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OBIO · Orchestra BioMed Holdings, Inc. · Holdings

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$5.92 +0.27 (+4.78%)
Market Cap
$339.59M
Shares
60.11M
Volume · Oct 20 986.91K Avg daily vol (3M) 316.58K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 77
Total Value: $120,032,684
Total Shares: 27,717,106

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 77 13F filers
Top Holder
34.5%
Sep 2023 → Jun 2026 · range 34.5% – 46.8%
of institutional value
Top 5
72.6%
Sep 2023 → Jun 2026 · range 72.6% – 87.7%
of institutional value
Top 10
85.1%
Sep 2023 → Jun 2026 · range 85.1% – 95.9%
of institutional value
HHI
1,711
Sep 2023 → Jun 2026 · range 1,711 – 2,938
Moderately concentrated

Who Holds OBIO

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 77 filers, like-for-like change +19.9%; actively managed books +4.7%; index-like books +91.9%.

Holder type Share Filers Change
Registered adviser 81.2% 33 +9.3%
Exempt adviser 0.2% 1 -87.0%
Adviser 0.1% 1 new
Bank 5.0% 10 +188.7%
Benefit plan 0.0% 1 -96.6%
Non-US 0.2% 4 +440.6%
Holding company 9.8% 4 +221.9%
Insurer 0.0% 0 —
Unknown 3.5% 23 +16.0%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

77 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
0
0.000% of filers hold it in their top 10
Mar 31, 2026: 0
Holders above 5%
0
median weight 0.000%
Mar 31, 2026: 0
Crowding
30.7%
of shares outstanding, 82nd percentile
Mar 31, 2026: 30.6%
Private-fund advisers
30.5%
of shares outstanding
Institutional ownership
46.2%
50.7% of the estimated free float
Top 10 holders
85.3%
of 13F shares, Herfindahl 0.172
Active holders
+4.7%
like-for-like share change of active filers
5% stakes on record
4
1 13D, 3 13G (0 institutional, 3 passive, 0 exempt)
How long holders have held it value-weighted 10.2 quarters
Under 1 year 20.9% 1 to 3 years 16.4% 3 years or more 62.7% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$7.02
estimated per share
Mar 31, 2026: $7.66
Quarter-end price
$4.31
implied by 13F values
Estimated gain or loss
-38.6%
price against the estimated cost
Estimated at a loss
77.4%
of costed 13F value

Estimated cost covers 90.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies OBIO's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 SABS SAB Biotherapeutics, Inc. 4
2 LONA LeonaBio, Inc. 3
3 AQST Aquestive Therapeutics, Inc. 4
4 CGEM Cullinan Therapeutics, Inc. 4
5 IMVT Immunovant, Inc. 4
6 QTTB Q32 Bio Inc. 3
7 ARTV Artiva Biotherapeutics, Inc. 3
8 IMTX Immatics N.V. 3
9 CMPS COMPASS Pathways plc 5
10 ANL Adlai Nortye Group Ltd. 3

Shareholder Targets

13F filers that own its peers but not OBIO, quarter ended Jun 30, 2026

Found through its holder-overlap peers: SABS, LONA, AQST, CGEM, IMVT, QTTB, ARTV, IMTX, CMPS, ANL, MIST, PHAT, ENGN, SLDB, PTGX, TVTX, CLDX, MAZE, PALI, IDYA. 792 filers in all.

# Filer In peers
1 Jupiter Topco LLC Unknown, Diversified active $1,391,292,018 10 held
2 FARALLON CAPITAL MANAGEMENT LLC Registered adviser, Diversified active $1,034,972,716 3 held
3 WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active $899,724,410 13 held
4 Deep Track Capital, LP Adviser, Diversified active $788,360,351 5 held
5 BAKER BROS. ADVISORS LP Registered adviser, Concentrated $536,469,562 4 held
6 T. Rowe Price Investment Management, Inc. Adviser, Diversified active $422,898,272 4 held
7 Kynam Capital Management, LP Registered adviser, Concentrated $369,185,838 4 held
8 Woodline Partners LP Registered adviser, Systematic-like $368,627,860 14 held
9 RA CAPITAL MANAGEMENT, L.P. Registered adviser, Concentrated $356,181,379 5 held
10 ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active $321,532,987 10 held

Fund Ownership of OBIO by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 7.05% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 1.17% 703,523
Index ETFs 5.88% 3,534,531
Active ETFs 0.37% 219,387
Active funds 0.84% 502,060
Unclassified 0.01% 3,182
All registered funds 8.26% 4,962,683
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1814114 CUSIP 68572M106 13F (30d) 6 filings 6 filers Visit website Investor relations