Seer, Inc. (SEER) Insider Trading
Over the last 3 months, SEER insiders made 0 open-market buys and 2 sales, a net sale of -$38K (SEC Form 4). Over the last 6 months, 12 institutions increased and 24 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$38.1K
Insider trades by month Buys Sells
Aug
Nov
Feb
May
Jul
Aug
Context3-month price +10.4%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 19, 2026 | Horn David R.officer: PRESIDENT & CFO | Sell | 7,309 | $2.03 |
| Jul 30, 2026 | MCGUIRE TERRANCEdirector | Grant | 16,500 | — |
| Jul 30, 2026 | Gulyani Meetadirector | Grant | 25,000 | $2.14 |
| Jul 30, 2026 | Gulyani Meetadirector | Grant | 16,500 | — |
| Jul 30, 2026 | LANGER ROBERTdirector | Grant | 25,000 | $2.14 |
| Jul 30, 2026 | Ro Isaacdirector | Grant | 12,375 | — |
| Jul 30, 2026 | Ro Isaacdirector | Grant | 18,750 | $2.14 |
| Jul 30, 2026 | Roelofs Nicolas H PHDdirector | Grant | 25,000 | $2.14 |
| Jul 30, 2026 | Roelofs Nicolas H PHDdirector | Grant | 16,500 | — |
| Jul 30, 2026 | MCGUIRE TERRANCEdirector | Grant | 25,000 | $2.14 |
| Jul 30, 2026 | Nishar Dipchanddirector | Grant | 25,000 | $2.14 |
| Jul 30, 2026 | LANGER ROBERTdirector | Grant | 16,500 | — |
| Jul 30, 2026 | Nishar Dipchanddirector | Grant | 16,500 | — |
| Jul 10, 2026 | Nishar Dipchanddirector | Sell | 10,660 | $2.18 |
| May 21, 2026 | Horn David R.officer: PRESIDENT & CFO | Sell | 7,303 | $1.69 |
| May 11, 2026 | Bazarko Anthony R.officer: Chief Commercial Officer | Grant | 75,000 | — |
| May 11, 2026 | Bazarko Anthony R.officer: Chief Commercial Officer | Grant | 225,000 | $1.87 |
| Feb 19, 2026 | Horn David R.officer: PRESIDENT & CFO | Sell | 7,743 | $1.99 |
| Feb 19, 2026 | Farokhzad Omiddirector, officer: CEO AND CHAIR | Sell | 24,385 | $1.99 |
| Feb 5, 2026 | Horn David R.officer: PRESIDENT & CFO | Grant | 79,000 | — |
| Feb 5, 2026 | Horn David R.officer: PRESIDENT & CFO | Grant | 119,000 | $1.79 |
| Feb 5, 2026 | Farokhzad Omiddirector, officer: CEO AND CHAIR | Grant | 697,162 | — |
| Feb 5, 2026 | Farokhzad Omiddirector, officer: CEO AND CHAIR | Grant | 512,000 | $1.79 |
| Nov 21, 2025 | Horn David R.officer: PRESIDENT & CFO | Sell | 6,797 | $1.97 |
| Nov 21, 2025 | Farokhzad Omiddirector, officer: CEO AND CHAIR | Sell | 33,838 | $1.97 |
| Sep 3, 2025 | Ro Isaacdirector | Grant | 41,000 | — |
| Sep 3, 2025 | Ro Isaacdirector | Grant | 61,000 | $2.04 |
| Aug 21, 2025 | Horn David R.officer: PRESIDENT & CFO | Sell | 6,827 | $2.04 |
| Aug 21, 2025 | Farokhzad Omiddirector, officer: CEO AND CHAIR | Sell | 33,992 | $2.04 |
| Jul 9, 2025 | MCGUIRE TERRANCEdirector | Grant | 20,500 | — |
Source: SEER SEC Form 4 filings, latest Aug 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SEER positions over the last 6 months (SEC Form 13F).
Increased
12
New positions
10
Reduced
24
Sold out
58
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| SOFTBANK GROUP CORP. | Unchanged | 5.1M | May 15, 2026 |
| SIREN, L.L.C. | Reduced | 2.5M | May 14, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 2.1M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.0M | May 15, 2026 |
| BLACKROCK, INC. | Reduced | 1.8M | May 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 977K | May 14, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | Unchanged | 825K | May 15, 2026 |
| AJU IB INVESTMENT CO., LTD. | Unchanged | 816K | May 8, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 512K | May 15, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | 459K | May 15, 2026 |
| PEAPOD LANE CAPITAL LLC | Reduced | 439K | May 4, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 423K | May 15, 2026 |
| 1888 INVESTMENTS, LLC | Unchanged | 359K | May 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 222K | May 7, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 216K | May 8, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.