BIOATLA INC (BCAB) Institutional Ownership Changes & 13F Activity
BIOATLA INC (BCAB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Acorn Capital Advisors, Llc, Millennium Management Llc, Vanguard Capital Management Llc, Acadian Asset Management Llc, and Geode Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Acorn Capital Advisors, Llc | Sell | -5,298,219 | -98.0% | 108,126 | $447.64K | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Sell | -228,107 | -100.0% | 0 | $0.00 | Q2 2026 | May 18, 2026 |
| Twin Lakes Capital Management, Llc | Sell | -7,200 | -100.0% | 0 | $0.00 | Q2 2026 | May 18, 2026 |
| Millennium Management Llc | Sell | -2,756,674 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Geode Capital Management, Llc | Sell | -689,182 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Citadel Advisors Llc | Sell | -435,675 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| State Street Corp | Sell | -151,377 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Xtx Topco Ltd | Sell | -56,614 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Morgan Stanley | Sell | -55,426 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Mai Capital Management | Sell | -51,504 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Susquehanna International Group, Llp | Sell | -39,056 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Tower Research Capital Llc (Trc) | Sell | -16,996 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Jones Financial Companies Lllp | Sell | -2,000 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Osaic Holdings, Inc. | Sell | -500 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Renaissance Technologies LLC | Sell | -510,514 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Northern Trust Corp | Sell | -103,494 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Simplex Trading, Llc | Sell | -73,901 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Stonepine Capital Management, Llc | Sell | -65,387 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Stonex Group Inc. | Sell | -29,466 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Acadian Asset Management Llc | Sell | -1,233,919 | -100.0% | 0 | $0.00 | Q2 2026 | May 13, 2026 |
| Blackrock, Inc. | Sell | -480,931 | -100.0% | 0 | $0.00 | Q2 2026 | May 13, 2026 |
| Mariner, Llc | Sell | -16,000 | -100.0% | 0 | $0.00 | Q2 2026 | May 13, 2026 |
| Jane Street Group, Llc | Sell | -23,142 | -100.0% | 0 | $0.00 | Q2 2026 | May 12, 2026 |
| Bnp Paribas Financial Markets | Sell | -472 | -100.0% | 0 | $0.00 | Q2 2026 | May 12, 2026 |
| Vanguard Capital Management Llc | Sell | -1,649,252 | -100.0% | 0 | $0.00 | Q2 2026 | May 08, 2026 |
| Vanguard Fiduciary Trust Co | Sell | -273,427 | -100.0% | 0 | $0.00 | Q2 2026 | May 08, 2026 |
| Vanguard Global Advisers, Llc | Sell | -16,635 | -100.0% | 0 | $0.00 | Q2 2026 | May 08, 2026 |
| Deutsche Bank Ag\ | Sell | -525,352 | -100.0% | 0 | $0.00 | Q2 2026 | May 06, 2026 |
| Ubs Group Ag | Sell | -375,569 | -100.0% | 0 | $0.00 | Q2 2026 | May 05, 2026 |
| Kestra Advisory Services, Llc | Sell | -44,250 | -100.0% | 0 | $0.00 | Q2 2026 | Apr 30, 2026 |
Frequently asked questions about BCAB activity
Which institutional owners are buying BCAB?
Institutional owners buying BCAB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in BCAB activity?
"Buy" means an investor increased their reported position in BCAB compared to the prior reporting period. This reflects growing exposure to BIOATLA INC (BCAB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in BCAB increasing?
Institutional interest in BCAB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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