Public ownership evidence

Spok Holdings, Inc (SPOK) Ownership Disclosures

Read SPOK insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Spok Holdings, Inc: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-02
Trade date
2026-10-01
Reporting owners
Stein Todd J
Code
A
Shares
0
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-412439
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read SPOK fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read SPOK fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-10-022026-10-01Stein Todd JA0Not reported
2026-10-022026-10-01Stein Todd JA0Not reported
2026-10-022026-10-01Stein Todd JA2,383Not reported
2026-10-022026-10-01Hyun RandyA2,383Not reported
2026-10-022026-10-01SHOCKLEY BRETT AA2,383Not reported
2026-10-022026-10-01Byrne Barbara PetersonA2,383Not reported
2026-10-022026-10-01Byrne Barbara PetersonA0Not reported
2026-10-022026-10-01COURNOYER CHRISTINEA0Not reported
2026-10-022026-10-01COURNOYER CHRISTINEA2,383Not reported
2026-08-122026-08-10Woods-Keisling SharonS20,000Not reported
2026-08-122026-08-10Woods-Keisling SharonS0Not reported
2026-08-122026-08-10COURNOYER CHRISTINES8,320Not reported
2026-08-122026-08-10COURNOYER CHRISTINES0Not reported
2026-08-052026-08-03Woods-Keisling SharonA5,303Not reported
2026-08-052026-08-03Woods-Keisling SharonA5,304Not reported
2026-08-052026-08-03KELLY VINCENT DA22,935Not reported
2026-08-052026-08-03KELLY VINCENT DA22,936Not reported
2026-08-052026-08-03WALLACE MICHAEL WA13,761Not reported
2026-08-052026-08-03WALLACE MICHAEL WA13,761Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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Cornerstone Financial Management LLC2025-12-312026-08-29105$1,385None
CARLSON FINANCIAL, INC.2025-12-312026-08-2511,233$148,153None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25286$2,929None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,929$286,000None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2015,330$156,980None
Empowered Funds, LLC2026-06-302026-08-1815,119$154,819None
UNITED CAPITAL FINANCIAL ADVISORS, LLC2026-06-302026-08-18194,815$1,994,906None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1820,788$212,869None
Basecamp Wealth Advisors LLC2026-06-302026-08-154$41None
CSM Advisors, LLC2026-06-302026-08-15212,910$2,179,000None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-1569,857$715,336None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-1569,857$715,336None
Qube Research & Technologies Ltd2026-06-302026-08-15287,617$2,945,198None
IFG Advisory, LLC2026-06-302026-08-152,231$22,845None
Caption Management, LLC2026-06-302026-08-1560,000$614,400Call
OSAIC HOLDINGS, INC.2026-06-302026-08-156,042$61,862None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1524,450$250,366None
Man Group plc2026-06-302026-08-1557,712$590,971None
Trexquant Investment LP2026-06-302026-08-1539,184$401,244None
MetLife Investment Management, LLC2026-06-302026-08-1511,276$115,466None
JANE STREET GROUP, LLC2026-06-302026-08-153,534$36,188None
JANE STREET GROUP, LLC2026-06-302026-08-1511,659$119,388None
Uniplan Investment Counsel, Inc.2026-06-302026-08-15215,764$2,209,424None
Legal & General Group Plc2026-06-302026-08-151,851$18,954None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1513,927$142,612None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1522,380$229,171None
Numerai GP LLC2026-06-302026-08-1546,223$473,324None
Atom Investors LP2026-06-302026-08-1544,289$453,519None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15202$2,151None
AMERIPRISE FINANCIAL INC2026-06-302026-08-152,446$25,047None
AMERIPRISE FINANCIAL INC2026-06-302026-08-1536,568$374,456None
Cambria Investment Management, L.P.2026-06-302026-08-1525,586$262,001None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-151$10None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1512$123None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1570$717None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1543,837$448,893None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15609$6,236None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-158$82None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15450$4,608None
ROYAL BANK OF CANADA2026-06-302026-08-151,926$20,000None
ROYAL BANK OF CANADA2026-06-302026-08-15622$6,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-1527,860$303,674None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-1534,600$354,304None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-1515,200$155,648None
D. E. Shaw & Co., Inc.2026-06-302026-08-15106,919$1,094,851None
D. E. Shaw & Co., Inc.2026-06-302026-08-1523,244$238,019None
CITADEL ADVISORS LLC2026-06-302026-08-15183,447$1,878,497None
Larson Financial Group LLC2026-06-302026-08-152,000$20,480None
Point72 Asset Management, L.P.2026-06-302026-08-1519,105$195,635None
Invesco Ltd.2026-06-302026-08-1522,470$230,093None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗CARLSON FINANCIAL, INC. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗MERCER GLOBAL ADVISORS INC /ADV ↗Empowered Funds, LLC ↗UNITED CAPITAL FINANCIAL ADVISORS, LLC ↗PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO ↗Basecamp Wealth Advisors LLC ↗CSM Advisors, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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