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ECOR

electroCore, Inc.

Company with tickers: ECOR

CIK
1560258
CUSIP
28531P202
Shares Outstanding
8,295,707
13F Activity (30d)
28 filings 28 filers
Holders: 30
Total Value: $4,870,747
Total Shares: 807,755

Institutional Ownership Trend

13 quarters

Holder Concentration

Across 30 13F filers · Δ vs Dec 31, 2025
Top Holder
25.1%
Jun 2023 → Mar 2026 · range 18.6% – 59.5%
−0.9 pts
Top 5
62.3%
Jun 2023 → Mar 2026 · range 59.9% – 90.9%
+2.3 pts
Top 10
86.0%
Jun 2023 → Mar 2026 · range 83.4% – 99.6%
+2.1 pts
HHI
1,165
Jun 2023 → Mar 2026 · range 1,071 – 3,893
Broadly held +40

Quarterly Activity

vs Dec 31, 2025
New
7
Increased
5
Decreased
5
Sold Out
8
Unchanged
13
Holder count: -1
Institutional value: +16.0%
Shares held: -13.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega GEODE CAPITAL MANAGEMENT, LLC +7,886 78,083
Small Jaffetilchin Investment Partners, LLC +5,835 58,198
Mega ROYAL BANK OF CANADA +1,939 2,000
Mega UBS Group AG +962 8,423
Mega BlackRock, Inc. +686 26,776

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC −42,100 46,620
Large RENAISSANCE TECHNOLOGIES LLC −10,077 44,409
Mega MORGAN STANLEY −3,835 367
Mega TWO SIGMA INVESTMENTS, LP −300 19,121
Mid Tower Research Capital LLC (TRC) −177 112

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 202,644 $1,221,943
Large Balyasny Asset Management L.P. 116,463 $702,271
Mega VANGUARD FIDUCIARY TRUST CO 38,528 $232,323
Small WealthShield Partners, LLC 25,978 $156,647
Mega Vanguard Global Advisers, LLC 1,771 $10,679

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 242,943 $1,089,598
Small Tejara Capital Ltd 100,378 $450,195
Mid DRW Securities, LLC 58,768 $263,574
Mega CITADEL ADVISORS LLC 34,644 $155,378
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP 19,188 $86,058
Filter: New 7 Increased 5 Reduced 5 Sold out 8 Unchanged 13
30 of 30 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,221,943 25.09% 202,644
Large Balyasny Asset Management L.P. $702,271 14.42% 116,463
Mega GEODE CAPITAL MANAGEMENT, LLC $470,839 9.67% 78,083
Small Jaffetilchin Investment Partners, LLC $350,933 7.20% 58,198
Mid Wealthspire Advisors, LLC $286,412 5.88% 47,498
Mid INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC $281,118 5.77% 46,620
Large RENAISSANCE TECHNOLOGIES LLC $267,786 5.50% 44,409
Mega VANGUARD FIDUCIARY TRUST CO Bank $232,323 4.77% 38,528
Large HighTower Advisors, LLC $213,112 4.38% 35,342
Mega BlackRock, Inc. $161,458 3.31% 26,776
Mega STATE STREET CORP $159,903 3.28% 26,518
Small WealthShield Partners, LLC $156,647 3.22% 25,978
Mega TWO SIGMA INVESTMENTS, LP $115,299 2.37% 19,121
Mega NORTHERN TRUST CORP Bank $67,035 1.38% 11,117
Micro TOBIAS FINANCIAL ADVISORS, INC. $60,300 1.24% 10,000
Mega UBS Group AG $50,790 1.04% 8,423
Small BFSG, LLC $23,287 0.48% 3,862
Mega ROYAL BANK OF CANADA Bank $12,060 0.25% 2,000
Large Rockefeller Capital Management L.P. $11,734 0.24% 1,946
Mega Vanguard Global Advisers, LLC $10,679 0.22% 1,771
Small Kozak & Associates, Inc. $4,015 0.08% 666
Micro Rialto Wealth Management, LLC $3,823 0.08% 634
Mega MORGAN STANLEY $2,212 0.05% 367
Mega WELLS FARGO & COMPANY/MN $1,875 0.04% 311
Small Prestige Wealth Management Group LLC $1,628 0.03% 270
Mid Tower Research Capital LLC (TRC) $675 0.01% 112
Mid Allworth Financial LP $434 0.01% 72
Mega BNP PARIBAS ARBITRAGE, SA $144 0.00% 24
Mega JPMORGAN CHASE & CO $6 0.00% 1
Mega CITIGROUP INC $6 0.00% 1

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