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Of the 9 tracked institutions holding IMSR, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +5.7pt. 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 9 tracked institutional investors we monitor, IMSR (TERRESTRIAL ENERGY INC) is held with a combined value of $24.58M across 3,865,639 shares. The largest holder is VANGUARD GROUP INC with a position worth $11.30M. 4 funds opened new positions in the most recent quarter. 1 fund increased its holdings. 3 funds reduced their position.
Total Institutional Value
$24.58M
Total Shares Held
3,865,639
Institutional Holders
9
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 | BlackRock, Inc. | $7.61M | 0.00% | -4.1% |
| 3 | STATE STREET CORP | $2.45M | 0.00% | +0.3% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $1.30M | 0.00% | -54.9% |
| 5 | Magnetar Financial LLC | $737.06K | 0.01% | - |
| 6 | MILLENNIUM MANAGEMENT LLC | $679.93K | 0.00% | New |
| 7 | AQR CAPITAL MANAGEMENT LLC | $423.22K | 0.00% | New |
| 8 | CITADEL ADVISORS LLC | $71.23K | 0.00% | -99.2% |
| 9 | FMR LLC | $9.20K | 0.00% | New |
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, 9 institutional investors hold IMSR with a combined value of $24.58M.
In the most recent quarter, 4 funds opened a new position in IMSR. Additionally, 1 increased their holdings and 3 reduced their positions.
Institutional investors hold $24.58M worth of IMSR stock across 9 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
$2.94
2026-10-21
YTD
-55.0%
1% of 52-week range
