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Adds vs. Reduces by Quarter
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SPRO —
SPERO THERAPEUTICS INC
CUSIP: 84833T103 · Held by 2 superinvestors · Combined value: $4,078,633
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| # | Investor | % of Portfolio | Value ($) | Shares | Recent Activity | Share Change |
|---|---|---|---|---|---|---|
| 1 | Jim Simons | 0.0% | $2,981,286 | 1,279,522 | REDUCE | -173,243 |
| 2 | Ken Griffin | 0.0% | $1,097,347 | 470,964 | ADD | +416,164 |
| Investor | Activity | Share Change | % Change |
|---|---|---|---|
| Ken Griffin | ADD | +416,164 | +759.4% |
| Jim Simons | REDUCE | -173,243 | -11.9% |
| Investor | Activity | Share Change | % Change |
|---|---|---|---|
| Jim Simons | ADD | +620,600 | +74.6% |
| Ken Griffin | REDUCE | -186,186 | -77.3% |
Who Owns SPRO? Superinvestor Holdings
SPERO THERAPEUTICS INC is held by 2 tracked superinvestors, with a combined position value of $4 million . The largest positions are held by Jim Simons (0.0% of portfolio), Ken Griffin (0.0% of portfolio).
In the most recent quarter, 1 superinvestor added or initiated positions while 1 reduced or exited.