2m 2m 2m 2m 2m 2m 2m
ADAPTIVE BIOTECH (ADPT)
NASDAQ
$26.04+$0.05 (+0.19%)
Price as of Aug 21, 2026 7:39 PM EDT- $4.1BMarket Cap
- 99.92%1-Year Change
- Diagnostics & ResearchIndustry
ADAPTIVE BIOTECH (ADPT)
$26.04+$0.05 (+0.19%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VIKING GLOBAL INVESTORS LP | 18.74% | 30.0M | 0 (0.00%) | Jun 30, 2026 |
BLACKROCK, INC. | 9.46% | 15.1M | +1.8M (+12.13%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 7.57% | 12.1M | +188,005 (+1.55%) | Dec 31, 2024 |
BLACKROCK INC. | 7.29% | 11.7M | +473,883 (+4.06%) | Jun 30, 2024 |
MATRIX CAPITAL MANAGEMENT COMPANY, LLC | 7.23% | 11.6M | 0 (0.00%) | Dec 31, 2021 |
VANGUARD GROUP INC | 7.05% | 11.3M | +6,983 (+0.06%) | Dec 31, 2025 |
VANGUARD CAPITAL MANAGEMENT LLC | 4.00% | 6.4M | +309,443 (+4.83%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 5.36% | 8.6M | +168,852 (+1.97%) | Mar 31, 2026 |
Ark ETF Trust | 1.33% | 2.1M | -25,670 (-1.21%) | Apr 30, 2026 |
FIDELITY SALEM STREET TRUST | 1.13% | 1.8M | +1.7M (+93.71%) | Apr 30, 2026 |
ALGER FUNDS | 1.08% | 1.7M | +47,785 (+2.77%) | Apr 30, 2026 |
AIM GROWTH SERIES (INVESCO GROWTH SERIES) | 1.08% | 1.7M | +530,308 (+30.75%) | Mar 31, 2026 |
LORD ABBETT DEVELOPING GROWTH FUND, INC. | 1.06% | 1.7M | 0 (0.00%) | Apr 30, 2026 |
T. Rowe Price New Horizons Fund, Inc. | 1.03% | 1.6M | 0 (0.00%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions2.7B (78.05%)
- Mutual Funds645.3M (18.42%)
- Insiders123.4M (3.52%)
- Other0 (0.00%)
Insider Transactions
- 3.52% (123.4M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 9Number of InsiderSelling (last 12 months)
- $917.2MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
HERSHBERG ROBERT | Exempt | Aug 18, 2026 | $0.00 | 15,000 | $0.00 | 0 |
ROBINS CHAD M CEO and Chairman | Exempt | Aug 18, 2026 | $0.00 | 278,676 | $0.00 | 0 |
HERSHBERG ROBERT | Exempt | Aug 18, 2026 | $94,800.00 | 15,000 | $6.32 | 77,347 |
ROBINS CHAD M CEO and Chairman | Exempt | Aug 18, 2026 | $1.8M | 278,676 | $6.55 | 2.5M |
HERSHBERG ROBERT | Sell | Aug 18, 2026 | $365,850.00 | 15,000 | $24.39 | 62,347 |
ROBINS CHAD M CEO and Chairman | Sell | Aug 18, 2026 | $6.8M | 278,472 | $24.48 | 2.2M |
HERSHBERG ROBERT | Sell | Aug 18, 2026 | $382,358.24 | 15,664 | $24.41 | 46,683 |
ROBINS CHAD M CEO and Chairman | Sell | Aug 18, 2026 | $5,128.56 | 204 | $25.14 | 2.2M |
ROBINS CHAD M CEO and Chairman | Exempt | Aug 17, 2026 | $0.00 | 321,324 | $0.00 | 278,676 |
ROBINS CHAD M CEO and Chairman | Exempt | Aug 17, 2026 | $2.1M | 321,324 | $6.55 | 2.5M |
ROBINS CHAD M CEO and Chairman | Sell | Aug 17, 2026 | $8.0M | 318,799 | $25.08 | 2.2M |
ROBINS CHAD M CEO and Chairman | Sell | Aug 17, 2026 | $64,564.25 | 2,525 | $25.57 | 2.2M |
BOBULSKY SUSAN Chief Commercial Officer, MRD | Sell | Aug 10, 2026 | $75,000.00 | 3,000 | $25.00 | 396,989 |
BOBULSKY SUSAN Chief Commercial Officer, MRD | Sell | Jul 30, 2026 | $31,176.00 | 1,299 | $24.00 | 399,989 |
BOBULSKY SUSAN Chief Commercial Officer, MRD | Sell | Jul 16, 2026 | $115,000.00 | 5,000 | $23.00 | 401,288 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $0.00 | 59,374 | $0.00 | 0 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $0.00 | 23,677 | $0.00 | 132,246 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $0.00 | 22,711 | $0.00 | 37,511 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $463,117.20 | 59,374 | $7.80 | 290,087 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $287,438.78 | 23,677 | $12.14 | 313,764 |
LO FRANCIS Chief People Officer | Exempt | Jul 15, 2026 | $192,135.06 | 22,711 | $8.46 | 336,475 |
LO FRANCIS Chief People Officer | Sell | Jul 15, 2026 | $2.4M | 105,762 | $22.59 | 230,713 |
ROBINS HARLAN S Chief Scientific Officer | Sell | Jul 02, 2026 | $5.2M | 239,351 | $21.74 | 1.2M |
LO FRANCIS Chief People Officer | Exempt | Jul 02, 2026 | $98,482.80 | 12,626 | $7.80 | 250,314 |
ROBINS HARLAN S Chief Scientific Officer | Sell | Jul 02, 2026 | $3.3M | 146,889 | $22.45 | 1.0M |
LO FRANCIS Chief People Officer | Exempt | Jul 02, 2026 | $152,964.00 | 12,600 | $12.14 | 262,914 |
LO FRANCIS Chief People Officer | Exempt | Jul 02, 2026 | $106,909.02 | 12,637 | $8.46 | 275,551 |
LO FRANCIS Chief People Officer | Sell | Jul 02, 2026 | $1.0M | 44,838 | $22.59 | 230,713 |
LO FRANCIS Chief People Officer | Exempt | Jul 02, 2026 | $0.00 | 12,626 | $0.00 | 59,374 |
LO FRANCIS Chief People Officer | Exempt | Jul 02, 2026 | $0.00 | 12,600 | $0.00 | 155,923 |