ORKA Oruka Therapeutics, Inc.
Executive Summary
Five mega-passive institutional investors (State Street, Fidelity, T. Rowe Price, Schwab, BofA) increased their ORKA holdings by a net $90.1M in Q3 2025, while only Morgan Stanley trimmed a small position. The buying is dominated by passive/index fund managers, suggesting index rebalancing or passive inflows rather than an active investment thesis. The cluster is directionally bullish but lacks conviction from active managers.
Key Financial Metrics
Institutional Positions
Net institutional flow: $90.1M
▲ Buyers (5)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| State Street | ADD | +74.9% | $12.5M | $8.4M |
| Fidelity | ADD | +29.2% | $139.6M | $76.6M |
| T. Rowe Price | ADD | +52.6% | $12.0K | $7.0K |
| Schwab | DOUBLED | +194% | $4.7M | $3.8M |
| BofA | DOUBLED | +319.1% | $1.5M | $1.3M |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Morgan Stanley | TRIM | -35.3% | $2.3M | $257.0K |
Actionable Insight
The cluster is dominated by passive rebalancing, not active conviction. Monitor next 13F filing for active fund entries or exits. The 95% analyst bullish consensus and $3.9B market cap suggest the stock is well-covered but this filing provides no new catalyst signal.
Key Facts
- 5 buyers added $90.1M net; 1 seller trimmed $257K
- All 5 buyers are mega-passive managers (State Street, Fidelity, T. Rowe Price, Schwab, BofA)
- Fidelity alone added $76.6M, representing 85% of total buying
- Morgan Stanley trimmed 35.3% of its position but its value rose $257K due to stock appreciation
- No active hedge funds, activists, or family offices participated in the cluster
Financial Impact
Net institutional buying of $90.1M, with Fidelity contributing $76.6M of that total. Total buyer holdings now $158.4M.
Risk Factors
- Passive buying may reverse if ORKA is removed from an index or if passive flows rotate out of small/mid-cap pharma
- No active manager participation means no informed catalyst thesis to follow
- Historical calibration shows score-6/7/8 reports on ORKA have negative net alpha at T+20
Market Snapshot
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-ORKA-2025-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
2d ago
|
Institutional Cluster
| $63.94 awaiting T+1 | awaiting T+1 | — | — |
|
Jun 1, 2026
11d ago
|
8-K
| $55.23 $57.20 | ▲ +3.57% | ▲ +4.26% | — |
|
May 22, 2026
21d ago
|
Insider Cluster
| $59.06 $57.99 | ▼ −1.81% | ▼ −1.82% | — |
|
May 18, 2026
25d ago
|
Insider Cluster
| $57.50 $60.67 | ▲ +5.51% | ▲ +4.47% | — |
|
Apr 28, 2026
6w ago
|
Press Release
| $68.10 $68.10 | · 0.00% | ▲ +1.02% | — |
|
Apr 27, 2026
6w ago
|
424B5
| $73.99 $69.49 | ▲ +6.08% | ▲ +6.07% | — |
|
Apr 27, 2026
6w ago
|
Press Release
| $73.99 $69.49 | ▲ +6.08% | ▲ +6.07% | — |
|
Apr 27, 2026
6w ago
|
8-K
| $76.39 $73.99 | ▼ −3.14% | ▼ −2.66% | — |
|
Apr 17, 2026
8w ago
|
DEFA14A
| $68.87 $69.00 | ▲ +0.19% | ▲ +0.84% | — |
|
Apr 15, 2026
8w ago
|
144
| $67.07 $68.92 | ▲ +2.76% | ▲ +1.54% | — |
US Market Status
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