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ORKA · Oruka Therapeutics, Inc. · Shareholders & Ownership

Track ORKA — free
$75.48 +1.00 (+1.34%)
Market Cap
$4.93B
Shares
66.21M
Volume · Oct 20 14.96K Avg daily vol (3M) 882.98K

Every disclosed holder of ORKA in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ORKA

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 74,133,140 111.97%
Insiders (Forms 3, 4, 5) 0 0.00%
13D/G-only blocks 4,556,952 6.88%
Remaining 12,480,393 -18.85%
Registered funds (N-PORT, not summed) 24,429,772 36.90%

Shares outstanding: 66,209,699, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ORKA

# Holder Shares
1
Fairmount Funds Management LLC
13D CIK 1802528 · Registered investment adviser · Jul 1, 2026
not summed
14,553,895
1.1
Fairmount Funds Management LLC
13F CIK 1802528 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,705,262
1.2
Fairmount Funds Management LLC
Insider CIK 1802528 · Jul 1, 2026
Director, issuer-wide, not summed
2,573,308
2
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
9,057,645
2.1
Fidelity Growth Company Fund
Fund S000007119 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
1,221,046
2.2
Select Health Care Portfolio
Fund S000007466 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
833,100
2.3
Fidelity Advisor Biotechnology Fund
Fund S000005321 · Registered fund · Jul 31, 2026
Fidelity Advisor Series VII, not summed
737,386
2.4
Fidelity Small Cap Growth Fund
Fund S000007193 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
685,718
2.5
Select Biotechnology Portfolio
Fund S000007486 · Registered fund · May 31, 2026
Fidelity Select Portfolios, not summed
562,683
3
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,990,181
3.1
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,300,202
3.2
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
449,195
3.3
iShares Biotechnology ETF
Fund S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
359,218
3.4
BlackRock Health Sciences Opportunities Portfolio
Fund S000001877 · Registered fund · May 29, 2026
BlackRock Funds, not summed
264,813
3.5
Master Small Cap Index Series
Fund S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
92,609
4
Venrock Healthcare Capital Partners III, L.P.
13G CIK 1738048 · Unknown · Jun 30, 2026
Rule 13d-1(c), passive investor
4,556,952
4.1
Venrock Healthcare Capital Partners III, L.P.
Insider CIK 1738048 · Feb 14, 2025
10% Owner, issuer-wide, not summed
4,148,428
5
Venrock Adviser, LLC
13F CIK 1615982 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,148,428
6
Capital World Investors
13F CIK 1422849 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,401,639
6.1
Capital World Investors
13G CIK 1422849 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,401,639
7
RTW INVESTMENTS, LP
13F CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,139,030
7.1
RTW INVESTMENTS, LP
13G CIK 1493215 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,139,030
8
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,673,090
8.1
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
1,555,002
8.2
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
16,600
8.3
State Street Institutional Small-Cap Equity Fund
Fund S000001631 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL FUNDS, not summed
4,960
8.4
State Street Total Return V.I.S. Fund
Fund S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
1,235
8.5
State Street Balanced Index Fund
Fund S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
276
9
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,360,971
10
Paradigm Biocapital Advisors LP
13F CIK 1855655 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,144,526
11
Deep Track Capital, LP
13F CIK 1856083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,926,000
12
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,724,692
13
Bellevue Group AG
13F CIK 1674546 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
1,657,190
14
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,621,451
14.1
Franklin Biotechnology Discovery Fund
Fund S000006882 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
296,262
14.2
Putnam Small Cap Growth Fund
Fund S000000777 · Registered fund · Jun 30, 2026
Putnam Funds Trust, not summed
255,628
14.3
Franklin Small Cap Growth Fund
Fund S000006889 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
208,013
14.4
Franklin Alternative Strategies Fund
Fund S000042023 · Registered fund · May 29, 2026
Franklin Alternative Strategies Funds, not summed
9,388
14.5
Putnam VT Small Cap Growth Fund
Fund S000003883 · Registered fund · Jun 30, 2026
Putnam Variable Trust, not summed
3,920
15
Remedium Capital Partners, LLC
13F CIK 2104501 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,565,661
16
RA CAPITAL MANAGEMENT, L.P.
13F CIK 1346824 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,554,597
17
SMALLCAP World Fund Inc
Fund S000009599 · Registered fund · Jun 30, 2026
SMALLCAP World Fund Inc, not summed
1,527,592
18
VIKING GLOBAL INVESTORS LP
13F CIK 1103804 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,503,478
18.1
VIKING GLOBAL INVESTORS LP
13G CIK 1103804 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(c), passive investor, not summed
1,503,478
19
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,429,954
20
Jupiter Topco LLC
13F CIK 2146052 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,375,844
20.1
Janus Henderson Small/Mid Cap Growth Alpha ETF
Fund S000052564 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
82,097
20.2
Janus Henderson Small Cap Growth Alpha ETF
Fund S000052563 · Registered fund · Jul 31, 2026
Janus Detroit Street Trust, not summed
28,596
21
PERCEPTIVE ADVISORS LLC
13F CIK 1224962 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,345,063
22
Polar Capital Holdings Plc
13F CIK 1837309 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,228,609
23
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,119,011
24
T. Rowe Price Investment Management, Inc.
13F CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,103,743
25
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,079,015
26
Klein Lawrence Otto
Insider CIK 1762583 · Oct 1, 2026
Director, issuer-wide, not summed
923,128
27
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
838,603
27.1
T. Rowe Price Health Sciences Fund, Inc.
Fund S000002088 · Registered fund · Jun 30, 2026
T. ROWE PRICE HEALTH SCIENCES FUND, INC., not summed
451,118
27.2
T. Rowe Price Small-Cap Stock Fund, Inc.
Fund S000002120 · Registered fund · Jun 30, 2026
T. ROWE PRICE SMALL-CAP STOCK FUND, INC., not summed
381,128
27.3
T. Rowe Price Institutional Small-Cap Stock Fund
Fund S000002094 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
205,065
27.4
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
150,800
27.5
T. Rowe Price Health Sciences Portfolio
Fund S000002083 · Registered fund · Jun 30, 2026
T. ROWE PRICE EQUITY SERIES, INC., not summed
28,926
28
Avidity Partners Management LP
13F CIK 1791827 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
760,424
29
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
13F CIK 1638555 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
658,301
30
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
655,027
31
Aberdeen Group plc
13F CIK 1716774 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
646,943
32
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
639,363
33
WESTFIELD CAPITAL MANAGEMENT CO LP
13F CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
631,433
34
Pictet Asset Management Holding SA
13F CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
619,076
35
Affinity Asset Advisors, LLC
13F CIK 1773195 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
590,000
36
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
582,409
37
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
580,953
38
Cormorant Asset Management, LP
13F CIK 1583977 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
533,340
39
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
433,405
40
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
428,891
41
VOYA INVESTMENT MANAGEMENT LLC
13F CIK 1068837 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
401,149
42
LORD, ABBETT & CO. LLC
13F CIK 728100 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
390,064
42.1
LORD ABBETT DEVELOPING GROWTH FUND INC
Fund S000006834 · Registered fund · Jul 31, 2026
LORD ABBETT DEVELOPING GROWTH FUND, INC., not summed
225,118
42.2
Lord Abbett Micro-Cap Growth Fund
Fund S000007142 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
25,176
42.3
Developing Growth Portfolio
Fund S000028719 · Registered fund · Jun 30, 2026
LORD ABBETT SERIES FUND INC, not summed
6,624
42.4
Lord Abbett Health Care Fund
Fund S000064462 · Registered fund · Jul 31, 2026
LORD ABBETT SECURITIES TRUST, not summed
828
43
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
365,630
44
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
13F CIK 912938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
364,102
44.1
MFS New Discovery Value Fund
Fund S000032712 · Registered fund · May 31, 2026
MFS SERIES TRUST XIII, not summed
122,006
44.2
MFS New Discovery Fund
Fund S000000765 · Registered fund · May 31, 2026
MFS SERIES TRUST I, not summed
121,469
44.3
MFS New Discovery Series
Fund S000002680 · Registered fund · Jun 30, 2026
MFS VARIABLE INSURANCE TRUST, not summed
44,125
44.4
MFS Blended Research Small Cap Equity Fund
Fund S000050659 · Registered fund · May 31, 2026
MFS SERIES TRUST X, not summed
11,938
44.5
MFS Blended Research Small Cap Equity Portfolio
Fund S000008071 · Registered fund · Jun 30, 2026
MFS VARIABLE INSURANCE TRUST III, not summed
3,008
45
Synergy Asset Management, LLC
13F CIK 1699080 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
356,301
46
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
355,003
47
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
352,824
48
SILVERARC CAPITAL MANAGEMENT, LLC
13F CIK 1816307 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
352,802
49
Candriam S.C.A.
13F CIK 1537014 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
352,716
50
Harbor Small Cap Growth Fund
Fund S000000686 · Registered fund · Jul 31, 2026
HARBOR FUNDS, not summed
316,518

62 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 378 holders

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Key facts CIK 907654 CUSIP 687604108 13F (30d) 12 filings 12 filers Visit website Investor relations