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Of the 10 tracked institutions holding SLS, 3 have a 3-year clone track record — 3 of them beat the S&P. Average holder's clone alpha: +4.5pt. 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 10 tracked institutional investors we monitor, SLS (SELLAS LIFE SCIENCES GROUP I) is held with a combined value of $125.97M across 30,700,012 shares. The largest holder is BlackRock, Inc. with a position worth $51.60M. 4 funds opened new positions in the most recent quarter. 5 funds increased their holdings. 1 fund reduced its position.
Total Institutional Value
$125.97M
Total Shares Held
30,700,012
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $51.60M | 0.00% | +61.8% |
| 2 | STATE STREET CORP | $35.52M | 0.00% | +283.7% |
| 3 | VANGUARD GROUP INC | $31.92M | 0.00% | +23.8% |
| 4 | MILLENNIUM MANAGEMENT LLC | $4.24M | 0.00% | -27.8% |
| 5 | WELLINGTON MANAGEMENT GROUP LLP | $1.46M | 0.00% | New |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $517.00K | 0.00% | +93.8% |
| 7 | CITADEL ADVISORS LLC | $273.43K | 0.00% | New |
| 8 | AQR CAPITAL MANAGEMENT LLC | $228.38K | 0.00% | New |
| 9 | Magnetar Financial LLC | $148.19K | 0.00% | New |
| 10 | FMR LLC | $65.83K | 0.00% | +107.6% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of SLS with a position worth $51.60M, representing 0.00% of their portfolio. In total, 10 institutional investors hold SLS with a combined value of $125.97M.
In the most recent quarter, 4 funds opened a new position in SLS. Additionally, 5 increased their holdings and 1 reduced their positions.
Institutional investors hold $125.97M worth of SLS stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $51.60M 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 SLS, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their SLS positions.
Last Close
$11.32
2026-07-24
YTD
+160.2%
71% of 52-week range
