Security key
654484153
NIOCORP DEVELOPMENTS LTD - *W EXP 03/17/202 (NIOBW)
CUSIP: 654484153
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / *W EXP 03/17/202
- Total 13F shares
- 3,297,003
- Total 13F value
- $6,711,431
- Share change
- +511,172
- SEC-reported price per share
- $1.84
- Number of holders
- 23
- Value change
- +$1,301,912
- Number of buys
- 8
- Number of sells
- 7
Report period
Q3 2025
Institutions
23
Top holders
10
NIOBW full security history
Ownership snapshot
Full 13F holder table
NIOCORP DEVELOPMENTS LTD SEC filings
NIOCORP DEVELOPMENTS LTD company facts
Broader feeds
Ownership snapshot
Top reported holders of NIOBW - NIOCORP DEVELOPMENTS LTD - *W EXP 03/17/202 (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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
0/15
Latest evidence
18 Aug 2025
13F
3/4/5
Highest disclosed value: $6,001,249
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. has the largest disclosed position value at $6M.
0 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 BlackRock, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock, Inc.
$6M
PRIVATE MANAGEMENT GROUP INC
$4.89M
VANGUARD GROUP INC
$4.87M
Alyeska Investment Group, L.P.
$3.91M
Michael G. Maselli
$2.51M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$6,001,249
2,575,643 shares
|
— | 30 Jun 2025 |
| PRIVATE MANAGEMENT GROUP INC |
13F
Company
|
—
denominator unverified
|
$4,889,652
2,098,563 shares
|
— | 30 Jun 2025 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$4,872,330
2,091,129 shares
|
— | 30 Jun 2025 |
| Alyeska Investment Group, L.P. |
13F
Company
|
—
denominator unverified
|
$3,907,967
1,677,239 shares
|
— | 30 Jun 2025 |
| Michael G. Maselli |
3/4/5
Director
|
—
mixed-class rows
|
$2,505,907
903,077 shares
mixed-class rows
|
— | 18 Aug 2025 |
| NORTHERN TRUST CORP |
13F
Company
|
—
denominator unverified
|
$2,116,798
908,497 shares
|
— | 30 Jun 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 Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
23
Shares
3,297,003
Rows available
23
| 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 Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
20
Q3 2025 holders
23
Holder diff
3
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|