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TRST · Trustco Bank Corp N Y

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Market Cap
$986.25M
Shares
17.03M

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.

Holders: 188
Total Value: $727,867,494
Total Shares: 13,255,713
Showing 1–100 of 188 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 188 13F filers · Δ vs Mar 31, 2026
Top Holder
19.0%
Sep 2023 → Jun 2026 · range 18.3% – 21.9%
+0.1 pts
Top 5
49.4%
Sep 2023 → Jun 2026 · range 48.7% – 54.9%
+0.7 pts
Top 10
68.8%
Sep 2023 → Jun 2026 · range 65.2% – 69.1%
+1.3 pts
HHI
704
Sep 2023 → Jun 2026 · range 675 – 825
Broadly held+15

Quarterly Activity

vs Mar 31, 2026
New
24
Increased
54
Decreased
61
Sold Out
21
Unchanged
49
Holder count: +3
Institutional value: +22.1%
Shares held: -2.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 188
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 357301 CUSIP 898349204 13F (30d) 119 filings 118 filers Visit website Investor relations