Ron Squarer serves as Executive at HOSPIRA INC, where they oversee executive responsibilities. Since joining the company, Ron Squarer has executed 63 insider transactions totaling $20.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 10, 2025 involved receiving (via award) 2,837 shares valued at $0.
Ron Squarer currently holds 2,837 shares of HOSPIRA INC (HSP), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Ron Squarer has been a net seller of HSP stock. They have purchased $74.4K and sold $20.7M worth of shares.
Ron Squarer's most recent insider trade was on Dec 10, 2025, when they sold 2,837 shares at $0.00 per share.
Get notified when new Form 4 filings are submitted
| $2.89 |
| Discretionary |
| Jun 13, 2024 | ADCT | $0 | Award | 40,000 | $N/A | Discretionary |
| May 8, 2024 | TVTX | $0 | Award | 6,500 | $N/A | Discretionary |
| May 17, 2023 | TVTX | $0 | Award | 4,500 | $N/A | Discretionary |
| May 11, 2022 | TVTX | $0 | Award | 3,000 | $N/A | Discretionary |
| May 14, 2021 | TVTX | $0 | Award | 3,000 | $N/A | Discretionary |
| May 15, 2020 | RTRX | $0 | Award | 3,000 | $N/A | Discretionary |
| Jul 30, 2019 | ARRY | $0 | Disposition | 442,190 | $N/A | Discretionary |
| Jul 30, 2019 | ARRY | $12.5M | Disposition | 259,891 | $48.00 | Discretionary |
| May 8, 2019 | RTRX | $0 | Award | 2,000 | $N/A | Discretionary |
| Apr 1, 2019 | ARRY | $409.1K | Payment | 16,631 | $24.60 | Discretionary |
| Apr 1, 2019 | ARRY | $0 | Option Exercise | 37,813 | $N/A | Discretionary |
| Feb 7, 2019 | ARRY | $2.4M | Sale | 110,000 | $21.64 | Discretionary |
| Feb 7, 2019 | ARRY | $397.1K | Option Exercise | 110,000 | $3.61 | Discretionary |
| Jan 31, 2019 | ARRY | $2.1M | Sale | 113,438 | $18.53 | Discretionary |
| Jan 31, 2019 | ARRY | $828.1K | Option Exercise | 113,438 | $7.30 | Discretionary |
| Jan 30, 2019 | ARRY | $361.0K | Option Exercise | 100,000 | $3.61 | Discretionary |
| Jan 30, 2019 | ARRY | $1.8M | Sale | 100,000 | $18.25 | Discretionary |
| Dec 16, 2018 | ARRY | $340.2K | Payment | 21,303 | $15.97 | Discretionary |
| Dec 16, 2018 | ARRY | $0 | Option Exercise | 48,437 | $N/A | Discretionary |
| Jun 27, 2018 | ARRY | $2.5M | Sale | 140,625 | $18.03 | Discretionary |
| Jun 27, 2018 | ARRY | $1.2M | Option Exercise | 140,625 | $8.79 | Discretionary |
| Jun 27, 2018 | ARRY | $774.0K | Sale | 43,628 | $17.74 | Discretionary |
| Jun 27, 2018 | ARRY | $0 | Option Exercise | 77,881 | $N/A | Discretionary |
| Jun 27, 2018 | ARRY | $633.7K | Payment | 34,253 | $18.50 | Discretionary |
| May 9, 2018 | RTRX | $0 | Award | 2,500 | $N/A | Discretionary |
| Apr 1, 2018 | ARRY | $271.0K | Payment | 16,605 | $16.32 | Discretionary |
| Apr 1, 2018 | ARRY | $0 | Option Exercise | 18,906 | $N/A | Discretionary |
| Dec 19, 2017 | ARRY | $481.5K | Option Exercise | 133,380 | $3.61 | Discretionary |