Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SEER held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SOFTBANK GROUP CORP | 5.1M | $8.6M | 0.0% | 9.340% | 0.08% |
| 2 | Siren, L.L.C. | 2.5M | $4.1M | -38.5% | 4.472% | 0.11% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $3.3M | — | 3.563% | 0.00% |
| 4 | BlackRock, Inc. | 1.8M | $3.1M | -0.3% | 3.313% | 0.00% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 977K | $1.6M | -7.1% | 1.776% | 0.00% |
| 6 | AJU IB Investment Co., Ltd. | 816K | $1.5M | 0.0% | 1.485% | 5.05% |
| 7 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 825K | $1.4M | 0.0% | 1.500% | 1.30% |
| 8 | TWO SIGMA INVESTMENTS, LP | 512K | $859K | +102.5% | 0.931% | 0.00% |
| 9 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 459K | $772K | -24.6% | 0.836% | 0.02% |
| 10 | Peapod Lane Capital LLC | 439K | $736K | -0.0% | 0.798% | 0.60% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 423K | $711K | -10.6% | 0.769% | 0.00% |
| 12 | 1888 Investments, LLC | 359K | $603K | 0.0% | 0.653% | 0.96% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 222K | $373K | -5.8% | 0.404% | 0.00% |
| 14 | VANGUARD FIDUCIARY TRUST CO | 216K | $362K | — | 0.392% | 0.00% |
| 15 | GOLDMAN SACHS GROUP INC | 194K | $326K | -8.0% | 0.353% | 0.00% |
| 16 | Rangeley Capital, LLC | 184K | $310K | +821.5% | 0.335% | 0.33% |
| 17 | T3 Companies, LLC | 171K | $287K | +29.5% | 0.311% | 0.39% |
| 18 | MORGAN STANLEY | 161K | $270K | -6.1% | 0.293% | 0.00% |
| 19 | STATE STREET CORP | 160K | $269K | +5.2% | 0.291% | 0.00% |
| 20 | JACOBS LEVY EQUITY MANAGEMENT, INC | 143K | $241K | +267.1% | 0.261% | 0.00% |
| 21 | Shay Capital LLC | 135K | $228K | -9.9% | 0.246% | 0.02% |
| 22 | NORTHERN TRUST CORP | 135K | $226K | +24.5% | 0.245% | 0.00% |
| 23 | D. E. Shaw & Co., Inc. | 125K | $210K | -69.4% | 0.228% | 0.00% |
| 24 | HSBC HOLDINGS PLC | 114K | $193K | — | 0.208% | 0.00% |
| 25 | EDGEWOOD MANAGEMENT LLC | 100K | $168K | 0.0% | 0.182% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in SEER — a direct measure of their conviction.
Filings activity in SEER during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 56 | 9.7% | 33.78% | 8.73 pp | $32M | 21% |
| Q4 2025 | 62 | +6.9% | 42.51% | 11.44 pp | $40M | 21% |
| Q3 2025 | 58 | 16% | 53.95% | 2.76 pp | $51M | 4.9% |
| Q2 2025 | 69 | +3.0% | 56.71% | +11.62 pp | $54M | +26% |
| Q1 2025 | 67 | 2.9% | 45.09% | 18.83 pp | $43M | 29% |
| Q4 2024 | 69 | 1.4% | 63.92% | +8.62 pp | $60M | +16% |
| Q3 2024 | 70 | 21% | 55.30% | 1.41 pp | $52M | 2.5% |
| Q2 2024 | 89 | — | 56.71% | — | $54M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SEER stock.
Based on Q1 2026 13F filings, institutional ownership of Seer, Inc. stands at 33.8%, held across 56 reporting institutions.
SOFTBANK GROUP CORP is the largest reported institutional holder of SEER, with approximately 5,135,383 shares worth $0.01B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of SEER, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for SEER is 38 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
10 institutions opened new positions in SEER during Q1 2026, while 16 fully exited. 8 added to existing positions and 38 trimmed.
SEER institutional ownership fell by 8.73 percentage points quarter-over-quarter, with a net change of -6 holders.
The top 10 institutions account for 81.5% of all reported 13F value in SEER, and the top 25 account for 96.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Seer, Inc. (SEER) Institutional Ownership