Seer, Inc.
Seer, Inc. (SEER) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SEER · as of Sep 30, 2025
Ownership Breakdown
59
Institutional Holders
▼ 9 vs Q2
$56.34M
Total Inst. Value
▼ $2.70M vs Q2
54.98M
Shares Outstanding
freeFloat 73.63%
25.95M
13F Shares Held
▼ 1.67M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SEER largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
SOFTBANK GROUP CORP. laboratory analytical instruments | 5.14M | 8.84% | 8.84% | $11.14B | Nov 14, 2025 | — held |
SIREN, L.L.C. laboratory analytical instruments | 4.00M | 6.89% | 6.89% | $8.68B | Nov 13, 2025 | — held |
VANGUARD GROUP INC laboratory analytical instruments | 2.22M | 3.82% | 3.82% | $4.82B | Nov 7, 2025 | ▲ 18.8K |
ACADIAN ASSET MANAGEMENT LLC laboratory analytical instruments | 2.14M | 3.69% | 3.69% | $4.65B | Nov 13, 2025 | ▼ 5.8K |
BLACKROCK, INC. laboratory analytical instruments | 1.85M | 3.19% | 3.19% | $4.02B | Nov 12, 2025 | ▼ 20.0K |
TANG CAPITAL MANAGEMENT LLC laboratory analytical instruments | 1.34M | 2.31% | 2.31% | $2.92B | Nov 14, 2025 | — held |
RENAISSANCE TECHNOLOGIES LLC laboratory analytical instruments | 1.11M | 1.91% | 1.91% | $2.41B | Nov 13, 2025 | ▼ 7.4K |
AJU IB INVESTMENT CO., LTD. laboratory analytical instruments | 816.4K | 1.41% | 1.41% | $1.80B | Nov 6, 2025 | — held |
BRIDGEWAY CAPITAL MANAGEMENT, LLC laboratory analytical instruments | 737.4K | 1.27% | 1.27% | $1.60B | Nov 14, 2025 | ▼ 100.0K |
FMR LLC laboratory analytical instruments | 704.2K | 1.21% | 1.21% | $1.53B | Nov 13, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
13
Increased
+225.4K shares0
New Positions
first time holders24
Decreased
−1.53M shares0
Sold Out
fully exitedNet shares change (top 50)
1.31M
+225.4K / −1.53M
Net new holders
-11
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SEER insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
1
Sell transactions
2.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Horn David R. PRESIDENT & CFO | May 20, 2026 | Sale | 7,303 | $1.69 | $12.4K | 494.0K | Form 4 ↗ |
Bazarko Anthony R. Chief Commercial Officer | May 8, 2026 | Award | 225,000 | $1.87 | $420.8K | 225.0K | Form 4 ↗ |
Bazarko Anthony R. Chief Commercial Officer | May 8, 2026 | Award | 75,000 | — | — | 75.0K | Form 4 ↗ |
Horn David R. PRESIDENT & CFO | Feb 18, 2026 | Sale | 7,743 | $1.99 | $15.4K | 501.3K | Form 4 ↗ |
Farokhzad Omid CEO AND CHAIR | Feb 18, 2026 | Sale | 24,385 | $1.99 | $48.6K | 3.35M | Form 4 ↗ |
Horn David R. PRESIDENT & CFO | Feb 3, 2026 | Award | 79,000 | — | — | 509.0K | Form 4 ↗ |
Horn David R. PRESIDENT & CFO | Feb 3, 2026 | Award | 119,000 | $1.79 | $213.0K | 119.0K | Form 4 ↗ |
Farokhzad Omid CEO AND CHAIR | Feb 3, 2026 | Award | 697,162 | — | — | 3.37M | Form 4 ↗ |
Farokhzad Omid CEO AND CHAIR | Feb 3, 2026 | Award | 512,000 | $1.79 | $916.5K | 512.0K | Form 4 ↗ |
MCGUIRE TERRANCE director | Dec 9, 2025 | C-Conversion | 4,088 | — | — | 215.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Seer, Inc. (SEER) is primarily owned by institutional investors, who hold approximately 47.2% of total shares outstanding. Company insiders own approximately 26.37%, while retail and public investors account for the remaining 26.45%.
The largest institutional shareholder of Seer, Inc. is SOFTBANK GROUP CORP., holding approximately 5.14 million shares — equal to 8.84% of outstanding shares — as of September 30, 2025.
A total of 59 institutional investors currently hold SEER stock, with a combined institutional value of approximately $56,336,796 as of the most recent 13F filing period.
Frequently asked questions
SEER ownershipSeer, Inc. (SEER) is primarily owned by institutional investors, who hold approximately 47.2% of shares. The largest shareholder is SOFTBANK GROUP CORP. with a 8.84% stake. Company insiders hold 26.37%. Data sourced from SEC Form 13F as of September 30, 2025.