LONA
LeonaBio, Inc.
$8.87
+0.49 (+5.85%)
At close · Jul 2
Market Cap
$83.32M
Shares
9,393,514
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 40
Total Value: $66,350,967
Total Shares: 6,454,376
Institutional Ownership Trend
3 quarters
Holder Concentration
Across 40 13F filers · Δ vs Dec 31, 2025Top Holder
28.8%
−1.2 pts
Top 5
64.3%
+3.8 pts
Top 10
89.3%
+2.0 pts
HHI
1,314
Broadly held+9
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
11
Decreased
6
Sold Out
8
Unchanged
17
Holder count:
-2
Institutional value:
+41.3%
Shares held:
+4.0%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid ADAR1 Capital Management, LLC | +333,780 | 727,481 | |
| Small ACORN CAPITAL ADVISORS, LLC | +132,800 | 634,539 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +49,379 | 80,323 | |
| Small Seven Fleet Capital Management LP | +36,725 | 164,676 | |
| Mega BlackRock, Inc. | +18,408 | 56,051 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega MILLENNIUM MANAGEMENT LLC | −292,767 | 31,678 | |
| Large ACADIAN ASSET MANAGEMENT LLC | −27,252 | 10,230 | |
| Large RENAISSANCE TECHNOLOGIES LLC | −10,925 | 64,222 | |
| Large OSAIC HOLDINGS, INC. | −3,030 | 6,180 | |
| Mega UBS Group AG | −2,089 | 1,299 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 194,760 | $2,002,132 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 40,039 | $411,600 | |
| Mega Vanguard Global Advisers, LLC | 1,325 | $13,621 | |
| Small Annis Gardner Whiting Capital Advisors, LLC | 1,000 | $10,280 | |
| Small Caitong International Asset Management Co., Ltd | 6 | $61 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 153,789 | $1,164,181 | |
| Large Pathstone Holdings, LLC | 38,606 | $292,247 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 20,936 | $158,485 | |
| Mega JANE STREET GROUP, LLC | 13,186 | $99,817 | |
| Small Scientech Research LLC | 10,108 | $76,517 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid PERCEPTIVE ADVISORS LLC | $19,113,830 | 28.81% | 1,859,322 | Shares | Sole | 2026-05-29 | ||||
| Mid ADAR1 Capital Management, LLC | $7,478,504 | 11.27% | 727,481 | Shares | Sole | 2026-05-18 | ||||
| Small ACORN CAPITAL ADVISORS, LLC | $6,523,060 | 9.83% | 634,539 | Shares | Sole | 2026-05-15 | ||||
| Mid TCG Crossover Management, LLC | $4,774,011 | 7.20% | 464,398 | Shares | Sole | 2026-05-15 | ||||
| Mid Commodore Capital LP | $4,774,011 | 7.20% | 464,398 | Shares | Sole | 2026-05-15 | ||||
| Mid NEA Management Company, LLC | $4,774,011 | 7.20% | 464,398 | Shares | Defined | 2026-05-15 | ||||
| Small Kalehua Capital Management LLC | $4,047,246 | 6.10% | 393,701 | Shares | Sole | 2026-05-15 | ||||
| Small Spruce Street Capital LP | $4,047,246 | 6.10% | 393,701 | Shares | Sole | 2026-05-14 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $2,002,132 | 3.02% | 194,760 | Shares | Defined | 2026-05-15 | ||||
| Small Seven Fleet Capital Management LP | $1,692,869 | 2.55% | 164,676 | Shares | Sole | 2026-05-15 | ||||
| Small Propel Bio Management, LLC | $1,534,588 | 2.31% | 149,279 | Shares | Defined | 2026-05-14 | ||||
| Small Simplify Asset Management Inc. | $1,534,588 | 2.31% | 149,279 | Shares | Sole | 2026-04-27 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $825,719 | 1.24% | 80,323 | Shares | Defined | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $660,202 | 1.00% | 64,222 | Shares | Sole | 2026-05-14 | ||||
| Mega BlackRock, Inc. | $576,204 | 0.87% | 56,051 | Shares | Sole | 2026-05-13 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $411,600 | 0.62% | 40,039 | Shares | Defined | 2026-05-08 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $334,778 | 0.50% | 32,566 | Shares | Defined | 2026-05-18 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $325,649 | 0.49% | 31,678 | Shares | Sole | 2026-05-15 | ||||
| Mid Laird Norton Wetherby Trust Company, LLC Bank | $224,288 | 0.34% | 21,818 | Shares | Sole | 2026-05-15 | ||||
| Mega STATE STREET CORP | $167,944 | 0.25% | 16,337 | Shares | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $147,970 | 0.22% | 14,394 | Shares | Defined | 2026-05-14 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $136,477 | 0.21% | 13,276 | Shares | Sole | 2026-05-15 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $105,164 | 0.16% | 10,230 | Shares | Defined | 2026-05-13 | ||||
| Large OSAIC HOLDINGS, INC. | $63,530 | 0.10% | 6,180 | Shares | Defined | 2026-05-15 | ||||
| Mega ROYAL BANK OF CANADA Bank | $22,873 | 0.03% | 2,225 | Shares | Defined | 2026-05-15 | ||||
| Mega Vanguard Global Advisers, LLC | $13,621 | 0.02% | 1,325 | Shares | Defined | 2026-05-08 | ||||
| Mega UBS Group AG | $13,353 | 0.02% | 1,299 | Shares | Defined | 2026-05-05 | ||||
| Small Annis Gardner Whiting Capital Advisors, LLC | $10,280 | 0.02% | 1,000 | Shares | Sole | 2026-05-06 | ||||
| Mega MORGAN STANLEY | $4,841 | 0.01% | 471 | Shares | Defined | 2026-05-15 | ||||
| Large NewEdge Advisors, LLC | $4,214 | 0.01% | 410 | Shares | Sole | 2026-06-03 | ||||
| Micro American Capital Advisory, LLC | $2,056 | 0.00% | 200 | Shares | Sole | 2026-04-29 | ||||
| Mid ROTHSCHILD INVESTMENT LLC | $1,542 | 0.00% | 150 | Shares | Sole | 2026-05-07 | ||||
| Small McIlrath & Eck, LLC | $842 | 0.00% | 82 | Shares | Sole | 2026-05-19 | ||||
| Large US BANCORP \DE\ Bank | $832 | 0.00% | 81 | Shares | Defined | 2026-05-15 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $339 | 0.00% | 33 | Shares | Sole | 2026-05-15 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $236 | 0.00% | 23 | Shares | Defined | 2026-05-12 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $123 | 0.00% | 12 | Shares | Defined | 2026-04-28 | ||||
| Mega JPMORGAN CHASE & CO | $123 | 0.00% | 12 | Shares | Defined | 2026-05-13 | ||||
| Small Caitong International Asset Management Co., Ltd | $61 | 0.00% | 6 | Shares | Sole | 2026-05-11 | ||||
| Mega CITIGROUP INC | $10 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
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