BIOATLA INC (BCAB) Top Institutional Shareholders
BIOATLA INC (BCAB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $2.27M in BCAB holdings during the latest filing period.
Acorn Capital Advisors, Llc is currently the largest disclosed institutional shareholder of BCAB tracked by InsiderSet, reporting ownership valued at approximately $865,015 in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $19.19M, representing an estimated gain of +2118.75% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 93% of the total disclosed BCAB value among the investors covered in this analysis. Major shareholders include Acorn Capital Advisors, Llc, Millennium Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in BIOATLA INC (BCAB).
This page ranks the largest institutional BCAB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
33
Total Reported Value
$2.27M
Largest Holder
Acorn Capital Advisors, Llc
Largest Position
$865,015
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
46
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Acorn Capital Advisors, Llc | 0.25% | 5,406,345 | $865,015 | $19,192,525 | +$18,327,510 | +2118.75% | |
| Millennium Management Llc | 0.00% | 2,756,674 | $443,825 | $9,786,193 | +$9,342,368 | +2104.97% | |
| Vanguard Capital Management Llc | 0.00% | 1,649,252 | $265,530 | $5,854,845 | +$5,589,315 | +2104.97% | |
| Geode Capital Management, Llc | 0.00% | 689,182 | $110,976 | $2,446,596 | +$2,335,620 | +2104.62% | |
| Deutsche Bank Ag\ | 0.00% | 525,352 | $84,056 | $1,865,000 | +$1,780,944 | +2118.76% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 510,514 | $82,193 | $1,812,325 | +$1,730,132 | +2104.96% |
| Blackrock, Inc. | 0.00% | 480,931 | $77,430 | $1,707,305 | +$1,629,875 | +2104.97% | |
| Citadel Advisors Llc | 0.00% | 435,675 | $70,144 | $1,546,646 | +$1,476,502 | +2104.96% | |
| Ubs Group Ag | 0.00% | 375,569 | $60,466 | $1,333,270 | +$1,272,804 | +2104.99% | |
| Vanguard Fiduciary Trust Co | 0.00% | 273,427 | $44,022 | $970,666 | +$926,644 | +2104.96% | |
| Adar1 Capital Management, Llc | 0.00% | 228,107 | $36,725 | $809,780 | +$773,055 | +2104.98% | |
| State Street Corp | 0.00% | 151,377 | $24,372 | $537,388 | +$513,016 | +2104.94% | |
| Northern Trust Corp | 0.00% | 103,494 | $16,663 | $367,404 | +$350,741 | +2104.91% | |
| Simplex Trading, Llc | 0.00% | 73,901 | $11,898 | $262,349 | +$250,451 | +2104.98% | |
| Stonepine Capital Management, Llc | 0.01% | 65,387 | $10,527 | $232,124 | +$221,597 | +2105.03% | |
| Xtx Topco Ltd | 0.00% | 56,614 | $9,115 | $200,980 | +$191,865 | +2104.93% | |
| Morgan Stanley | 0.00% | 55,426 | $8,923 | $196,762 | +$187,839 | +2105.11% | |
| Mai Capital Management | 0.00% | 51,504 | $8,293 | $182,839 | +$174,546 | +2104.74% | |
| Kestra Advisory Services, Llc | 0.00% | 44,250 | $7,124 | $157,088 | +$149,964 | +2105.05% | |
| Susquehanna International Group, Llp | 0.00% | 39,056 | $6,288 | $138,649 | +$132,361 | +2104.97% | |
| Stonex Group Inc. | 0.00% | 29,466 | $4,744 | $104,604 | +$99,860 | +2104.98% | |
| Commonwealth Equity Services, Llc | 0.00% | 25,300 | $4,070 | $89,815 | +$85,745 | +2106.76% | |
| Jane Street Group, Llc | 0.00% | 23,142 | $3,726 | $82,154 | +$78,428 | +2104.89% | |
| Magnus Financial Group Llc | 0.00% | 20,000 | $3,220 | $71,000 | +$67,780 | +2104.97% | |
| Tower Research Capital Llc (Trc) | 0.00% | 16,996 | $2,736 | $60,336 | +$57,600 | +2105.26% | |
| Vanguard Global Advisers, Llc | 0.00% | 16,635 | $2,678 | $59,054 | +$56,376 | +2105.16% | |
| Mariner, Llc | 0.00% | 16,000 | $2,576 | $56,800 | +$54,224 | +2104.97% | |
| Torrey Growth & Income Advisors | 0.00% | 15,687 | $2,362 | $55,689 | +$53,327 | +2257.70% | |
| Twin Lakes Capital Management, Llc | 0.00% | 7,200 | $1,159 | $25,560 | +$24,401 | +2105.35% | |
| Jones Financial Companies Lllp | 0.00% | 2,000 | $306 | $7,100 | +$6,794 | +2220.26% | |
| Acadian Asset Management Llc | 0.00% | 1,233,919 | $198 | $4,380,412 | +$4,380,214 | +2212229.52% | |
| Osaic Holdings, Inc. | 0.00% | 500 | $80 | $1,775 | +$1,695 | +2118.75% | |
| Bnp Paribas Financial Markets | 0.00% | 472 | $76 | $1,676 | +$1,600 | +2104.74% |
Frequently asked questions about BCAB
Who owns the most BCAB stock?
The largest holders of BCAB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BIOATLA INC (BCAB).
Is BCAB widely held by superinvestors?
Many widely followed stocks like BCAB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly BCAB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.