Latest Period
Q1 2026
Security Snapshot
INSPERITY, INC. - Common Stock (NSP) Institutional Ownership
CUSIP: 45778Q107
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
252
Shares (Excl. Options)
41,579,539
Price
$27.04
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- Security type / class
- Equity / Common Stock
- Symbol
- NSP on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 41,579,539
- Total 13F value
- $1,124,644,089
- Portfolio coverage rank
- 0%
- Share change
- +2,074,606
- Value change
- +$31,682,667
- Number of holders
- 252
- Shares outstanding
- 38,268,000
- SEC-reported price per share
- $28.53
- Insider filing price
- $28.53
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- NSP - INSPERITY, INC. - Common Stock is tracked under CUSIP 45778Q107.
- 252 institutions reported positions in Q1 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 266 to 252 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,533,965,570 to $1,124,644,089.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 252 institutions filings for Q1 2026.
Security key
45778Q107
Latest holder period
Q1 2026
13F holders
252
13D/G owners
6
CIK / CUSIP context first
Open Q1 2026 holders
NSP full holder history
INSPERITY, INC. SEC filings
INSPERITY, INC. company facts
INSPERITY, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 45778Q107:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
Security
NSP
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | +18% | $200,625,728 | +$34,727,341 | 5,181,289 | +21% | BlackRock, Inc. | 31 Dec 2025 |
| REINHART PARTNERS, LLC. | 7.3% | $106,287,755 | 2,745,035 | REINHART PARTNERS, LLC. | 30 Sep 2025 | |||
| Invesco Ltd. | 6.4% | $64,943,726 | 2,401,765 | Invesco Ltd. | 31 Mar 2026 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.8% | $58,977,755 | 2,181,130 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| EARNEST PARTNERS LLC | 5.4% | $55,877,403 | 2,066,472 | EARNEST PARTNERS LLC | 31 Mar 2026 | |||
| Mawer Investment Management Ltd. | 3.2% | -58% | $46,471,434 | -$59,101,705 | 1,200,192 | -56% | Mawer Investment Management Ltd. | 31 Dec 2025 |
As of 31 Mar 2026, 252 institutional investors reported holding 41,579,539 shares of INSPERITY, INC. - Common Stock (NSP). This represents 109% of the company’s total 38,268,000 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
86%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | 5,319,664 | -0.61% | 0% | $143,843,713 |
| REINHART PARTNERS, LLC. | 7.7% | 2,947,709 | +7.4% | 2.3% | $79,706,297 |
| Invesco Ltd. | 6.3% | 2,401,765 | +111% | 0.01% | $64,943,727 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6% | 2,149,770 | 0% | 0% | $58,129,781 |
| EARNEST PARTNERS LLC | 5.4% | 2,066,472 | +31% | 0.23% | $55,877,403 |
| GOLDMAN SACHS GROUP INC | 4.3% | 1,660,829 | +13% | 0.01% | $44,908,817 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 1,529,339 | 0% | 0% | $41,353,327 |
| HAWK RIDGE CAPITAL MANAGEMENT LP | 3.8% | 1,464,781 | 1.4% | $39,607,678 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.7% | 1,434,450 | -10% | 0.01% | $38,787,528 |
| STATE STREET CORP | 3.6% | 1,388,881 | +1.6% | 0% | $37,555,342 |
| BANK OF AMERICA CORP /DE/ | 3.5% | 1,345,533 | -42% | 0% | $36,383,213 |
| SEI INVESTMENTS CO | 3.4% | 1,311,430 | +48% | 0.03% | $35,461,068 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 2.4% | 931,155 | +24% | 0.11% | $25,178,431 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 846,460 | +1.2% | 0% | $22,892,748 |
| ROYCE & ASSOCIATES LP | 2.1% | 818,585 | +3.2% | 0.22% | $22,134,538 |
| Mawer Investment Management Ltd. | 2% | 746,943 | -38% | 0.13% | $20,197,339 |
| CITADEL ADVISORS LLC | 1.7% | 662,341 | +37% | 0.01% | $17,909,701 |
| TWO SIGMA INVESTMENTS, LP | 1.7% | 644,836 | +73% | 0.01% | $17,436,365 |
| DIMENSIONAL FUND ADVISORS LP | 1.6% | 601,753 | -10% | 0% | $16,272,838 |
| 22NW, LP | 1.3% | 493,000 | +412% | 10% | $13,330,720 |
| Pine Valley Investments Ltd Liability Co | 1.2% | 476,718 | 0.63% | $12,890,455 | |
| MORGAN STANLEY | 1.1% | 428,243 | -45% | 0% | $11,579,713 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 0.99% | 378,679 | -17% | 0.04% | $10,239,480 |
| D. E. Shaw & Co., Inc. | 0.99% | 377,738 | -58% | 0.01% | $10,214,035 |
| NORTHERN TRUST CORP | 0.98% | 376,811 | +0.61% | 0% | $10,188,970 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 41,579,539 | $1,124,644,089 | +$31,682,667 | $27.04 | 252 |
| 2025 Q4 | 39,612,543 | $1,533,965,570 | +$63,954,944 | $38.72 | 266 |
| 2025 Q3 | 37,450,510 | $1,841,363,889 | +$3,844,072 | $49.20 | 274 |
| 2025 Q2 | 37,056,752 | $2,226,709,011 | -$32,635,969 | $60.12 | 283 |
| 2025 Q1 | 36,799,236 | $3,278,442,427 | +$25,421,139 | $89.23 | 316 |
| 2024 Q4 | 36,568,666 | $2,834,504,088 | +$53,165,108 | $77.51 | 288 |
| 2024 Q3 | 35,526,372 | $3,126,131,005 | +$8,637,099 | $88.00 | 306 |
| 2024 Q2 | 35,315,519 | $3,221,472,101 | +$9,489,268 | $91.21 | 323 |
| 2024 Q1 | 35,187,212 | $3,856,976,528 | +$67,713,814 | $109.61 | 320 |
| 2023 Q4 | 34,533,578 | $4,047,226,801 | +$43,652,439 | $117.22 | 331 |
| 2023 Q3 | 34,113,638 | $3,329,483,036 | -$107,525,773 | $97.60 | 320 |
| 2023 Q2 | 35,093,017 | $4,174,519,896 | +$54,657,830 | $118.96 | 329 |
| 2023 Q1 | 34,645,165 | $4,210,150,333 | +$75,432,372 | $121.55 | 331 |
| 2022 Q4 | 34,068,267 | $3,869,922,627 | -$50,469,297 | $113.60 | 315 |
| 2022 Q3 | 34,544,934 | $3,523,416,345 | +$22,686,818 | $102.09 | 279 |
| 2022 Q2 | 34,229,131 | $3,416,016,900 | +$51,342,026 | $99.83 | 282 |
| 2022 Q1 | 33,821,719 | $3,396,613,450 | +$37,107,568 | $100.42 | 261 |
| 2021 Q4 | 33,316,977 | $3,933,000,513 | -$109,397,153 | $118.11 | 277 |
| 2021 Q3 | 34,196,117 | $3,786,390,541 | +$39,608,131 | $110.74 | 265 |
| 2021 Q2 | 33,916,550 | $3,066,760,445 | +$40,974,160 | $90.37 | 270 |
| 2021 Q1 | 33,535,212 | $2,809,825,907 | +$19,072,031 | $83.74 | 281 |
| 2020 Q4 | 33,286,403 | $2,710,229,486 | +$30,058,881 | $81.42 | 287 |
| 2020 Q3 | 32,813,938 | $2,152,600,646 | -$53,904,381 | $65.49 | 251 |
| 2020 Q2 | 33,713,789 | $2,181,293,128 | +$16,003,010 | $64.73 | 241 |
| 2020 Q1 | 33,918,138 | $1,264,835,701 | -$231,657,251 | $37.30 | 228 |