Security key
28531P202
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 1,170,893
- Total 13F value
- $6,184,193
- Share change
- -170,717
- SEC-reported price per share
- $5.28
- Number of holders
- 30
- Value change
- -$1,040,842
- Number of buys
- 13
- Number of sells
- 13
- Shares outstanding
- 8,485,000
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
30
Top holders
10
ECOR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Previous quarter: Q1 2025
electroCore, Inc. SEC filings
electroCore, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 28531P202
Recent filing periods:
Ownership snapshot
Top reported holders of ECOR - electroCore, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Tianyi Zhang
Disclosed value leader
AWM Investment Company, Inc.
Comparable rows
15/15
Latest evidence
15 May 2025
13D/G
13F
Lead comparable stake: 9.9%
13D/G row: Tianyi Zhang
Showing 1-6 of 15 holder rows.
Quick read
Tianyi Zhang leads the comparable SEC ownership view at 9.9%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Tianyi Zhang's linked filing trail.
Comparable ownership
Top 5
Tianyi Zhang
9.9%
MAZ Partners LP
1.6%
AWM Investment Company, Inc.
3.7%
VANGUARD GROUP INC
2.7%
RENAISSANCE TECHNOLOGIES LLC
2.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tianyi Zhang |
13D/G
|
9.9%
|
—
734,638 shares
|
$0 | 15 May 2025 |
| MAZ Partners LP |
13D/G
|
1.6%
|
—
|
$0 | 13 May 2025 |
| AWM Investment Company, Inc. |
13F
Company
|
3.7%
|
$2,128,129
318,106 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
2.7%
|
$1,554,308
232,333 shares
|
— | 31 Mar 2025 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
2.1%
|
$1,193,663
178,425 shares
|
— | 31 Mar 2025 |
| NewEdge Advisors, LLC |
13F
Company
|
1.9%
|
$1,083,479
161,955 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
30
Shares
1,170,893
Rows available
30
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
34
Q2 2025 holders
30
Holder diff
-4
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend