David W. Boyer
Insider
First SEC filing: Feb. 9, 2022 · Latest: Feb. 9, 2022
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-739,070
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 14, 2026 | NBIX | S 10b5-1 | 826 | $157.45 | $130,054 | 8,722 Direct | -8.65% | Disposed | -9.1% (price as of 2026-10-02) |
| Sept. 11, 2026 | NBIX | A | 3,587 | · | · | 11,484 Direct | +45.42% | Acquired | (price as of 2026-10-02) |
| Sept. 11, 2026 | NBIX | F | 1,936 | $156.22 | $302,442 | 9,548 Direct | -16.86% | Disposed | -8.3% (price as of 2026-10-02) |
| May 26, 2026 | NBIX | S 10b5-1 | 3,888 | $156.64 | $609,016 | 7,799 Direct | -33.27% | Disposed | -8.6% (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | M | 1,541 | · | · | 6,990 Direct | +28.28% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | F | 832 | $124.12 | $103,268 | 6,158 Direct | -11.90% | Disposed | 15.4% (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | M | 1,811 | · | · | 7,969 Direct | +29.41% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | F | 978 | $124.12 | $121,389 | 6,991 Direct | -12.27% | Disposed | 15.4% (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | A | 9,968 | · | · | 16,959 Direct | +142.58% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | F | 5,378 | $124.12 | $667,517 | 11,581 Direct | -31.71% | Disposed | 15.4% (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | M | 1,541 | · | · | 3,083 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | M | 1,811 | · | · | 1,812 Direct | -49.99% | Disposed | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | A | 31,234 | · | · | 31,234 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2026 | NBIX | A | 5,479 | · | · | 5,479 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | NBIX | M | 1,600 | · | · | 6,313 Direct | +33.95% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2026 | NBIX | F | 864 | $123.10 | $106,358 | 5,449 Direct | -13.69% | Disposed | 16.3% (price as of 2026-10-02) |
| Feb. 12, 2026 | NBIX | M | 1,600 | · | · | 4,801 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Jan. 31, 2026 | NBIX | M | 2,096 | · | · | 5,902 Direct | +55.07% | Acquired | (price as of 2026-10-02) |
| Jan. 31, 2026 | NBIX | F | 1,189 | $136.06 | $161,775 | 4,713 Direct | -20.15% | Disposed | 5.2% (price as of 2026-10-02) |
| Jan. 31, 2026 | NBIX | M | 2,096 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | M | 1,811 | · | · | 3,623 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | M | 1,541 | · | · | 4,624 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | S 10b5-1 | 830 | $116.69 | $96,853 | 3,565 Direct | -18.89% | Disposed | 22.7% (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | M | 1,541 | · | · | 4,395 Direct | +53.99% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | S 10b5-1 | 955 | $116.79 | $111,534 | 2,854 Direct | -25.07% | Disposed | 22.6% (price as of 2026-10-02) |
| Feb. 13, 2025 | NBIX | M | 1,811 | · | · | 3,809 Direct | +90.64% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2025 | NBIX | A | 6,401 | · | · | 6,401 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2025 | NBIX | A | 34,153 | · | · | 34,153 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 10, 2025 | NBIX | S 10b5-1 | 700 | $118.31 | $82,817 | 1,998 Direct | -25.95% | Disposed | 21.0% (price as of 2026-10-02) |
| Feb. 8, 2025 | NBIX | M | 1,329 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 8, 2025 | NBIX | M | 1,329 | · | · | 2,698 Direct | +97.08% | Acquired | (price as of 2026-10-02) |
| Jan. 31, 2025 | NBIX | M | 2,096 | · | · | 2,096 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Jan. 31, 2025 | NBIX | S 10b5-1 | 1,104 | $152.94 | $168,846 | 1,369 Direct | -44.64% | Disposed | -6.4% (price as of 2026-10-02) |
| Jan. 31, 2025 | NBIX | M | 2,096 | · | · | 2,473 Direct | +555.97% | Acquired | (price as of 2026-10-02) |
| Oct. 3, 2024 | NBIX | S 10b5-1 | 1,295 | $113.66 | $147,190 | 377 Direct | -77.45% | Disposed | 26.0% (price as of 2026-10-02) |
| Sept. 13, 2024 | NBIX | S 10b5-1 | 3,461 | $121.88 | $421,827 | 1,672 Direct | -67.43% | Disposed | 17.5% (price as of 2026-10-02) |
| Feb. 13, 2024 | NBIX | A | 6,165 | · | · | 6,165 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2024 | NBIX | A | 30,977 | · | · | 30,977 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2024 | NBIX | S 10b5-1 | 856 | $133.05 | $113,891 | 4,895 Direct | -14.88% | Disposed | 7.6% (price as of 2026-10-02) |
| Feb. 13, 2024 | NBIX | S 10b5-1 | 955 | $133.10 | $127,110 | 5,751 Direct | -14.24% | Disposed | 7.6% (price as of 2026-10-02) |
| Feb. 8, 2024 | NBIX | S 10b5-1 | 628 | $136.78 | $85,898 | 4,895 Direct | -11.37% | Disposed | 4.7% (price as of 2026-10-02) |
| Feb. 8, 2024 | NBIX | S 10b5-1 | 700 | $134.19 | $93,933 | 5,523 Direct | -11.25% | Disposed | 6.7% (price as of 2026-10-02) |
| Feb. 6, 2024 | NBIX | S 10b5-1 | 216 | $141.96 | $30,663 | 4,894 Direct | -4.23% | Disposed | 0.9% (price as of 2026-10-02) |
| Feb. 6, 2024 | NBIX | S 10b5-1 | 240 | $141.96 | $34,070 | 5,110 Direct | -4.49% | Disposed | 0.9% (price as of 2026-10-02) |
| Jan. 31, 2024 | NBIX | S 10b5-1 | 992 | $140.72 | $139,594 | 4,894 Direct | -16.85% | Disposed | 1.7% (price as of 2026-10-02) |
| Jan. 31, 2024 | NBIX | S 10b5-1 | 1,104 | $140.87 | $155,520 | 5,886 Direct | -15.79% | Disposed | 1.6% (price as of 2026-10-02) |
| Oct. 2, 2023 | NBIX | S 10b5-1 | 1,437 | $112.68 | $161,921 | 4,894 Direct | -22.70% | Disposed | 27.1% (price as of 2026-10-02) |
| Aug. 30, 2023 | NBIX | S 10b5-1 | 1,438 | $108.22 | $155,620 | 3,460 Direct | -29.36% | Disposed | 32.3% (price as of 2026-10-02) |
| Aug. 30, 2023 | NBIX | S 10b5-1 | 1,295 | $106.90 | $138,436 | 4,898 Direct | -20.91% | Disposed | 33.9% (price as of 2026-10-02) |
| Aug. 21, 2023 | NBIX | S | 1,600 | $107.41 | $171,856 | 6,193 Direct | -20.53% | Disposed | 33.3% (price as of 2026-10-02) |
| Feb. 13, 2023 | NBIX | A | 7,245 | · | · | 7,245 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2023 | NBIX | A | 45,027 | · | · | 45,027 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | NBIX | S 10b5-1 | 700 | $104.11 | $72,877 | 4,755 Direct | -12.83% | Disposed | 37.5% (price as of 2026-10-02) |
| Feb. 7, 2023 | NBIX | S 10b5-1 | 11,497 | $102.42 | $1,177,523 | 4,127 Direct | -73.59% | Disposed | 39.8% (price as of 2026-10-02) |
| Feb. 7, 2023 | NBIX | S | 12,801 | $102.41 | $1,310,950 | 15,624 Direct | -45.03% | Disposed | 39.8% (price as of 2026-10-02) |
| Feb. 6, 2023 | NBIX | S 10b5-1 | 240 | $105.61 | $25,346 | 4,127 Direct | -5.50% | Disposed | 35.6% (price as of 2026-10-02) |
| Jan. 31, 2023 | NBIX | S 10b5-1 | 1,104 | $109.92 | $121,352 | 3,911 Direct | -22.01% | Disposed | 30.3% (price as of 2026-10-02) |
| Oct. 31, 2022 | NBIX | S 10b5-1 | 1,295 | $114.12 | $147,785 | 2,919 Direct | -30.73% | Disposed | 25.5% (price as of 2026-10-02) |
| Oct. 3, 2022 | NBIX | S 10b5-1 | 1,437 | $106.59 | $153,170 | 4,214 Direct | -25.43% | Disposed | 34.3% (price as of 2026-10-02) |
| Feb. 8, 2022 | NBIX | S 10b5-1 | 700 | $79.62 | $55,734 | 2,919 Direct | -19.34% | Disposed | 79.8% (price as of 2026-10-02) |
| Feb. 7, 2022 | NBIX | S 10b5-1 | 240 | $81.07 | $19,457 | 2,291 Direct | -9.48% | Disposed | 76.6% (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 13, 2026 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,541 | Disposed |
| Feb. 13, 2026 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,811 | Disposed |
| Feb. 13, 2026 | NBIX | Stock Option | Common Stock | $124.12 | Feb. 13, 2036 | 31,234 | Acquired |
| Feb. 13, 2026 | NBIX | Restricted Stock Unit | Common Stock | · | · | 5,479 | Acquired |
| Feb. 12, 2026 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,600 | Disposed |
| Jan. 31, 2026 | NBIX | Restriced Stock Unit | Common Stock | · | · | 2,096 | Disposed |
| Feb. 13, 2025 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,811 | Disposed |
| Feb. 13, 2025 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,541 | Disposed |
| Feb. 12, 2025 | NBIX | Restricted Stock Unit | Common Stock | · | · | 6,401 | Acquired |
| Feb. 12, 2025 | NBIX | Stock Option | Common Stock | $117.18 | Feb. 12, 2035 | 34,153 | Acquired |
| Feb. 8, 2025 | NBIX | Restricted Stock Unit | Common Stock | · | · | 1,329 | Disposed |
| Jan. 31, 2025 | NBIX | Restriced Stock Unit | Common Stock | · | · | 2,096 | Disposed |
| Feb. 13, 2024 | NBIX | Restricted Stock Unit | Common Stock | · | · | 6,165 | Acquired |
| Feb. 13, 2024 | NBIX | Stock Option | Common Stock | $133.84 | Feb. 13, 2034 | 30,977 | Acquired |
| Feb. 13, 2023 | NBIX | Restricted Stock Unit | Common Stock | · | · | 7,245 | Acquired |
| Feb. 13, 2023 | NBIX | Stock Option | Common Stock | $103.52 | Feb. 13, 2033 | 45,027 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 13 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 9, 2022 | NBIX | Common Stock | 2,075 | Direct |
| Feb. 9, 2022 | NBIX | Incentive Stock Option | 4,480 | Direct |
| Feb. 9, 2022 | NBIX | Non-Qualified Stock Option | 43,724 | Direct |
| Feb. 9, 2022 | NBIX | Incentive Stock Option | 479 | Direct |
| Feb. 9, 2022 | NBIX | Non-Qualified Stock Option | 11,024 | Direct |
| Feb. 9, 2022 | NBIX | Incentive Stock Option | 1,281 | Direct |
| Feb. 9, 2022 | NBIX | Non-Qualified Stock Option | 33,754 | Direct |
| Feb. 9, 2022 | NBIX | Incentive Stock Option | 1,190 | Direct |
| Feb. 9, 2022 | NBIX | Non-Qualified Stock Option | 55,907 | Direct |
| Feb. 9, 2022 | NBIX | Restricted Stock Unit | 10,927 | Direct |
| Feb. 9, 2022 | NBIX | Restricted Stock Unit | 1,823 | Direct |
| Feb. 9, 2022 | NBIX | Restricted Stock Unit | 5,314 | Direct |
| Feb. 9, 2022 | NBIX | Restriced Stock Unit | 8,384 | Direct |