Ranked by reported Q2 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 | $8.5M | 0.0% | 9.340% | 0.05% |
| 2 | Siren, L.L.C. | 2.5M | $4.1M | 0.0% | 4.472% | 0.08% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | $3.0M | -6.5% | 3.330% | 0.00% |
| 4 | BlackRock, Inc. | 1.4M | $2.4M | -21.6% | 2.598% | 0.00% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 986K | $1.6M | +0.9% | 1.792% | 0.00% |
| 6 | NANO CAP NEW MILLENNIUM GROWTH FUND L P | 825K | $1.4M | 0.0% | 1.500% | 1.05% |
| 7 | CITADEL ADVISORS LLC | 519K | $862K | — | 0.945% | 0.00% |
| 8 | TWO SIGMA INVESTMENTS, LP | 492K | $817K | -3.8% | 0.895% | 0.00% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 460K | $765K | +8.8% | 0.837% | 0.00% |
| 10 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 459K | $763K | 0.0% | 0.836% | 0.01% |
| 11 | Peapod Lane Capital LLC | 445K | $739K | +1.6% | 0.810% | 0.50% |
| 12 | 1888 Investments, LLC | 359K | $596K | 0.0% | 0.653% | 1.06% |
| 13 | GOLDMAN SACHS GROUP INC | 247K | $409K | +27.0% | 0.449% | 0.00% |
| 14 | JACOBS LEVY EQUITY MANAGEMENT, INC | 222K | $369K | +55.2% | 0.404% | 0.00% |
| 15 | Rangeley Capital, LLC | 222K | $369K | +20.4% | 0.404% | 0.34% |
| 16 | VANGUARD FIDUCIARY TRUST CO | 217K | $360K | +0.7% | 0.395% | 0.00% |
| 17 | DIMENSIONAL FUND ADVISORS LP | 213K | $353K | -4.2% | 0.387% | 0.00% |
| 18 | EDGEWOOD MANAGEMENT LLC | 200K | $332K | +100.0% | 0.364% | 0.00% |
| 19 | STATE STREET CORP | 160K | $266K | 0.0% | 0.291% | 0.00% |
| 20 | MORGAN STANLEY | 145K | $241K | -9.6% | 0.265% | 0.00% |
| 21 | Advisory Services Network, LLC | 143K | $237K | +1326.5% | 0.259% | 0.00% |
| 22 | Voss Capital, LP | 137K | $228K | — | 0.250% | 0.01% |
| 23 | HSBC HOLDINGS PLC | 114K | $192K | 0.0% | 0.208% | 0.00% |
| 24 | Shay Capital LLC | 94K | $156K | -30.5% | 0.171% | 0.01% |
| 25 | NORTHERN TRUST CORP | 79K | $131K | -41.4% | 0.144% | 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 Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 59 | +1.7% | 37.31% | 1.67 pp | $30M | 5.5% |
| Q1 2026 | 58 | 6.5% | 38.98% | 4.53 pp | $32M | 20% |
| Q4 2025 | 62 | +6.9% | 43.51% | 3.25 pp | $40M | 21% |
| Q3 2025 | 58 | 16% | 46.76% | 2.55 pp | $51M | 4.9% |
| Q2 2025 | 69 | +3.0% | 49.31% | +2.77 pp | $54M | +26% |
| Q1 2025 | 67 | 2.9% | 46.54% | 1.93 pp | $43M | 29% |
| Q4 2024 | 69 | 1.4% | 48.47% | 0.52 pp | $60M | +16% |
| Q3 2024 | 70 | — | 48.99% | — | $52M | — |
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 Q2 2026 13F filings, institutional ownership of Seer, Inc. stands at 37.3%, held across 59 reporting institutions.
SOFTBANK GROUP CORP. is the largest reported institutional holder of SEER, with approximately 5,135,383 shares worth $0.01B as of Q2 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of SEER, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for SEER is 51 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
8 institutions opened new positions in SEER during Q2 2026, while 8 fully exited. 12 added to existing positions and 37 trimmed.
SEER institutional ownership fell by 1.67 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 79.8% of all reported 13F value in SEER, and the top 25 account for 96.2%.
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