Companies / Parabilis Medicines, Inc.

Parabilis Medicines, Inc.

Nasdaq: PBLSCIK 1657677CAMBRIDGE, MA

Ownership

121.9M shares outstanding
2.3%Insiders
Ownership
Insiders2.29%2,798,380
10%+ / strategic1.54%1,880,704
Institutions7.50%9,144,845
Public float88.66%108,114,723

% of common shares outstanding (single-class filing figure). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 14

View all โ†’
Insider% of sharesShares
RA Capital Management, L.P.Director ยท 10% owner
2.17%2,648,278
Deerfield Mgmt, L.P.10% owner
1.54%1,880,704
Borisy AlexisDirector
0.09%105,414
Sebulsky AlanDirector
0.02%30,000
Fitzgerald Edward MDirector
0.01%14,688
Deerfield Healthcare Innovations Fund, L.P.10% owner
โ€”โ€”
Deerfield Management Company, L.P.10% owner
โ€”โ€”
Deerfield Mgmt HIF, L.P.10% owner
โ€”โ€”
Deerfield Mgmt III, L.P.10% owner
โ€”โ€”
Deerfield Private Design Fund III, L.P.10% owner
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Institutional holders 6

View all โ†’
HolderValue% of shares
Alphabet Inc.$134.65M4.03%
Regeneron Pharmaceuticals, Inc.$114.04M3.42%
WINTON GROUP Ltd$955.2K0.03%
Mitsubishi UFJ Asset Management Co., Ltd.$525.5K0.02%
Persistent Asset Partners Ltd$113.0K<0.01%
Bell Investment Advisors, Inc$12.3K<0.01%
InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ฮ”Position afterImpact
Jun 11, 2026RA Capital Management, L.P.
Director
BuyVoting Common Stock$394.57M+19.7M
+300.89%
26,285,093
21.56% of shares
high
Jun 11, 2026RA Capital Management, L.P.
Director
BuyVoting Common Stock$29.21M+1.5M
+122.94%
2,648,278
2.17% of shares
high
Jun 11, 2026Sebulsky Alan
Director
BuyCommon Stock$250.0K+13K
12,500
0.01% of shares
medium
Jun 12, 2026Sebulsky Alan
Director
BuyCommon Stock$233.4K+8K
+67.48%
20,935
0.02% of shares
medium
Jun 15, 2026Sebulsky Alan
Director
BuyCommon Stock$130.0K+5K
+23.88%
25,935
0.02% of shares
medium
Jun 15, 2026Sebulsky Alan
Director
BuyCommon Stock$110.1K+4K
+15.67%
30,000
0.02% of shares
medium
Jun 11, 2026Borisy Alexis
Director
OtherSeries F Preferred Stockโ€”+162K
0
0.00% of shares
low
Jun 11, 2026Borisy Alexis
Director
OtherCommon Stockโ€”+105K
105,414
0.09% of shares
low

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
PBLSCommon StockEquity698955101BBG00KXR8FS7