TRST · Trustco Bank Corp N Y · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 187 13F filersWho Holds TRST
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 187 filers, like-for-like change -2.6%; actively managed books -3.2%; index-like books -1.9%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 44.0% | 84 | -4.1% |
| Adviser | 9.9% | 7 | +0.1% |
| Bank | 12.3% | 14 | -0.4% |
| Insurer | 0.8% | 2 | -2.8% |
| Broker-dealer | 0.0% | 1 | +0.2% |
| Benefit plan | 0.4% | 3 | +53.9% |
| Non-US | 0.7% | 7 | -4.0% |
| Holding company | 21.5% | 6 | -3.7% |
| Exempt adviser | 0.0% | 0 | -100.0% |
| Unknown | 10.3% | 63 | +1.4% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 44.1% | 31 | -1.9% |
| Systematic-like | 2.6% | 12 | -21.4% |
| Concentrated | 7.1% | 25 | +0.9% |
| Diversified active | 46.2% | 119 | -2.5% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 71.4% | 114 | -1.3% |
| Medium turnover | 15.5% | 36 | -0.6% |
| High turnover | 3.2% | 19 | -28.5% |
| Unknown | 9.9% | 18 | -4.0% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 10.7% | 24 | -4.5% |
| Medium horizon | 27.4% | 27 | -1.6% |
| Long horizon | 59.4% | 126 | -2.2% |
| Unknown | 2.5% | 10 | -13.6% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.8% | 32 | -6.0% |
| $1B to $10B | 17.2% | 44 | -2.5% |
| $10B to $100B | 8.2% | 57 | -10.4% |
| $100B or more | 72.8% | 54 | -1.6% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.0% | 41 | +5.8% |
| Pooled investment vehicles | 3.6% | 7 | -12.2% |
| Registered funds and BDCs | 28.1% | 16 | -2.0% |
| Pension and profit sharing plans | 0.0% | 1 | +1472.5% |
| Insurance companies | 0.2% | 3 | +19.9% |
| Governments and sovereign funds | 0.4% | 1 | -37.2% |
| Other investment advisers | 0.1% | 3 | +1.4% |
| Other | 0.1% | 2 | -2.8% |
| Diversified | 10.5% | 10 | -6.1% |
| Unknown | 56.0% | 103 | -1.4% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 7.8% | 14 | -10.6% |
| Private equity funds | 0.4% | 6 | -0.6% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.0% | 3 | +136.3% |
| Securitized asset funds | 0.2% | 1 | +0.1% |
| Other private funds | 12.0% | 11 | -1.6% |
| Mixed private funds | 0.1% | 1 | 0.0% |
| No private funds | 23.5% | 47 | -3.8% |
| Private funds, type not stated | 0.0% | 0 | — |
| Unknown | 56.0% | 103 | -1.1% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 96.8% | 161 | -2.3% |
| Outside the US | 3.2% | 26 | -12.1% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 2 holders with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
187 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 11.7% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies TRST's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | PLUG Plug Power Inc | 3 |
| 2 | COLB Columbia Banking System, Inc. | 3 |
| 3 | KEY Keycorp | 3 |
| 4 | GEHC GE HealthCare Technologies Inc. | 3 |
| 5 | MO Altria Group, Inc. | 7 |
| 6 | AEP American Electric Power Co Inc | 5 |
| 7 | VXF Vanguard Extended Market ETF | 4 |
| 8 | T At&T Inc. | 6 |
| 9 | GE General Electric Co | 8 |
| 10 | GEV GE Vernova Inc. | 8 |
Shareholder Targets
13F filers that own its peers but not TRST, quarter ended Jun 30, 2026Found through its holder-overlap peers: PLUG, COLB, KEY, GEHC, MO, AEP, VXF, T, GE, GEV, IVZ, INTC, EFU, IBM, BNY, VLO, CAT, ORCL, AMAT, XOM. 6,410 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Capital Research Global Investors Adviser, Diversified active | $56,005,213,295 11 held | AMAT, GE, INTC |
| 2 | NORGES BANK Non-US, Index-like | $46,190,236,882 14 held | INTC, XOM, AMAT |
| 3 | Capital World Investors Adviser, Diversified active | $34,178,929,164 12 held | INTC, GEV, GE |
| 4 | NVIDIA CORP Unknown, Concentrated | $29,989,261,126 1 held | INTC |
| 5 | Fisher Asset Management, LLC Adviser, Diversified active | $26,225,596,105 19 held | CAT, GE, XOM |
| 6 | STATE FARM MUTUAL AUTOMOBILE INSURANCE CO Insurer, Diversified active | $25,021,243,767 8 held | CAT, XOM, INTC |
| 7 | Amundi Holding company, Index-like | $23,849,883,842 18 held | AMAT, INTC, XOM |
| 8 | Capital International Investors Adviser, Diversified active | $18,991,770,809 6 held | GE, INTC, XOM |
| 9 | TCI FUND MANAGEMENT LTD Exempt adviser, Concentrated | $17,725,353,519 1 held | GE |
| 10 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $16,016,980,877 17 held | GE, INTC, XOM |
Fund Ownership of TRST by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 27.80% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 5.08% | 864,630 |
| Index ETFs | 22.72% | 3,868,655 |
| Active ETFs | 2.78% | 472,550 |
| Active funds | 8.23% | 1,401,457 |
| Unclassified | 3.53% | 600,741 |
| All registered funds | 42.33% | 7,208,033 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $138,232,130 | 19.01% | 2,517,431 | Shares | 2026-08-07 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $62,608,434 | 8.61% | 1,140,201 | Shares | 2026-08-11 | |
| Mid SYSTEMATIC FINANCIAL MANAGEMENT LP Registered adviser | $60,457,172 | 8.31% | 1,101,023 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $50,673,418 | 6.97% | 922,845 | Shares | 2026-09-22 | |
| Mid HoldCo Asset Management, LP Adviser | $47,922,373 | 6.59% | 872,744 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $41,160,206 | 5.66% | 749,594 | Shares | 2026-08-13 | |
| Mega AMERICAN CENTURY COMPANIES INC | $33,462,703 | 4.60% | 609,410 | Shares | 2026-08-12 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $28,367,273 | 3.90% | 516,614 | Shares | 2026-08-12 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $21,241,604 | 2.92% | 386,844 | Shares | 2026-08-13 | |
| Mega Invesco Ltd. Adviser | $16,304,643 | 2.24% | 296,934 | Shares | 2026-08-14 | |
| Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Registered adviser | $15,285,241 | 2.10% | 278,369 | Shares | 2026-08-14 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $12,639,128 | 1.74% | 230,179 | Shares | 2026-08-13 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $11,236,233 | 1.54% | 204,630 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $11,218,274 | 1.54% | 204,303 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $9,239,431 | 1.27% | 168,265 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $8,855,002 | 1.22% | 161,264 | Shares | 2026-08-06 | |
| Large GABELLI FUNDS LLC Registered adviser | $8,233,370 | 1.13% | 149,943 | Shares | 2026-08-12 | |
| Mega MORGAN STANLEY Holding company | $8,002,632 | 1.10% | 145,741 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $7,554,957 | 1.04% | 137,588 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $6,839,150 | 0.94% | 124,552 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $6,569,814 | 0.90% | 119,647 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $6,418,979 | 0.88% | 116,900 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $5,705,312 | 0.78% | 103,903 | Shares | 2026-08-13 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $5,675,442 | 0.78% | 103,359 | Shares | 2026-08-13 | |
| Small TRUSTCO BANK CORP N Y Bank | $5,125,353 | 0.70% | 93,341 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $5,061,274 | 0.70% | 92,174 | Shares | 2026-08-11 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $4,637,369 | 0.64% | 84,454 | Shares | 2026-08-04 | |
| Large Empowered Funds, LLC Registered adviser | $4,275,951 | 0.59% | 77,872 | Shares | 2026-08-17 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $3,537,411 | 0.49% | 64,422 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $3,439,506 | 0.47% | 62,639 | Shares | 2026-08-14 | |
| Large Public Sector Pension Investment Board Non-US | $3,295,533 | 0.45% | 60,017 | Shares | 2026-08-13 | |
| Mega Nuveen, LLC | $3,234,801 | 0.44% | 58,911 | Shares | 2026-08-11 | |
| Mega FRANKLIN RESOURCES INC Adviser | $3,123,114 | 0.43% | 56,877 | Shares | 2026-08-13 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $2,758,513 | 0.38% | 50,237 | Shares | 2026-08-12 | |
| Large State of New Jersey Common Pension Fund D | $2,327,634 | 0.32% | 42,390 | Shares | 2026-08-04 | |
| Mega Legal & General Group Plc | $2,205,514 | 0.30% | 40,166 | Shares | 2026-08-14 | |
| Small GLOBEFLEX CAPITAL L P Registered adviser | $2,052,535 | 0.28% | 37,380 | Shares | 2026-08-12 | |
| Large HRT FINANCIAL LP | $1,991,036 | 0.27% | 36,260 | Shares | 2026-08-14 | |
| Large INTECH INVESTMENT MANAGEMENT LLC Registered adviser | $1,888,629 | 0.26% | 34,395 | Shares | 2026-08-10 | |
| Mega Swiss National Bank | $1,829,601 | 0.25% | 33,320 | Shares | 2026-08-11 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $1,784,080 | 0.25% | 32,491 | Shares | 2026-08-24 | |
| Mid WINTON GROUP Ltd | $1,641,918 | 0.23% | 29,902 | Shares | 2026-08-07 | |
| Mega SEI INVESTMENTS CO Holding company | $1,480,977 | 0.20% | 26,971 | Shares | 2026-08-14 | |
| Mid Campbell & CO Investment Adviser LLC Registered adviser | $1,448,361 | 0.20% | 26,377 | Shares | 2026-08-03 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $1,369,729 | 0.19% | 24,945 | Shares | 2026-08-14 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $1,348,312 | 0.19% | 24,555 | Shares | 2026-08-13 | |
| Large Quantinno Capital Management LP Registered adviser | $1,337,607 | 0.18% | 24,360 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $1,332,994 | 0.18% | 24,276 | Shares | 2026-08-14 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $1,305,265 | 0.18% | 23,771 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO Bank | $1,149,759 | 0.16% | 20,939 | Shares | 2026-08-12 | |
| Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | $1,140,425 | 0.16% | 20,769 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $1,140,149 | 0.16% | 20,764 | Shares | 2026-08-03 | |
| Small Ellsworth Advisors, LLC Registered adviser | $1,038,567 | 0.14% | 19,130 | Shares | 2026-10-15 | |
| Large Cerity Partners LLC Registered adviser | $1,023,521 | 0.14% | 18,640 | Shares | 2026-08-14 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $1,021,380 | 0.14% | 18,601 | Shares | 2026-08-12 | |
| Mega DEUTSCHE BANK AG\ Non-US | $991,180 | 0.14% | 18,051 | Shares | 2026-08-07 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $971,412 | 0.13% | 17,691 | Shares | 2026-08-13 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $960,375 | 0.13% | 17,490 | Shares | 2026-08-14 | |
| Small SummerHaven Investment Management, LLC | $911,311 | 0.13% | 16,786 | Shares | 2026-10-19 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $909,364 | 0.13% | 16,561 | Shares | 2026-08-12 | |
| Mega RAYMOND JAMES FINANCIAL INC | $901,017 | 0.12% | 16,409 | Shares | 2026-08-14 | |
| Mega FMR LLC Holding company | $862,965 | 0.12% | 15,716 | Shares | 2026-08-13 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $854,289 | 0.12% | 15,558 | Shares | 2026-08-06 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $841,604 | 0.12% | 15,327 | Shares | 2026-08-14 | |
| Small EntryPoint Capital, LLC Registered adviser | $745,677 | 0.10% | 13,580 | Shares | 2026-08-13 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $690,053 | 0.09% | 12,567 | Shares | 2026-08-13 | |
| Mega PNC FINANCIAL SERVICES GROUP, INC. Bank | $670,999 | 0.09% | 12,220 | Shares | 2026-08-07 | |
| Mega Russell Investments Group, Ltd. | $669,461 | 0.09% | 12,192 | Shares | 2026-08-06 | |
| Mid Hennion & Walsh Asset Management, Inc. Adviser | $645,508 | 0.09% | 11,890 | Shares | 2026-10-13 | |
| Large Thrivent Financial for Lutherans Registered adviser | $630,092 | 0.09% | 11,475 | Shares | 2026-08-14 | |
| Small R Squared Ltd | $622,514 | 0.09% | 11,337 | Shares | 2026-08-05 | |
| Large NATIXIS ADVISORS, LLC Registered adviser | $570,789 | 0.08% | 10,395 | Shares | 2026-08-14 | |
| Large FIRST MANHATTAN CO. LLC. Adviser | $565,573 | 0.08% | 10,300 | Shares | 2026-08-14 | |
| Large Pathstone Holdings, LLC | $563,815 | 0.08% | 10,268 | Shares | 2026-08-13 | |
| Large MetLife Investment Management, LLC Registered adviser | $540,314 | 0.07% | 9,840 | Shares | 2026-08-14 | |
| Mega BARCLAYS PLC Bank | $523,676 | 0.07% | 9,537 | Shares | 2026-08-14 | |
| Mid Illinois Municipal Retirement Fund | $511,376 | 0.07% | 9,313 | Shares | 2026-08-12 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $508,960 | 0.07% | 9,269 | Shares | 2026-08-14 | |
| Mid Engineers Gate Manager LP | $485,624 | 0.07% | 8,844 | Shares | 2026-08-14 | |
| Large Rafferty Asset Management, LLC Registered adviser | $476,893 | 0.07% | 8,685 | Shares | 2026-08-14 | |
| Mega Jupiter Topco LLC | $470,688 | 0.06% | 8,572 | Shares | 2026-08-14 | |
| Mid XTX Topco Ltd | $469,041 | 0.06% | 8,542 | Shares | 2026-08-14 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $451,744 | 0.06% | 8,227 | Shares | 2026-08-06 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $437,358 | 0.06% | 7,965 | Shares | 2026-08-14 | |
| Small Odyssean, LLC Registered adviser | $434,393 | 0.06% | 7,911 | Shares | 2026-08-14 | |
| Small King Wealth Management Group | $416,986 | 0.06% | 7,594 | Shares | 2026-08-05 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $405,839 | 0.06% | 7,391 | Shares | 2026-07-29 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $401,556 | 0.06% | 7,313 | Shares | 2026-08-14 | |
| Mid Louisiana State Employees Retirement System | $396,317 | 0.05% | 7,300 | Shares | 2026-10-20 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $385,907 | 0.05% | 7,028 | Shares | 2026-08-13 | |
| Large Zurcher Kantonalbank (Zurich Cantonalbank) Non-US | $358,836 | 0.05% | 6,535 | Shares | 2026-08-12 | |
| Large Vanguard Investments Australia, Ltd. | $354,224 | 0.05% | 6,451 | Shares | 2026-08-13 | |
| Mid Tower Research Capital LLC (TRC) | $343,516 | 0.05% | 6,256 | Shares | 2026-08-11 | |
| Mega HSBC HOLDINGS PLC | $328,746 | 0.05% | 5,987 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $313,316 | 0.04% | 5,706 | Shares | 2026-08-13 | |
| Mid TWO SIGMA SECURITIES, LLC | $312,822 | 0.04% | 5,697 | Shares | 2026-08-14 | |
| Large GUGGENHEIM CAPITAL LLC | $310,625 | 0.04% | 5,657 | Shares | 2026-08-12 | |
| Mega LPL Financial LLC Broker-dealer | $306,782 | 0.04% | 5,587 | Shares | 2026-08-07 | |
| Small RETIREMENT PLANNING GROUP, LLC / NY Registered adviser | $302,883 | 0.04% | 5,516 | Shares | 2026-08-07 | |
| Small DUTCH ASSET Corp Registered adviser | $298,595 | 0.04% | 5,500 | Shares | 2026-10-20 |
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