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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — AKTS
Institutional Holdings
Insider Transactions
US Institutional Ownership
64.9%
Institution
Shares
Value
Ownership %
Change
Filing Date
MPM BIOIMPACT LLC
4.84M
$86.0M
9.06%
--
2026-03-31
EcoR1 Capital, LLC
4.82M
$86.0M
9.03%
--
2026-03-31
Blue Owl Capital Holdings LP
3.16M
$56.0M
5.92%
--
2026-03-31
WELLINGTON MANAGEMENT GROUP LLP
2.32M
$41.0M
4.34%
--
2026-03-31
T. Rowe Price Investment Management, Inc.
2.12M
$37.0M
3.98%
--
2026-03-31
BlackRock, Inc.
2.11M
$37.0M
3.96%
--
2026-03-31
RTW INVESTMENTS, LP
1.59M
$28.0M
2.98%
--
2026-03-31
PRICE T ROWE ASSOCIATES INC /MD/
1.56M
$27.0M
2.93%
--
2026-03-31
RA CAPITAL MANAGEMENT, L.P.
1.50M
$26.0M
2.81%
--
2026-03-31
JANUS HENDERSON GROUP PLC
1.45M
$26.0M
2.72%
--
2026-03-31
BAKER BROS. ADVISORS LP
996.4K
$17.0M
1.87%
--
2026-03-31
Octagon Capital Advisors LP
960.8K
$17.0M
1.80%
--
2026-03-31
Merck & Co., Inc.
952.8K
$17.0M
1.78%
--
2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC
833.9K
$14.0M
1.56%
--
2026-03-31
EVENTIDE ASSET MANAGEMENT, LLC
507.0K
$9.0M
0.95%
--
2026-03-31
GEODE CAPITAL MANAGEMENT, LLC
491.9K
$8.0M
0.92%
--
2026-03-31
Avidity Partners Management LP
468.6K
$8.0M
0.88%
--
2026-03-31
STATE STREET CORP
428.3K
$7.0M
0.80%
--
2026-03-31
AH CAPITAL MANAGEMENT, L.L.C.
415.0K
$7.0M
0.78%
--
2026-03-31
FMR LLC
386.4K
$6.0M
0.72%
--
2026-03-31
UBS Group AG
353.3K
$6.0M
0.66%
--
2026-03-31
ArrowMark Colorado Holdings LLC
329.5K
$5.0M
0.62%
--
2026-03-31
Alyeska Investment Group, L.P.
290.0K
$5.0M
0.54%
--
2026-03-31
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
162.0K
$2.0M
0.30%
--
2026-03-31
Driehaus Capital Management LLC
150.0K
$2.0M
0.28%
--
2026-03-31
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