As of the latest SEC filings, Terrestrial Energy Inc. /DE/ (IMSR) is held by 21 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $4,095,410.00 in market value, representing a significant portion of its portfolio.
Funds holding Terrestrial Energy Inc. /DE/ (IMSR)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- IMSR
- CIK:
- 0002019804
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.00% | $4,095,410.00 | 682,000 | Mar 31, 2026 | May 28, 2026 |
|
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
|
ETF | Vanguard | 0.00% | $3,594,100.59 | 598,518 | Mar 31, 2026 | May 28, 2026 |
|
FSMAX
Fidelity Extended Market Index Fund
|
MF | Fidelity | 0.01% | $2,496,965.10 | 361,879 | Feb 28, 2026 | Apr 24, 2026 |
|
SCHA
Schwab U.S. Small-Cap ETF
|
ETF | Charles Schwab | 0.01% | $2,287,225.80 | 331,482 | Feb 28, 2026 | Apr 24, 2026 |
|
FSKAX
Fidelity Total Market Index Fund
|
MF | Fidelity | 0.00% | $910,323.90 | 131,931 | Feb 28, 2026 | Apr 24, 2026 |
|
FCFMX
Fidelity Series Total Market Index Fund
|
MF | Fidelity | 0.00% | $721,533.00 | 104,570 | Feb 28, 2026 | Apr 24, 2026 |
|
ADANX
AQR Diversified Arbitrage Fund
|
MF | Independent / Boutique | 0.02% | $354,709.35 | 59,069 | Mar 31, 2026 | May 22, 2026 |
|
FNCMX
Fidelity Nasdaq Composite Index Fund
|
MF | Fidelity | 0.00% | $326,156.10 | 47,269 | Feb 28, 2026 | Apr 24, 2026 |
|
SCHB
Schwab U.S. Broad Market ETF
|
ETF | Charles Schwab | 0.00% | $296,072.10 | 42,909 | Feb 28, 2026 | Apr 24, 2026 |
|
SWTSX
Schwab Total Stock Market Index Fund
|
MF | Charles Schwab | 0.00% | $278,784.00 | 38,400 | Apr 30, 2026 | Jun 25, 2026 |
|
FZROX
Fidelity ZERO Total Market Index Fund
|
MF | Fidelity | 0.00% | $199,998.48 | 27,548 | Apr 30, 2026 | Jun 26, 2026 |
|
FZIPX
Fidelity ZERO Extended Market Index Fund
|
MF | Fidelity | 0.01% | $134,128.50 | 18,475 | Apr 30, 2026 | Jun 26, 2026 |
|
ISCG
iShares Morningstar Small-Cap Growth ETF
|
ETF | BlackRock / iShares | 0.01% | $127,768.74 | 17,599 | Apr 30, 2026 | Jun 26, 2026 |
|
VBINX
VANGUARD BALANCED INDEX FUND
|
MF | Vanguard | 0.00% | $72,864.67 | 12,134 | Mar 31, 2026 | May 28, 2026 |
|
VITNX
VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND
|
MF | Vanguard | 0.00% | $62,620.14 | 10,428 | Mar 31, 2026 | May 28, 2026 |
|
FIDU
Fidelity MSCI Industrials Index ETF
|
ETF | Fidelity | 0.00% | $61,593.84 | 8,484 | Apr 30, 2026 | Jun 23, 2026 |
|
FLXSX
Fidelity Flex Small Cap Index Fund
|
MF | Fidelity | 0.01% | $59,437.62 | 8,187 | Apr 30, 2026 | Jun 26, 2026 |
|
TILT
FlexShares Morningstar US Market Factor Tilt Index Fund
|
ETF | Independent / Boutique | 0.00% | $36,895.32 | 5,082 | Apr 30, 2026 | Jun 25, 2026 |
|
ISCB
iShares Morningstar Small-Cap ETF
|
ETF | BlackRock / iShares | 0.01% | $16,756.08 | 2,308 | Apr 30, 2026 | Jun 25, 2026 |
|
ITOT
iShares Core S&P Total U.S. Stock Market ETF
|
ETF | BlackRock / iShares | 0.00% | $1,681.40 | 280 | Mar 31, 2026 | May 28, 2026 |
|
BXMYX
Blackstone Alternative Multi-Strategy Fund
|
MF | Independent / Boutique | 0.00% | -$16,213.52 | -2,700 | Mar 31, 2026 | May 27, 2026 |
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