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Of the 6 tracked institutions holding IMSR, 2 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: +8.4pt. It's a gauge of who owns the name, not just how many.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Among the 6 tracked institutional investors we monitor, IMSR (TERRESTRIAL ENERGY INC) is held with a combined value of $31.69M across 5,245,009 shares. The largest holder is VANGUARD GROUP INC with a position worth $11.30M. VANGUARD GROUP INC opened a new position in the most recent quarter. 4 funds increased their holdings. 1 fund reduced its position.
Total Institutional Value
$31.69M
Total Shares Held
5,245,009
Institutional Holders
6
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $11.30M | 0.00% | New |
| 2 | CITADEL ADVISORS LLC | $7.67M | 0.01% | -37.1% |
| 3 | BlackRock, Inc. | $6.73M | 0.00% | +2.6% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $2.45M | 0.00% | +136.1% |
| 5 | STATE STREET CORP | $2.07M | 0.00% | +5.8% |
| 6 | Magnetar Financial LLC | $1.47M | 0.01% | +880.5% |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of IMSR with a position worth $11.30M, representing 0.00% of their portfolio. In total, 6 institutional investors hold IMSR with a combined value of $31.69M.
In the most recent quarter, 1 fund opened a new position in IMSR. Additionally, 4 increased their holdings and 1 reduced their positions.
Institutional investors hold $31.69M worth of IMSR stock across 6 positions. The largest institutional holder is VANGUARD GROUP INC with $11.30M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For IMSR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their IMSR positions.
Last Close
$5.06
2026-07-27
YTD
-22.5%
2% of 52-week range
