SEER INC SEER
COM CL A · Common Stock · CUSIP 81578P106
- SectorTechnology
- IndustryLaboratory Analytical Instruments
- HeadquartersRedwood City, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 55.4m as of 2026-08-05, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.66. Options: 1 managers hold calls ($13.4k notional), 0 hold puts (—).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 97 |
| Q4 2022 | 100 |
| Q1 2023 | 100 |
| Q2 2023 | 87 |
| Q3 2023 | 80 |
| Q4 2023 | 91 |
| Q1 2024 | 89 |
| Q2 2024 | 93 |
| Q3 2024 | 71 |
| Q4 2024 | 72 |
| Q1 2025 | 68 |
| Q2 2025 | 69 |
| Q3 2025 | 59 |
| Q4 2025 | 63 |
| Q1 2026 | 58 |
| Q2 2026 | 59 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 24 | 54 |
| Q4 2024 | 28 | 33 |
| Q1 2025 | 20 | 36 |
| Q2 2025 | 31 | 29 |
| Q3 2025 | 13 | 36 |
| Q4 2025 | 18 | 35 |
| Q1 2026 | 17 | 37 |
| Q2 2026 | 23 | 28 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $2.0k | $0 | 0.00 |
| Q4 2025 | $1.8k | $0 | 0.00 |
| Q1 2026 | $2.7k | $0 | 0.00 |
| Q2 2026 | $13.4k | $0 | 0.00 |
Biggest buyers
| CITADEL ADVISORS LLC | New | +519.3k |
| Voss Capital, LP | New | +137.3k |
| Advisory Services Network, LLC | Added | +132.6k |
| EDGEWOOD MANAGEMENT LLC | Added | +100.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +79.1k |
| Marquette Asset Management, LLC | New | +61.8k |
| JANE STREET GROUP, LLC | New | +59.4k |
| GOLDMAN SACHS GROUP INC | Added | +52.5k |
| Rangeley Capital, LLC | Added | +37.7k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +37.5k |
Biggest sellers
| AJU IB Investment Co., Ltd. | Sold out | -816.4k |
| BlackRock, Inc. | Reduced | -393.2k |
| T3 Companies, LLC | Sold out | -171.0k |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | -127.9k |
| D. E. Shaw & Co., Inc. | Sold out | -125.2k |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | -121.0k |
| NewEdge Advisors, LLC | Sold out | -78.7k |
| NORTHERN TRUST CORP | Reduced | -55.7k |
| MARSHALL WACE, LLP | Sold out | -45.8k |
| Shay Capital LLC | Reduced | -41.3k |
Biggest calls
| GROUP ONE TRADING LLC | New | $13.4k8.1k shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Farokhzad Omid 13G · exempt (held before listing) +4.2 pts · filed 2026-05-15 | 12.0% |
| Schindel Yair Chaim 13G · exempt (held before listing) filed 2025-01-08 | 8.3% |
Fell to 5% or below in the last year: Invus Global Management, LLC (4.4%, 2026-05-04), Radoff Bradley Louis (4.6%, 2026-04-13)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 2 | $26.0k | — |
| Q2 2025 | 0 | — | 3 | $147.0k | $62.9k |
| Q3 2025 | 0 | — | 2 | $83.3k | — |
| Q4 2025 | 0 | — | 2 | $80.1k | — |
| Q1 2026 | 0 | — | 2 | $63.9k | — |
| Q2 2026 | 0 | — | 1 | $12.3k | — |
| Q3 2026 | 0 | — | 2 | $38.1k | $23.2k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-18 | Horn David R. PRESIDENT & CFO | Sold | $14.8k7.3k shares |
| 2026-07-08 | Nishar Dipchand Director | Sold plan | $23.2k10.7k shares |
| 2026-05-20 | Horn David R. PRESIDENT & CFO | Sold | $12.3k7.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| SOFTBANK GROUP CORP. 0.05% of their portfolio | 5.1m $8.5m | Unchanged |
| Siren, L.L.C. 0.08% of their portfolio | 2.5m $4.1m | Unchanged |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 2.0m $3.2m | Reduced -121.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.8m $3.0m | Reduced -127.9k |
| BlackRock, Inc. 0.00% of their portfolio | 1.4m $2.4m | Reduced -393.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 985.5k $1.6m | Added +8.8k |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P 1.05% of their portfolio | 825.0k $1.4m | Unchanged |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 519.3k $862.1k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 492.3k $817.2k | Reduced -19.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 460.4k $764.5k | Added +37.5k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 459.4k $762.7k | Unchanged |
| Peapod Lane Capital LLC 0.50% of their portfolio | 445.4k $739.4k | Added +6.9k |
| 1888 Investments, LLC 1.06% of their portfolio | 359.1k $596.2k | Unchanged |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 246.6k $409.4k | Added +52.5k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 222.3k $369.1k | Added +79.1k |
| Rangeley Capital, LLC 0.34% of their portfolio | 222.0k $368.5k | Added +37.7k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 217.0k $360.2k | Added +1.4k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 212.6k $353.0k | Reduced -9.3k |
| EDGEWOOD MANAGEMENT LLC 0.00% of their portfolio | 200.0k $332.0k | Added +100.0k |
| GSA CAPITAL PARTNERS LLP 0.02% of their portfolio | 184.5k $306.0k | Reduced -10.0k |
| STATE STREET CORP 0.00% of their portfolio | 159.9k $265.5k | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 145.4k $241.4k | Reduced -15.4k |
| Advisory Services Network, LLC 0.00% of their portfolio | 142.6k $236.8k | Added +132.6k |
| Voss Capital, LP 0.01% of their portfolio | 137.3k $227.9k | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 114.3k $191.5k | Unchanged |
| Shay Capital LLC 0.02% of their portfolio | 94.2k $156.4k | Reduced -41.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 78.9k $131.0k | Reduced -55.7k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 73.8k $122.5k | Unchanged |
| Corient Private Wealth LP 0.00% of their portfolio | 73.2k $121.5k | Added +10.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 71.6k $119.0k | Reduced -57 |
| Palumbo Wealth Management LLC 0.02% of their portfolio | 68.5k $113.7k | Added +1.3k |
| Marquette Asset Management, LLC 0.01% of their portfolio | 61.8k $102.6k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 59.4k $98.6k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 57.0k $94.6k | Reduced -79 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 51.9k $87.0k | Added +12.1k |
| XTX Topco Ltd 0.00% of their portfolio | 44.4k $73.7k | Added +31.2k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 33.9k $56.3k | Reduced -10.2k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 26.5k $44.0k | Reduced -1.7k |
| UBS Group AG 0.00% of their portfolio | 26.1k $43.4k | Reduced -22.3k |
| Invesco Ltd. 0.00% of their portfolio | 23.8k $39.6k | Reduced -2.6k |
| HRT FINANCIAL LP 0.00% of their portfolio | 22.7k $37.0k | New |
| Sequoia Financial Advisors, LLC 0.00% of their portfolio | 16.6k $27.6k | Unchanged |
| Bronte Capital Management Pty Ltd. 0.00% of their portfolio | 15.1k $25.1k | New |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 14.1k $23.4k | Reduced -698 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 12.9k $21.4k | Unchanged |
| FNY Investment Advisers, LLC 0.01% of their portfolio | 8.5k $14.0k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 8.1k $13.5k | Reduced -40.1k |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 2.3k $3.9k | Reduced -297 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 1.6k $2.7k | Reduced -447 |
| Atlantic Union Bankshares Corp 0.00% of their portfolio | 1.2k $2.1k | New |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 1.0k $1.7k | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 867 $1.4k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 662 $1.1k | Unchanged |
| FMR LLC 0.00% of their portfolio | 635 $1.1k | Reduced -9 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 631 $1.0k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 380 $630 | Unchanged |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 134 $222 | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 131 $217 | Added +128 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 23 $38 | Unchanged |