q2 |
| STANSBERRY ASSET MANAGEMENT, LLC trimmed | 102,623 | $6M | 0.1% | 2026-Q2 |
| OCCUDO QUANTITATIVE STRATEGIES LP trimmed | 101,419 | $6M | 0.1% | 2026-Q2 |
| Phocas Financial Corp. trimmed | 97,364 | $6M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 92,727 | $5M | 0.1% | 2026-Q2 |
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.