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Of the 10 tracked institutions holding LBRX, 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, LBRX (LB PHARMACEUTICALS INC) is held with a combined value of $178.31M across 7,339,049 shares. The largest holder is BlackRock, Inc. with a position worth $60.93M. 3 funds opened new positions in the most recent quarter. 5 funds increased their holdings.
Total Institutional Value
$178.31M
Total Shares Held
7,339,049
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. | $60.93M | 0.00% | +10.4% |
| 2 | RA CAPITAL MANAGEMENT, L.P. | $54.46M | 0.58% | - |
| 3 | VANGUARD GROUP INC | $24.77M | 0.00% | New |
| 4 | STATE STREET CORP | $12.44M | 0.00% | +101.7% |
| 5 | CITADEL ADVISORS LLC | $10.28M | 0.01% | +2.3% |
| 6 | FMR LLC | $5.49M | 0.00% | +0.3% |
| 7 | BAKER BROS. ADVISORS LP | $4.93M | 0.03% | - |
| 8 | MILLENNIUM MANAGEMENT LLC | $3.38M | 0.00% | New |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $1.30M | 0.00% | New |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $327.00K | 0.00% | +19.5% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of LBRX with a position worth $60.93M, representing 0.00% of their portfolio. In total, 10 institutional investors hold LBRX with a combined value of $178.31M.
In the most recent quarter, 3 funds opened a new position in LBRX. Additionally, 5 increased their holdings.
Institutional investors hold $178.31M worth of LBRX stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $60.93M 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 LBRX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their LBRX positions.
None this quarter.
Last Close
$35.01
2026-07-24
YTD
+71.3%
96% of 52-week range
