InsiderTrades

Snyder Mark Howard

SEC CIK 1902866 · EDGAR

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
HALOHALOZYME THERAPEUTICS, INC.SVP, GC 52.6K — — 222023-01-032026-06-12

Most active insiders at HALO, 12 months

#InsiderTitleBoughtSold
1 Torley HelenPres AND CEO, Dir —$39.85M
2 Caudill CortneySVP, COO —$2.23M
3 Posard Matthew L.Dir —$2.05M
4 Connaughton BernadetteDir —$989.9K
5 Krishnan MaheshDir —$547.8K
6 LaBrosse NicoleSVP, CFO ——
7 Snyder Mark HowardSVP, CLO ——
8 Appelhans DannielleDir ——
9 Lang James PaulDir ——
10 DUNCAN BARBARA GAYLEDir ——

Transactions 22

Type
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X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
D 2026-06-15 16:09 2026-06-12 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +5,034 52.6K +11% $0
D 2026-06-15 16:09 2026-06-12 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $69.50 -2,715 49.9K -5% -$188.7K
DM 2026-02-24 2026-02-20+ HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +12.3K 51.4K +32% $0
DM 2026-02-24 2026-02-20+ HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $70.79 -6,658 44.4K -13% -$471.3K
DM 2026-02-17 2026-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +16.8K 39.0K +76% $0
DM 2026-02-17 2026-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $79.44 -9,068 41.9K -18% -$720.4K
D 2026-01-06 2026-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $70.31 -4,243 34.2K -11% -$298.3K
D 2026-01-06 2026-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +7,611 38.4K +25% $0
D 2025-06-13 2025-06-12 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $54.54 -2,711 30.8K -8% -$147.9K
D 2025-06-13 2025-06-12 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +5,035 33.5K +18% $0
D 2025-02-24 2025-02-23 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +7,012 32.3K +28% $0
D 2025-02-24 2025-02-23 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $57.75 -3,775 28.5K -12% -$218.0K
DM 2025-02-18 2025-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +22.2K 27.8K +394% $0
DM 2025-02-18 2025-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $58.29 -12.0K 23.0K -34% -$696.9K
D 2025-01-06 2025-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO M - OptEx $0.00 +7,611 19.3K +65% $0
D 2025-01-06 2025-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, CLO F - Tax $47.74 -4,289 15.0K -22% -$204.8K
D 2024-02-20 2024-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC M - OptEx $0.00 +4,796 14.3K +51% $0
D 2024-02-20 2024-02-16 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC F - Tax $36.10 -2,577 11.7K -18% -$93.0K
D 2024-01-05 2024-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC M - OptEx $0.00 +7,611 12.4K +158% $0
D 2024-01-05 2024-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC F - Tax $35.78 -2,957 9,461 -24% -$105.8K
D 2023-01-04 2023-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC M - OptEx $0.00 +7,611 7,611 New $0
D 2023-01-04 2023-01-03 HALO HALOZYME THERAPEUTICS, INC. Snyder Mark Howard SVP, GC F - Tax $55.13 -2,804 4,807 -37% -$154.6K

Purchase Sale Sale after option exercise All abbreviations