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$BIOA
$5.47 +$0.48 (9.62%) Close

Ownership

13F as of Q2 2026 · 45.9M shares outstanding

Who owns BIOA?

By type of holder
Institutions 82.1% Insiders 2.2% Everyone else 15.7%
Concentration Top 10 holders own 44.1%
a16z Capital Management, L.L.C. 7.0% · Cormorant Asset Management, LP 5.2%
Institutional ownership
82.1%
+7.4 pts vs last qtr
Institutional holders
149
+5 vs last qtr
Net shares bought
+3.4M
by institutions in Q2 2026
New / sold out
28 / 23
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Jupiter Topco LLC NEW +2.1M
  • MPM Bioimpact LLC NEW +1.7M

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Biggest sellers in Q2 2026
  • Janus Henderson Group PLC SOLD OUT −2.1M
  • Balyasny Asset Management L.P. −624.7K

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Who is planning to sell?

Notices of proposed sale, last 12 months
$7.77M
10 notices from 4 people
Shares covered
440.7K
0.96% of the company
Arranged in advance
100%
of the value is under a 10b5-1 plan
Under a 10b5-1 plan No plan
$0$2.4M$4.8MNovDec 2025: $917.9K under a 10b5-1 planDecJan 2026: $4.8M under a 10b5-1 planJanFeb 2026: $139.4K under a 10b5-1 planFebMar 2026: $148.9K under a 10b5-1 planMarApr 2026: $157.1K under a 10b5-1 planAprMayJun 2026: $1.6M under a 10b5-1 planJunJulAugSepOct
Largest proposed sellers
  • Fortney Kristen 10% stockholder 10b5-1 $4.2M
  • Barton Shane Officer 10b5-1 $1.58M

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Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2023–FY2025
+2048.1%
+363.47% a year
Each share's claim on the business
−95.3%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $21.7M
over 3 fiscal years
Diluted shares, split-adjusted
1.6M19.0M36.3M2023: 1.7M shares'232024: 10.7M shares'242025: 35.9M shares'25
Buybacks Stock-based comp
$0$5.8M$11.7M2023 buybacks: $02023 stock comp: $3.0M'232024 buybacks: $02024 stock comp: $7.0M'242025 buybacks: $02025 stock comp: $11.7M'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years0% 3–5 years0% 1–3 years60% Under 1 year40%
Quarterly turnover
20.3%
of institutional shares changed hands
Top 10 managers, median time held
1.5 years

Super Investors

Investment managers reporting BIOA on Form 13F
AC
a16z Capital Management, L.L.C.
Shares
3.2M
% of company
7.04%
Change vs last qtr
Unchanged
Held since
2024
CA
Cormorant Asset Management, LP
Shares
2.4M
% of company
5.21%
Change vs last qtr
−500.0K (−17.3%)
Held since
2024

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Institutional Funds

Mutual funds and ETFs reporting BIOA on Form N-PORT; together they hold 16.1% of the company
VT
Position value
$28M
% of company
2.49%
% of the fund
0.00%
As of
June 30, 2026
IR
iShares Trust
Position value
$22.4M
% of company
1.99%
% of the fund
0.03%
As of
June 30, 2026

23 more funds behind a free account

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
FK
Fortney Kristen
Insider
Shares
976.9K
% of company
2.13%
Change vs last qtr
—
Held since
—
GD
Goldstein Dov A MD
Insider
Shares
36.6K
% of company
0.08%
Change vs last qtr
—
Held since
—

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