PRTA Insider Purchase Research

MarketWizards.netInsider Purchase Research
PRTA
Sector : Health CareCurrent Market Cap : $434.82MInsider Purchase Pulse Date: Oct 15, 2026
Market price & volume through Shares outstanding as of (SEC filing)Short interest as of (FINRA)

How This Insider Purchase Pulse Works

“Purchase” refers to qualifying purchases made by company insiders. An Insider Purchase Pulse is a point-in-time research snapshot of that activity, not a recommendation from MarketWizards to purchase the stock. The Insider Purchase Pulse Date is the date the most recent qualifying insider purchase became public. The report summarizes all qualifying purchases disclosed during the 7-, 30-, 60-, 90-, and 180-calendar-day periods counted backward from the Pulse Date—not backward from today. Purchases disclosed on the Pulse Date itself are also included. When a new qualifying purchase becomes public, it creates a new Pulse Date, and all activity windows and KPIs are recalculated. The previous Pulse remains a historical observation, but its return monitoring closes. A new monitoring period begins from the new Pulse Date so subsequent performance is evaluated against the latest insider-information state.

The report is designed to make the timing, concentration, and scale of qualifying insider purchases across the 180-calendar-day lookback easy to see. It also tracks the stock’s subsequent return and performance relative to SPY from the Latest Pulse Date, helping readers observe how forward performance develops after each disclosed purchase pattern.

Example

For this Oct. 15, 2026 Insider Purchase Pulse, the 30-day lookback covers Sep. 16 through Oct. 15. If another qualifying purchase becomes public on Oct. 22, Oct. 22 becomes the new Pulse Date, the activity windows and KPIs are recalculated, and return monitoring begins again from the new Pulse.

Purchase Commitment

Capital Committed$9.03M180-day total
Shares Purchased1.04M180-day total

Insider Participation

Buyers1180-day total
Events15180-day total

Insider Cost & Market Price

Weighted Cost$8.73
Market Price$8.47
Price vs Cost-2.94%

Relative Purchase Size

180D Purchase / Current Market Cap i2.08%
180D Shares Purchased / Current Shares Outstanding i2.02%

Short Interest & Liquidity

Short Interest i15.60%
Days to Cover i14.38 days

Price & Insider Purchases Before the Pulse Date

Six-month price history ending on the Pulse Date. Purchase markers use transaction dates and reported weighted purchase prices.

$6.90$8.95$11.00$13.04Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026Pulse Date - Oct 15, 2026Market PriceSPY - RebasedInsider PurchasePulse DateApr 15, 2026Closing Price$10.82Apr 16, 2026Closing Price$10.52Apr 17, 2026Closing Price$10.90Apr 20, 2026Closing Price$10.79Apr 21, 2026Closing Price$10.67Apr 22, 2026Closing Price$10.72Apr 23, 2026Closing Price$10.73Apr 24, 2026Closing Price$10.75Apr 27, 2026Closing Price$10.79Apr 28, 2026Closing Price$11.51Apr 29, 2026Closing Price$10.87Apr 30, 2026Closing Price$11.06May 1, 2026Closing Price$10.64May 4, 2026Closing Price$10.79May 5, 2026Closing Price$11.19May 6, 2026Closing Price$11.18May 7, 2026Closing Price$10.52May 8, 2026Closing Price$10.73May 11, 2026Closing Price$9.67May 12, 2026Closing Price$9.43May 13, 2026Closing Price$9.60May 14, 2026Closing Price$9.86May 15, 2026Closing Price$9.76May 18, 2026Closing Price$9.59May 19, 2026Closing Price$9.07May 20, 2026Closing Price$9.35May 21, 2026Closing Price$9.41May 22, 2026Closing Price$9.83May 26, 2026Closing Price$10.06May 27, 2026Closing Price$10.03May 28, 2026Closing Price$9.98May 29, 2026Closing Price$10.18Jun 1, 2026Closing Price$9.59Jun 2, 2026Closing Price$9.19Jun 3, 2026Closing Price$8.92Jun 4, 2026Closing Price$9.25Jun 5, 2026Closing Price$8.79Jun 8, 2026Closing Price$8.56Jun 9, 2026Closing Price$8.47Jun 10, 2026Closing Price$7.91Jun 11, 2026Closing Price$8.26Jun 12, 2026Closing Price$8.25Jun 15, 2026Closing Price$8.15Jun 16, 2026Closing Price$8.29Jun 17, 2026Closing Price$8.49Jun 18, 2026Closing Price$8.93Jun 22, 2026Closing Price$9.15Jun 23, 2026Closing Price$9.55Jun 24, 2026Closing Price$9.40Jun 25, 2026Closing Price$9.27Jun 26, 2026Closing Price$10.02Jun 29, 2026Closing Price$9.97Jun 30, 2026Closing Price$9.79Jul 1, 2026Closing Price$9.58Jul 2, 2026Closing Price$9.69Jul 6, 2026Closing Price$9.50Jul 7, 2026Closing Price$9.68Jul 8, 2026Closing Price$9.85Jul 9, 2026Closing Price$9.64Jul 10, 2026Closing Price$9.24Jul 13, 2026Closing Price$8.83Jul 14, 2026Closing Price$8.64Jul 15, 2026Closing Price$8.43Jul 16, 2026Closing Price$8.47Jul 17, 2026Closing Price$8.66Jul 20, 2026Closing Price$8.67Jul 21, 2026Closing Price$8.75Jul 22, 2026Closing Price$8.44Jul 23, 2026Closing Price$8.53Jul 24, 2026Closing Price$8.75Jul 27, 2026Closing Price$8.70Jul 28, 2026Closing Price$8.56Jul 29, 2026Closing Price$8.56Jul 30, 2026Closing Price$8.41Jul 31, 2026Closing Price$8.12Aug 3, 2026Closing Price$8.33Aug 4, 2026Closing Price$8.49Aug 5, 2026Closing Price$8.49Aug 6, 2026Closing Price$8.58Aug 7, 2026Closing Price$8.76Aug 10, 2026Closing Price$9.12Aug 11, 2026Closing Price$9.22Aug 12, 2026Closing Price$9.26Aug 13, 2026Closing Price$9.08Aug 14, 2026Closing Price$8.86Aug 17, 2026Closing Price$8.88Aug 18, 2026Closing Price$8.71Aug 19, 2026Closing Price$9.29Aug 20, 2026Closing Price$9.03Aug 21, 2026Closing Price$9.45Aug 24, 2026Closing Price$9.39Aug 25, 2026Closing Price$9.42Aug 26, 2026Closing Price$9.25Aug 27, 2026Closing Price$9.09Aug 28, 2026Closing Price$9.33Aug 31, 2026Closing Price$9.35Sep 1, 2026Closing Price$9.61Sep 2, 2026Closing Price$9.69Sep 3, 2026Closing Price$9.60Sep 4, 2026Closing Price$9.82Sep 8, 2026Closing Price$9.54Sep 9, 2026Closing Price$9.30Sep 10, 2026Closing Price$9.02Sep 11, 2026Closing Price$8.93Sep 14, 2026Closing Price$8.86Sep 15, 2026Closing Price$8.33Sep 16, 2026Closing Price$8.24Sep 17, 2026Closing Price$8.46Sep 18, 2026Closing Price$8.58Sep 21, 2026Closing Price$8.51Sep 22, 2026Closing Price$8.99Sep 23, 2026Closing Price$8.68Sep 24, 2026Closing Price$8.32Sep 25, 2026Closing Price$8.29Sep 28, 2026Closing Price$8.72Sep 29, 2026Closing Price$8.78Sep 30, 2026Closing Price$8.38Oct 1, 2026Closing Price$8.54Oct 2, 2026Closing Price$8.36Oct 5, 2026Closing Price$8.27Oct 6, 2026Closing Price$8.02Oct 7, 2026Closing Price$8.48Oct 8, 2026Closing Price$8.61Oct 9, 2026Closing Price$8.84Oct 12, 2026Closing Price$8.43Oct 13, 2026Closing Price$8.36Oct 14, 2026Closing Price$8.37Oct 15, 2026Closing Price$8.50Apr 15, 2026SPY Closing Price$699.94SPY Return0.00%Apr 16, 2026SPY Closing Price$701.66SPY Return+0.25%Apr 17, 2026SPY Closing Price$710.14SPY Return+1.46%Apr 20, 2026SPY Closing Price$708.72SPY Return+1.25%Apr 21, 2026SPY Closing Price$704.08SPY Return+0.59%Apr 22, 2026SPY Closing Price$711.21SPY Return+1.61%Apr 23, 2026SPY Closing Price$708.45SPY Return+1.22%Apr 24, 2026SPY Closing Price$713.94SPY Return+2.00%Apr 27, 2026SPY Closing Price$715.17SPY Return+2.18%Apr 28, 2026SPY Closing Price$711.69SPY Return+1.68%Apr 29, 2026SPY Closing Price$711.58SPY Return+1.66%Apr 30, 2026SPY Closing Price$718.66SPY Return+2.67%May 1, 2026SPY Closing Price$720.65SPY Return+2.96%May 4, 2026SPY Closing Price$718.01SPY Return+2.58%May 5, 2026SPY Closing Price$723.77SPY Return+3.40%May 6, 2026SPY Closing Price$733.83SPY Return+4.84%May 7, 2026SPY Closing Price$731.58SPY Return+4.52%May 8, 2026SPY Closing Price$737.62SPY Return+5.38%May 11, 2026SPY Closing Price$739.30SPY Return+5.62%May 12, 2026SPY Closing Price$738.18SPY Return+5.46%May 13, 2026SPY Closing Price$742.31SPY Return+6.05%May 14, 2026SPY Closing Price$748.17SPY Return+6.89%May 15, 2026SPY Closing Price$739.17SPY Return+5.60%May 18, 2026SPY Closing Price$738.65SPY Return+5.53%May 19, 2026SPY Closing Price$733.73SPY Return+4.83%May 20, 2026SPY Closing Price$741.25SPY Return+5.90%May 21, 2026SPY Closing Price$742.72SPY Return+6.11%May 22, 2026SPY Closing Price$745.64SPY Return+6.53%May 26, 2026SPY Closing Price$750.59SPY Return+7.24%May 27, 2026SPY Closing Price$750.46SPY Return+7.22%May 28, 2026SPY Closing Price$754.60SPY Return+7.81%May 29, 2026SPY Closing Price$756.48SPY Return+8.08%Jun 1, 2026SPY Closing Price$758.54SPY Return+8.37%Jun 2, 2026SPY Closing Price$759.57SPY Return+8.52%Jun 3, 2026SPY Closing Price$754.24SPY Return+7.76%Jun 4, 2026SPY Closing Price$757.09SPY Return+8.16%Jun 5, 2026SPY Closing Price$737.55SPY Return+5.37%Jun 8, 2026SPY Closing Price$739.22SPY Return+5.61%Jun 9, 2026SPY Closing Price$737.05SPY Return+5.30%Jun 10, 2026SPY Closing Price$725.43SPY Return+3.64%Jun 11, 2026SPY Closing Price$737.76SPY Return+5.40%Jun 12, 2026SPY Closing Price$741.75SPY Return+5.97%Jun 15, 2026SPY Closing Price$754.83SPY Return+7.84%Jun 16, 2026SPY Closing Price$750.33SPY Return+7.20%Jun 17, 2026SPY Closing Price$740.96SPY Return+5.86%Jun 18, 2026SPY Closing Price$746.74SPY Return+6.69%Jun 22, 2026SPY Closing Price$744.39SPY Return+6.35%Jun 23, 2026SPY Closing Price$733.58SPY Return+4.81%Jun 24, 2026SPY Closing Price$733.24SPY Return+4.76%Jun 25, 2026SPY Closing Price$734.30SPY Return+4.91%Jun 26, 2026SPY Closing Price$728.99SPY Return+4.15%Jun 29, 2026SPY Closing Price$741.00SPY Return+5.87%Jun 30, 2026SPY Closing Price$746.77SPY Return+6.69%Jul 1, 2026SPY Closing Price$745.76SPY Return+6.55%Jul 2, 2026SPY Closing Price$744.78SPY Return+6.41%Jul 6, 2026SPY Closing Price$751.28SPY Return+7.33%Jul 7, 2026SPY Closing Price$747.71SPY Return+6.82%Jul 8, 2026SPY Closing Price$745.40SPY Return+6.49%Jul 9, 2026SPY Closing Price$751.71SPY Return+7.40%Jul 10, 2026SPY Closing Price$754.95SPY Return+7.86%Jul 13, 2026SPY Closing Price$749.17SPY Return+7.03%Jul 14, 2026SPY Closing Price$751.83SPY Return+7.41%Jul 15, 2026SPY Closing Price$754.81SPY Return+7.84%Jul 16, 2026SPY Closing Price$750.72SPY Return+7.25%Jul 17, 2026SPY Closing Price$743.29SPY Return+6.19%Jul 20, 2026SPY Closing Price$742.09SPY Return+6.02%Jul 21, 2026SPY Closing Price$748.28SPY Return+6.91%Jul 22, 2026SPY Closing Price$747.41SPY Return+6.78%Jul 23, 2026SPY Closing Price$738.18SPY Return+5.46%Jul 24, 2026SPY Closing Price$738.93SPY Return+5.57%Jul 27, 2026SPY Closing Price$739.09SPY Return+5.59%Jul 28, 2026SPY Closing Price$740.86SPY Return+5.85%Jul 29, 2026SPY Closing Price$729.46SPY Return+4.22%Jul 30, 2026SPY Closing Price$741.69SPY Return+5.96%Jul 31, 2026SPY Closing Price$747.03SPY Return+6.73%Aug 3, 2026SPY Closing Price$757.67SPY Return+8.25%Aug 4, 2026SPY Closing Price$771.33SPY Return+10.20%Aug 5, 2026SPY Closing Price$769.79SPY Return+9.98%Aug 6, 2026SPY Closing Price$768.56SPY Return+9.80%Aug 7, 2026SPY Closing Price$773.26SPY Return+10.48%Aug 10, 2026SPY Closing Price$773.03SPY Return+10.44%Aug 11, 2026SPY Closing Price$770.56SPY Return+10.09%Aug 12, 2026SPY Closing Price$772.49SPY Return+10.37%Aug 13, 2026SPY Closing Price$777.88SPY Return+11.14%Aug 14, 2026SPY Closing Price$776.34SPY Return+10.92%Aug 17, 2026SPY Closing Price$772.67SPY Return+10.39%Aug 18, 2026SPY Closing Price$767.45SPY Return+9.65%Aug 19, 2026SPY Closing Price$769.06SPY Return+9.88%Aug 20, 2026SPY Closing Price$762.60SPY Return+8.95%Aug 21, 2026SPY Closing Price$765.72SPY Return+9.40%Aug 24, 2026SPY Closing Price$763.47SPY Return+9.08%Aug 25, 2026SPY Closing Price$765.91SPY Return+9.43%Aug 26, 2026SPY Closing Price$766.08SPY Return+9.45%Aug 27, 2026SPY Closing Price$771.10SPY Return+10.17%Aug 28, 2026SPY Closing Price$769.35SPY Return+9.92%Aug 31, 2026SPY Closing Price$767.05SPY Return+9.59%Sep 1, 2026SPY Closing Price$761.78SPY Return+8.84%Sep 2, 2026SPY Closing Price$765.16SPY Return+9.32%Sep 3, 2026SPY Closing Price$773.17SPY Return+10.46%Sep 4, 2026SPY Closing Price$770.19SPY Return+10.04%Sep 8, 2026SPY Closing Price$765.96SPY Return+9.43%Sep 9, 2026SPY Closing Price$762.40SPY Return+8.92%Sep 10, 2026SPY Closing Price$757.83SPY Return+8.27%Sep 11, 2026SPY Closing Price$764.29SPY Return+9.19%Sep 14, 2026SPY Closing Price$760.88SPY Return+8.71%Sep 15, 2026SPY Closing Price$757.39SPY Return+8.21%Sep 16, 2026SPY Closing Price$754.05SPY Return+7.73%Sep 17, 2026SPY Closing Price$762.60SPY Return+8.95%Sep 18, 2026SPY Closing Price$761.69SPY Return+8.82%Sep 21, 2026SPY Closing Price$773.50SPY Return+10.51%Sep 22, 2026SPY Closing Price$773.38SPY Return+10.49%Sep 23, 2026SPY Closing Price$767.81SPY Return+9.70%Sep 24, 2026SPY Closing Price$767.18SPY Return+9.61%Sep 25, 2026SPY Closing Price$771.35SPY Return+10.20%Sep 28, 2026SPY Closing Price$765.61SPY Return+9.38%Sep 29, 2026SPY Closing Price$764.20SPY Return+9.18%Sep 30, 2026SPY Closing Price$762.63SPY Return+8.96%Oct 1, 2026SPY Closing Price$763.99SPY Return+9.15%Oct 2, 2026SPY Closing Price$769.64SPY Return+9.96%Oct 5, 2026SPY Closing Price$774.83SPY Return+10.70%Oct 6, 2026SPY Closing Price$779.09SPY Return+11.31%Oct 7, 2026SPY Closing Price$777.22SPY Return+11.04%Oct 8, 2026SPY Closing Price$773.93SPY Return+10.57%Oct 9, 2026SPY Closing Price$778.57SPY Return+11.23%Oct 12, 2026SPY Closing Price$778.10SPY Return+11.17%Oct 13, 2026SPY Closing Price$778.01SPY Return+11.15%Oct 14, 2026SPY Closing Price$769.60SPY Return+9.95%Oct 15, 2026SPY Closing Price$771.79SPY Return+10.27%May 22, 2026Capital Committed$981.3KShares Purchased100.0KBuyers1Events1Weighted Purchase Price$9.81Publicly DisclosedMay 26, 2026Jun 2, 2026Capital Committed$471.3KShares Purchased50.0KBuyers1Events1Weighted Purchase Price$9.43Publicly DisclosedJun 3, 2026Jun 4, 2026Capital Committed$465.3KShares Purchased50.0KBuyers1Events1Weighted Purchase Price$9.31Publicly DisclosedJun 5, 2026Jun 11, 2026Capital Committed$1.02MShares Purchased125.0KBuyers1Events1Weighted Purchase Price$8.17Publicly DisclosedJun 12, 2026Jun 16, 2026Capital Committed$158.0KShares Purchased20.0KBuyers1Events1Weighted Purchase Price$7.90Publicly DisclosedJun 18, 2026Aug 7, 2026Capital Committed$323.2KShares Purchased37.5KBuyers1Events2Weighted Purchase Price$8.62Publicly DisclosedAug 10, 2026Aug 20, 2026Capital Committed$439.4KShares Purchased50.0KBuyers1Events1Weighted Purchase Price$8.79Publicly DisclosedAug 21, 2026Sep 2, 2026Capital Committed$255.7KShares Purchased27.0KBuyers1Events1Weighted Purchase Price$9.47Publicly DisclosedSep 3, 2026Sep 18, 2026Capital Committed$843.5KShares Purchased100.0KBuyers1Events1Weighted Purchase Price$8.43Publicly DisclosedSep 21, 2026Sep 28, 2026Capital Committed$889.9KShares Purchased103.5KBuyers1Events1Weighted Purchase Price$8.60Publicly DisclosedSep 29, 2026Sep 29, 2026Capital Committed$1.41MShares Purchased162.0KBuyers1Events1Weighted Purchase Price$8.68Publicly DisclosedSep 30, 2026Oct 2, 2026Capital Committed$857.2KShares Purchased100.0KBuyers1Events1Weighted Purchase Price$8.57Publicly DisclosedOct 6, 2026Oct 13, 2026Capital Committed$835.5KShares Purchased100.0KBuyers1Events1Weighted Purchase Price$8.35Publicly DisclosedOct 15, 2026Oct 14, 2026Capital Committed$84.6KShares Purchased10.0KBuyers1Events1Weighted Purchase Price$8.46Publicly DisclosedOct 15, 2026

SPY is rebased to the issuer price on the first common trading date. Marker size represents capital committed. Hover over a price line or purchase date, or use keyboard focus on a purchase date, to view details.

Stock Return After the Pulse Date

Tracks the stock's return after the Pulse Date and compares it with SPY. This chart tracks the stock’s forward returns from the Pulse Date—the date the latest qualifying insider purchase became public—showing how the stock performed after that information entered the public market—not the return earned by the insiders.

-10.00%+0.00%+10.00%1W2W3W1M2M3M6MIssuer ReturnSPY ReturnExcess Return1 Week Forward from Pulse DateIssuer: −2.9%SPY: −1.0%Excess: −1.9%2 Weeks Forward from Pulse DateIssuer: +4.5%SPY: −0.3%Excess: +4.8%

5 horizons pending—the required forward trading sessions have not elapsed yet.
Excess Return = Stock Return − SPY Return.

Insider Purchases as of the Pulse Date

Lookback windows ending on the Pulse Date - Oct 15, 2026

7-Day Lookback$920.0K110.0K shares
30-Day Lookback$4.92M575.5K shares
60-Day Lookback$5.61M652.5K shares
90-Day Lookback$5.93M690.0K shares
180-Day Lookback$9.03M1.04M shares

These calendar-day periods are counted backward from the Pulse Date - not from today.

Insider Acceleration

Shows whether insider purchasing activity is strengthening across recent, non-overlapping periods. For example, Capital and Buyer Acceleration compare the daily rate in Days 1-30 with Days 31-90; Recent Pulse compares Days 1-7 with Days 8-30. All comparison windows are counted backward from the Pulse Date—not from today.

Capital9.66xPurchase dollars/dayDays 1-30 / Days 31-90
Buyers2.00xDistinct buyers/dayDays 1-30 / Days 31-90
Events3.00xPurchase events/dayDays 1-30 / Days 31-90
Conviction4.83xDollars per distinct buyerDays 1-30 / Days 31-90
Recent Pulse0.76xPurchase dollars/dayDays 1-7 / Days 8-30
New AccelerationNoPurchases in Days 1-30with none in Days 31-90

Insider Details

All transactions shown are qualifying purchases. This report does not track sales, option exercises, or other transaction types.

2026-10-14SCULLY WILLIAM P10% Owner10,000$8.46$84,569
2026-10-13SCULLY WILLIAM P10% Owner100,000$8.35$835,480
2026-10-02SCULLY WILLIAM P10% Owner100,000$8.57$857,240
2026-09-29SCULLY WILLIAM P10% Owner162,000$8.68$1,405,674
2026-09-28SCULLY WILLIAM P10% Owner103,500$8.60$889,872
2026-09-18SCULLY WILLIAM P10% Owner100,000$8.43$843,460
2026-09-02SCULLY WILLIAM P10% Owner27,000$9.47$255,739
2026-08-20SCULLY WILLIAM P10% Owner50,000$8.79$439,430
2026-08-07SCULLY WILLIAM P10% Owner3,500$8.62$30,167
2026-08-07SCULLY WILLIAM P10% Owner34,000$8.62$293,053
2026-06-16SCULLY WILLIAM P10% Owner20,000$7.90$157,990
2026-06-11SCULLY WILLIAM P10% Owner125,000$8.17$1,021,225
2026-06-04SCULLY WILLIAM P10% Owner50,000$9.31$465,295
2026-06-02SCULLY WILLIAM P10% Owner50,000$9.43$471,300
2026-05-22SCULLY WILLIAM P10% Owner100,000$9.81$981,300

15 of 15 purchases · All qualifying purchases in the 180-day lookback are shown.

What is a qualifying insider purchase?

A qualifying insider purchase is a reported Form 4 transaction in which a company insider acquires eligible publicly traded common shares using personal capital. Each transaction must pass these controls:

  • Security class: The security must be eligible publicly traded common stock—not preferred shares, derivatives, options, warrants, or another non-common-stock interest.
  • Amendment lineage: Original and amended Form 4 filings are linked so a correction is not counted as an additional purchase.
  • Duplicate event: Repeated disclosures of the same economic transaction are consolidated and counted once.
  • Purchase channel: The transaction must be a qualifying purchase that represents the insider's personal capital commitment.

Private transactions, derivatives, employee-plan acquisitions, option exercises, gifts, sales, and unresolved transactions are excluded. This report therefore focuses only on verified purchases that represent an insider's direct economic commitment to the company.

Research evidence only; not an investment recommendation. Source dates and point-in-time boundaries are displayed so evidence available on the Pulse Date remains distinct from later monitoring.

Related Articles

Information

MarketWizards is an investment analytics and intelligence platform focused on financial research, market data, AI analysis, and better investment decision-making.

Platform

Company