Shiu Lambert has filed 37 insider transactions across 1 company since October 2023.
Most recent transaction: a tax payment of 150 shares of Penumbra Inc ($PEN) on March 15, 2026.
Activity breakdown: 0 open-market purchases and 10 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 150 | $336.18 | 39,623.0000 | 39,302,239 | 0.38% | 0.00% |
| Feb. 17, 2026 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 2300 | $0.00 | 39,773.0000 | 39,302,239 | 6.14% | 0.01% |
| Feb. 13, 2026 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 2300 | $0.00 | 37,885.0000 | 39,302,239 | 6.46% | 0.01% |
| Feb. 15, 2026 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 412 | $339.30 | 37,473.0000 | 39,302,239 | 1.09% | 0.00% |
| Dec. 15, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 300 | $309.15 | 35,585.0000 | 39,302,239 | 0.84% | 0.00% |
| Nov. 17, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 3580 | $0.00 | 35,865.0000 | 39,302,239 | 11.09% | 0.01% |
| Nov. 15, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 506 | $280.07 | 32,285.0000 | 39,302,239 | 1.54% | 0.00% |
| Nov. 15, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 346 | $280.07 | 32,791.0000 | 39,302,239 | 1.04% | 0.00% |
| March 15, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 213 | $272.62 | 33,056.0000 | 39,268,037 | 0.64% | 0.00% |
| March 4, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Common Stock | 9200 | $22.04 | 33,770.0000 | 39,268,037 | 37.44% | 0.02% |
| March 4, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 501 | $282.88 | 33,269.0000 | 39,268,037 | 1.48% | 0.00% |
| March 4, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Stock Option (right to buy) | 9200 | $0.00 | 0.0000 | 39,268,037 | 100.00% | 0.02% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 1672 | $285.16 | 28,750.0000 | 39,268,037 | 5.50% | 0.00% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 2850 | $286.28 | 25,900.0000 | 39,268,037 | 9.91% | 0.01% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 348 | $288.57 | 25,552.0000 | 39,268,037 | 1.34% | 0.00% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 956 | $288.88 | 24,596.0000 | 39,268,037 | 3.74% | 0.00% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 26 | $289.76 | 24,570.0000 | 39,268,037 | 0.11% | 0.00% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 886 | $283.15 | 30,972.0000 | 39,268,037 | 2.78% | 0.00% |
| March 3, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 550 | $283.96 | 30,422.0000 | 39,268,037 | 1.78% | 0.00% |
| Feb. 18, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 1510 | $0.00 | 31,953.0000 | 39,268,037 | 4.96% | 0.00% |
| Feb. 14, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Stock Option (right to buy) | 4525 | $0.00 | 9,200.0000 | 39,268,037 | 32.97% | 0.01% |
| Feb. 18, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 95 | $271.14 | 31,858.0000 | 39,268,037 | 0.30% | 0.00% |
| Feb. 14, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Common Stock | 4525 | $22.04 | 29,803.0000 | 39,268,037 | 17.90% | 0.01% |
| Feb. 14, 2025 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 640 | $0.00 | 30,443.0000 | 39,268,037 | 2.15% | 0.00% |
| Dec. 15, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 300 | $245.55 | 25,278.0000 | 39,178,227 | 1.17% | 0.00% |
| Nov. 29, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 1798 | $242.56 | 20,982.0000 | 39,178,227 | 7.89% | 0.00% |
| Dec. 3, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Common Stock | 5250 | $12.36 | 25,578.0000 | 39,178,227 | 25.83% | 0.01% |
| Dec. 3, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Stock Option (right to buy) | 5250 | $0.00 | 0.0000 | 39,178,227 | 100.00% | 0.01% |
| Dec. 2, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | S | Common Stock | 654 | $243.01 | 20,328.0000 | 39,178,227 | 3.12% | 0.00% |
| Nov. 15, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 504 | $237.84 | 22,780.0000 | 39,178,227 | 2.16% | 0.00% |
| Nov. 15, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 2570 | $0.00 | 23,284.0000 | 39,178,227 | 12.41% | 0.01% |
| March 15, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 232 | $222.15 | 20,607.0000 | 39,216,564 | 1.11% | 0.00% |
| March 15, 2024 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | A | Common Stock | 1670 | $0.00 | 20,839.0000 | 39,216,564 | 8.71% | 0.00% |
| Dec. 15, 2023 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 227 | $245.48 | 19,169.0000 | 37,841,874 | 1.17% | 0.00% |
| Nov. 15, 2023 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | F | Common Stock | 381 | $227.88 | 19,385.0000 | 37,841,874 | 1.93% | 0.00% |
| Oct. 9, 2023 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Common Stock | 2750 | $12.36 | 19,766.0000 | 37,841,874 | 16.16% | 0.01% |
| Oct. 9, 2023 | Penumbra Inc | $PEN | Shiu Lambert | Chief Accounting Officer | M | Stock Option (right to buy) | 2750 | $0.00 | 5,250.0000 | 37,841,874 | 34.38% | 0.01% |