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TRST

Trustco Bank Corp N Y

Company with tickers: TRST

CIK
357301
CUSIP
898349204
Shares Outstanding
17,474,811
13F Activity (30d)
149 filings 144 filers
Holders: 185
Total Value: $596,188,018
Total Shares: 13,617,820
Showing 1–100 of 185 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 185 13F filers · Δ vs Dec 31, 2025
Top Holder
18.8%
Jun 2023 → Mar 2026 · range 17.1% – 20.4%
−0.0 pts
Top 5
48.7%
Jun 2023 → Mar 2026 · range 48.7% – 57.4%
−2.1 pts
Top 10
67.4%
Jun 2023 → Mar 2026 · range 65.2% – 72.8%
−1.4 pts
HHI
689
Jun 2023 → Mar 2026 · range 674 – 878
Broadly held −27

Quarterly Activity

vs Dec 31, 2025
New
28
Increased
47
Decreased
69
Sold Out
21
Unchanged
41
Holder count: +7
Institutional value: +1.7%
Shares held: -4.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega Invesco Ltd. +112,107 286,158
Mega TWO SIGMA INVESTMENTS, LP +89,756 220,331
Mega GEODE CAPITAL MANAGEMENT, LLC +43,230 498,625
Large HRT FINANCIAL LP +41,119 67,434
Large GABELLI FUNDS LLC +38,450 151,443

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega FRANKLIN RESOURCES INC −326,722 56,492
Mega BlackRock, Inc. −110,770 2,566,363
Mega GOLDMAN SACHS GROUP INC −92,723 181,243
Large Trexquant Investment LP −43,663 23,344
Mid ROYCE & ASSOCIATES LP −23,792 15,656

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 819,113 $35,860,767
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 372,698 $16,316,718
Mega VANGUARD FIDUCIARY TRUST CO 115,729 $5,066,615
Large Empowered Funds, LLC 79,672 $3,488,040
Small Ellsworth Advisors, LLC 18,848 $825,165

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 1,300,043 $53,730,775
Large Verition Fund Management LLC 303,586 $12,547,209
Large TWO SIGMA ADVISERS, LP 71,706 $2,963,608
Large Brandywine Global Investment Management, LLC 33,722 $1,393,730
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM 27,348 $1,130,292
Filter: New 28 Increased 47 Reduced 69 Sold out 21 Unchanged 41
Showing 100 of 185
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $112,355,367 18.85% 2,566,363
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $51,009,522 8.56% 1,165,133
Mega DIMENSIONAL FUND ADVISORS LP $49,799,922 8.35% 1,137,504
Mega STATE STREET CORP $39,011,569 6.54% 891,082
Mid HoldCo Asset Management, LP $38,208,732 6.41% 872,744
Mega VANGUARD CAPITAL MANAGEMENT LLC $35,860,767 6.02% 819,113
Mega AMERICAN CENTURY COMPANIES INC $24,731,891 4.15% 564,913
Mega GEODE CAPITAL MANAGEMENT, LLC $21,829,802 3.66% 498,625
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $16,316,718 2.74% 372,698
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $12,756,134 2.14% 291,369
Mega Invesco Ltd. $12,527,994 2.10% 286,158
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $10,039,585 1.68% 229,319
Mega TWO SIGMA INVESTMENTS, LP $9,646,091 1.62% 220,331
Mega NORTHERN TRUST CORP Bank $8,629,821 1.45% 197,118
Mega GOLDMAN SACHS GROUP INC $7,934,818 1.33% 181,243
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $7,398,732 1.24% 168,998
Mega Bank of New York Mellon Corp Bank $7,236,437 1.21% 165,291
Large GABELLI FUNDS LLC $6,630,174 1.11% 151,443
Mega MORGAN STANLEY $6,472,211 1.09% 147,835
Mega UBS Group AG $5,898,260 0.99% 134,725
Mega AQR CAPITAL MANAGEMENT LLC $5,657,380 0.95% 129,223
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $5,531,690 0.93% 126,352
Mega VANGUARD FIDUCIARY TRUST CO Bank $5,066,615 0.85% 115,729
Small TRUSTCO BANK CORP N Y Bank $4,052,407 0.68% 92,563
Mega PRINCIPAL FINANCIAL GROUP INC $3,835,127 0.64% 87,600
Mega FIRST TRUST ADVISORS LP $3,813,238 0.64% 87,100
Mega BANK OF AMERICA CORP /DE/ Bank $3,602,348 0.60% 82,283
Large Empowered Funds, LLC $3,488,040 0.59% 79,672
Large ACADIAN ASSET MANAGEMENT LLC $3,360,815 0.56% 76,766
Mega AMERIPRISE FINANCIAL INC $3,171,642 0.53% 72,445
Large State of New Jersey Common Pension Fund D Pension $3,142,046 0.53% 71,769
Large HRT FINANCIAL LP $2,952,260 0.50% 67,434
Large Public Sector Pension Investment Board Pension $2,825,342 0.47% 64,535
Mega RHUMBLINE ADVISERS $2,481,231 0.42% 56,675
Mega FRANKLIN RESOURCES INC $2,473,217 0.41% 56,492
Mega JANE STREET GROUP, LLC $2,077,842 0.35% 47,461
Mid INTECH INVESTMENT MANAGEMENT LLC $1,957,578 0.33% 44,714
Mega Nuveen, LLC $1,895,673 0.32% 43,300
Mega Legal & General Group Plc $1,839,940 0.31% 42,027
Small GLOBEFLEX CAPITAL L P $1,636,496 0.27% 37,380
Mega Swiss National Bank Bank $1,611,979 0.27% 36,820
Mid WINTON GROUP Ltd $1,450,562 0.24% 33,133
Large Connor, Clark & Lunn Investment Management Ltd. $1,427,928 0.24% 32,616
Mega CITADEL ADVISORS LLC $1,397,939 0.23% 31,931
Mega FMR LLC $1,317,076 0.22% 30,084
Large SEI INVESTMENTS CO $1,177,681 0.20% 26,900
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $1,073,570 0.18% 24,522
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,050,676 0.18% 23,999
Large Trexquant Investment LP $1,022,000 0.17% 23,344
Mid Campbell & CO Investment Adviser LLC $1,007,596 0.17% 23,015
Large Quantinno Capital Management LP $949,544 0.16% 21,689
Small SummerHaven Investment Management, LLC $945,385 0.16% 21,594
Mega JPMORGAN CHASE & CO $916,971 0.15% 20,945
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $909,266 0.15% 20,769
Large Cerity Partners LLC $863,385 0.14% 19,721
Small Ellsworth Advisors, LLC $825,165 0.14% 18,848
Large PRUDENTIAL FINANCIAL INC $808,660 0.14% 18,471
Large ALPS ADVISORS INC $788,477 0.13% 18,010
Mega DEUTSCHE BANK AG\ Bank $787,251 0.13% 17,982
Mega ALLIANCEBERNSTEIN L.P. $765,712 0.13% 17,490
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $756,518 0.13% 17,280
Mega CITIGROUP INC $742,200 0.12% 16,953
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $742,114 0.12% 16,951
Mid ROYCE & ASSOCIATES LP $685,419 0.11% 15,656
Mega MILLENNIUM MANAGEMENT LLC $618,698 0.10% 14,132
Small EntryPoint Capital, LLC $594,532 0.10% 13,580
Mega PNC FINANCIAL SERVICES GROUP, INC. $589,015 0.10% 13,454
Mega VANGUARD ASSET MANAGEMENT, Ltd $550,183 0.09% 12,567
Mid Hennion & Walsh Asset Management, Inc. $532,846 0.09% 12,171
Large Thrivent Financial for Lutherans $526,848 0.09% 12,034
Large VOYA INVESTMENT MANAGEMENT LLC $525,141 0.09% 11,995
Large Rafferty Asset Management, LLC $522,251 0.09% 11,929
Large Balyasny Asset Management L.P. $518,792 0.09% 11,850
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $506,972 0.09% 11,580
Large ExodusPoint Capital Management, LP $503,688 0.08% 11,505
Mega BARCLAYS PLC $496,682 0.08% 11,345
Mid XTX Topco Ltd $484,863 0.08% 11,075
Small R Squared Ltd $478,821 0.08% 10,937
Mid Brevan Howard Capital Management LP $460,302 0.08% 10,514
Large NATIXIS ADVISORS, LLC $457,763 0.08% 10,456
Large Pathstone Holdings, LLC $456,756 0.08% 10,433
Large FIRST MANHATTAN CO. LLC. $450,934 0.08% 10,300
Mid Y-Intercept (Hong Kong) Ltd $445,855 0.07% 10,184
Large MetLife Investment Management, LLC $427,905 0.07% 9,774
Mid State of Alaska, Department of Revenue $422,563 0.07% 9,652
Mid Illinois Municipal Retirement Fund Pension $421,820 0.07% 9,635
Mega JANUS HENDERSON GROUP PLC $375,282 0.06% 8,572
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $362,235 0.06% 8,274
Mega RAYMOND JAMES FINANCIAL INC $356,762 0.06% 8,149
Mid Louisiana State Employees Retirement System Pension $350,240 0.06% 8,000
Large STRS OHIO $350,240 0.06% 8,000
Mega WELLS FARGO & COMPANY/MN $346,560 0.06% 7,916
Small Odyssean, LLC $346,343 0.06% 7,911
Large CWM, LLC $338,375 0.06% 7,729
Small INCEPTIONR LLC $337,324 0.06% 7,705
Large Universal- Beteiligungs- und Servicegesellschaft mbH $336,230 0.06% 7,680
Small King Wealth Management Group $332,290 0.06% 7,590
Mega Vanguard Global Advisers, LLC $307,685 0.05% 7,028
Mid Tower Research Capital LLC (TRC) $293,676 0.05% 6,708
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $286,102 0.05% 6,535
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