PRTA
Prothena Corporation plc
stockNASDAQ
At CloseNov 13, 2026 3:59:59 PM EST
8.17USD-0.729%(-0.06)340,447
After-hoursNov 13, 2026 4:15:30 PM EST
8.17USD0.000%(-0.00)
As of 2026-11-14 03:55:12 AM EST, there were 900,000 shares available with a fee of 0.26%.
PRTA Borrow Fee (CTB) · Changes
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|---|---|---|
| 2026-11-13 08:57:23 PM EST | 0.26 | 900,000 | 3.62 |
| 2026-11-13 03:27:23 PM EST | 0.26 | 950,000 | 3.62 |
| 2026-11-13 09:26:54 AM EST | 0.27 | 950,000 | 3.61 |
| 2026-11-13 08:23:49 AM EST | 0.26 | 950,000 | 3.62 |
| 2026-11-13 06:01:27 AM EST | 0.26 | 500,000 | 3.62 |
| 2026-11-13 03:08:46 AM EST | 0.26 | 400,000 | 3.62 |
| 2026-11-12 08:40:02 PM EST | 0.26 | 350,000 | 3.62 |
| 2026-11-12 02:23:08 PM EST | 0.26 | 400,000 | 3.62 |
| 2026-11-12 01:51:49 PM EST | 0.30 | 400,000 | 3.58 |
| 2026-11-12 12:33:37 PM EST | 0.30 | 250,000 | 3.58 |
| 2026-11-12 08:22:42 AM EST | 0.28 | 250,000 | 3.60 |
| 2026-11-12 06:00:56 AM EST | 0.28 | 200,000 | 3.60 |
| 2026-11-12 02:52:41 AM EST | 0.28 | 350,000 | 3.60 |
| 2026-11-11 08:56:18 PM EST | 0.28 | 300,000 | 3.60 |
| 2026-11-11 09:25:12 AM EST | 0.28 | 350,000 | 3.60 |
1 Data from Interactive Brokers. IBKR publishes an updated file every 15 minutes. If there’s no update, there aren’t any shares available.
2 A stock loan fee (a.k.a. borrow fee, borrow rate, or cost to borrow) is a fee charged by a brokerage firm to a client for borrowing shares.
3 A stock loan rebate is a cash payment granted by a brokerage to a customer who lends stock as cash collateral to short sellers. A positive rebate means the lender pays the interest to the broker-dealer; a negative rebate means the security is hard-to-borrow and the broker-dealer pays the interest to the lender.
PRTA Borrow Fee (CTB)
PRTA Borrow Fee (CTB) · Data
| Updated1 | Fee2 % | Available | Rebate3 % |
|---|
1 Data from Interactive Brokers. IBKR publishes an updated file every 15 minutes. If there’s no update, there aren’t any shares available.
2 A stock loan fee (a.k.a. borrow fee, borrow rate, or cost to borrow) is a fee charged by a brokerage firm to a client for borrowing shares.
3 A stock loan rebate is a cash payment granted by a brokerage to a customer who lends stock as cash collateral to short sellers. A positive rebate means the lender pays the interest to the broker-dealer; a negative rebate means the security is hard-to-borrow and the broker-dealer pays the interest to the lender.