Barbara Gayle Duncan
CIK 1353128 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 21, 2016 · Latest: Nov. 21, 2016
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 43 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 18, 2026 | AVIR | A | 37,700 | — | — | 37,700 Direct | — | Acquired | (price as of 2026-08-21) |
| June 18, 2026 | AVIR | A | 26,700 | — | — | 26,700 Direct | — | Acquired | (price as of 2026-08-21) |
| June 18, 2026 | AVIR | M | 29,600 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| June 18, 2026 | AVIR | M | 29,600 | — | — | 92,350 Direct | +47.17% | Acquired | (price as of 2026-08-21) |
| May 5, 2026 | HALO | A | 6,040 | — | — | 6,040 Direct | — | Acquired | (price as of 2026-08-21) |
| May 5, 2026 | HALO | A | 3,796 | — | — | 23,715 Direct | +19.06% | Acquired | (price as of 2026-08-21) |
| Feb. 26, 2026 | OVID | A | 65,000 | — | — | 65,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 20, 2025 | AVIR | M | 29,600 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| June 20, 2025 | AVIR | A | 41,200 | — | — | 41,200 Direct | — | Acquired | (price as of 2026-08-21) |
| June 20, 2025 | AVIR | A | 29,600 | — | — | 29,600 Direct | — | Acquired | (price as of 2026-08-21) |
| June 20, 2025 | AVIR | M | 29,600 | — | — | 62,750 Direct | +89.29% | Acquired | (price as of 2026-08-21) |
| May 1, 2025 | HALO | A | 4,165 | — | — | 19,919 Direct | +26.44% | Acquired | (price as of 2026-08-21) |
| May 1, 2025 | HALO | A | 5,750 | — | — | 5,750 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 20, 2025 | OVID | A | 45,000 | — | — | 45,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Dec. 12, 2024 | OVID | A | 90,000 | — | — | 90,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 21, 2024 | AVIR | A | 41,200 | — | — | 41,200 Direct | — | Acquired | (price as of 2026-08-21) |
| June 21, 2024 | AVIR | A | 29,600 | — | — | 29,600 Direct | — | Acquired | (price as of 2026-08-21) |
| June 16, 2024 | AVIR | M | 33,150 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| June 16, 2024 | AVIR | M | 33,150 | — | — | 33,150 Direct | — | Acquired | (price as of 2026-08-21) |
| April 25, 2024 | HALO | A | 6,501 | — | — | 15,754 Direct | +70.26% | Acquired | (price as of 2026-08-21) |
| April 25, 2024 | HALO | A | 8,804 | — | — | 8,804 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 22, 2024 | OVID | A | 30,000 | — | — | 30,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 16, 2023 | AVIR | A | 46,750 | — | — | 46,750 Direct | — | Acquired | (price as of 2026-08-21) |
| June 16, 2023 | AVIR | A | 33,150 | — | — | 33,150 Direct | — | Acquired | (price as of 2026-08-21) |
| May 5, 2023 | HALO | A | 8,065 | — | — | 9,253 Direct | +678.87% | Acquired | (price as of 2026-08-21) |
| May 5, 2023 | HALO | A | 11,371 | — | — | 11,371 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 23, 2023 | OVID | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 3, 2023 | HALO | A | 1,188 | — | — | 1,188 Direct | — | Acquired | (price as of 2026-08-21) |
| June 17, 2022 | AVIR | A | 61,264 | — | — | 61,264 Direct | — | Acquired | (price as of 2026-08-21) |
| April 8, 2022 | OVID | A | 21,347 | — | — | 21,347 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 3, 2022 | OVID | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 18, 2021 | AVIR | A | 34,025 | — | — | 34,025 Direct | — | Acquired | (price as of 2026-08-21) |
| June 11, 2021 | OVID | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-21) |
| May 17, 2021 | OVID | A | 1,750 | — | — | 1,750 Direct | — | Acquired | (price as of 2026-08-21) |
| Oct. 29, 2020 | AVIR | A | 80,000 | — | — | 80,000 Direct | — | Acquired | (price as of 2026-08-21) |
| June 5, 2020 | OVID | A | 13,250 | — | — | 13,250 Direct | — | Acquired | (price as of 2026-08-21) |
| Nov. 13, 2019 | OVID | A | 7,437 | — | — | 7,437 Direct | — | Acquired | (price as of 2026-08-21) |
| June 10, 2019 | OVID | A | 5,813 | — | — | 5,813 Direct | — | Acquired | (price as of 2026-08-21) |
| June 7, 2019 | OVID | A | 5,813 | — | — | 5,813 Direct | — | Acquired | (price as of 2026-08-21) |
| June 7, 2018 | OVID | A | 5,813 | — | — | 5,813 Direct | — | Acquired | (price as of 2026-08-21) |
| June 14, 2017 | OVID | A | 11,627 | — | — | 11,627 Direct | — | Acquired | (price as of 2026-08-21) |
| April 20, 2017 | INVA | A | 19,857 | — | — | 52,318 Direct | +61.17% | Acquired | (price as of 2026-08-21) |
| Nov. 18, 2016 | INVA | A | 32,461 | — | — | 32,461 Direct | — | Acquired | (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| June 18, 2026 | AVIR | Stock Option (Right to Buy) | Common Stock (37,700) | $4.36 | June 17, 2036 | 37,700 | Acquired |
| June 18, 2026 | AVIR | Restricted Stock Units | Common Stock (26,700) | — | — | 26,700 | Acquired |
| June 18, 2026 | AVIR | Restricted Stock Units | Common Stock (29,600) | — | — | 29,600 | Disposed |
| May 5, 2026 | HALO | Option to Purchase Common Stock | Common Stock (6,040) | $65.87 | May 5, 2036 | 6,040 | Acquired |
| Feb. 26, 2026 | OVID | Employee Stock Option (Right to Buy) | Common Stock (65,000) | $1.65 | Feb. 25, 2036 | 65,000 | Acquired |
| June 20, 2025 | AVIR | Restricted Stock Units | Common Stock (29,600) | — | — | 29,600 | Disposed |
| June 20, 2025 | AVIR | Stock Option (Right to Buy) | Common Stock (41,200) | $3.25 | June 19, 2035 | 41,200 | Acquired |
| June 20, 2025 | AVIR | Restricted Stock Units | Common Stock (29,600) | — | — | 29,600 | Acquired |
| May 1, 2025 | HALO | Option to Purchase Common Stock | Common Stock (5,750) | $60.03 | May 1, 2035 | 5,750 | Acquired |
| Feb. 20, 2025 | OVID | Stock Option (right to buy) | Common Stock (45,000) | $0.57 | Feb. 19, 2035 | 45,000 | Acquired |
| Dec. 12, 2024 | OVID | Stock Option (Right to Buy) | Common Stock (90,000) | $1.06 | Dec. 11, 2034 | 90,000 | Acquired |
| June 21, 2024 | AVIR | Stock Option (Right to Buy) | Common Stock (41,200) | $3.44 | June 20, 2034 | 41,200 | Acquired |
| June 21, 2024 | AVIR | Restricted Stock Units | Common Stock (29,600) | — | — | 29,600 | Acquired |
| June 16, 2024 | AVIR | Restricted Stock Units | Common Stock (33,150) | — | — | 33,150 | Disposed |
| April 25, 2024 | HALO | Option to Purchase Common Stock | Common Stock (8,804) | $38.46 | April 25, 2034 | 8,804 | Acquired |
| Feb. 22, 2024 | OVID | Stock Option (Right to Buy) | Common Stock (30,000) | $3.68 | Feb. 21, 2034 | 30,000 | Acquired |
| June 16, 2023 | AVIR | Stock Option (Right to Buy) | Common Stock (46,750) | $4.12 | June 15, 2033 | 46,750 | Acquired |
| June 16, 2023 | AVIR | Restricted Stock Units | Common Stock (33,150) | — | — | 33,150 | Acquired |
| May 5, 2023 | HALO | Option to Purchase Common Stock | Common Stock (11,371) | $31.00 | May 5, 2033 | 11,371 | Acquired |
| Feb. 23, 2023 | OVID | Stock Option (Right to Buy) | Common Stock (15,000) | $2.50 | Feb. 22, 2033 | 15,000 | Acquired |
| June 17, 2022 | AVIR | Stock Option (Right to Buy) | Common Stock (61,264) | $6.50 | June 16, 2032 | 61,264 | Acquired |
| April 8, 2022 | OVID | Stock Option (Right to Buy) | Common Stock (21,347) | $3.22 | April 7, 2032 | 21,347 | Acquired |
| Feb. 3, 2022 | OVID | Stock Option (Right to Buy) | Common Stock (15,000) | $2.72 | Feb. 2, 2032 | 15,000 | Acquired |
| June 18, 2021 | AVIR | Stock Option (Right to Buy) | Common Stock (34,025) | $23.39 | June 17, 2031 | 34,025 | Acquired |
| June 11, 2021 | OVID | Stock Option (Right to Buy) | Common Stock (15,000) | $4.49 | June 10, 2031 | 15,000 | Acquired |
| May 17, 2021 | OVID | Stock Option (Right to Buy) | Common Stock (1,750) | $3.67 | May 16, 2031 | 1,750 | Acquired |
| Oct. 29, 2020 | AVIR | Stock Option (Right to Buy) | Common Stock (80,000) | $24.00 | Oct. 28, 2030 | 80,000 | Acquired |
| June 5, 2020 | OVID | Stock Option (Right to Buy) | Common Stock (13,250) | $5.29 | June 4, 2030 | 13,250 | Acquired |
| Nov. 13, 2019 | OVID | Stock Option (right to buy) | Common Stock (7,437) | $2.43 | Nov. 12, 2029 | 7,437 | Acquired |
| June 10, 2019 | OVID | Stock Option (Right to Buy) [F1] | Common Stock (5,813) | $1.65 | June 9, 2029 | 5,813 | Acquired |
| June 7, 2019 | OVID | Stock Option (Right to Buy) | Common Stock (5,813) | $1.60 | June 6, 2029 | 5,813 | Acquired |
| June 7, 2018 | OVID | Stock Option (Right to Buy) | Common Stock (5,813) | $8.12 | June 6, 2028 | 5,813 | Acquired |
| June 14, 2017 | OVID | Stock Option (Right to Buy) | Common Stock (11,627) | $13.91 | June 13, 2027 | 11,627 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 21, 2016 | INVA | No securities are beneficially owned. | 0 | Direct |