Comparable stake leader
George F. Colony
SEC ownership of FORRESTER RESEARCH, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001023313.
Disclosed value leader
George F. Colony
Comparable rows
4/50
Latest evidence
20 Aug 2026
- Public ticker
- FORR on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
George F. Colony
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
George F. Colony
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
20 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001023313
- Issuer location
- Cambridge, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of FORRESTER RESEARCH, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
George F. Colony
Disclosed value leader
George F. Colony
Comparable rows
4/50
Latest evidence
20 Aug 2026
3/4/5
13D/G
13F
Lead comparable stake: 39%
46 rows are not safely comparable across share classes.
13D/G row: George F. Colony
Showing 1-8 of 50 holder rows.
Quick read
George F. Colony leads the comparable SEC ownership view at 39%.
4 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens George F. Colony's linked filing trail.
Comparable ownership
Top 4
George F. Colony
39%
Portolan Capital Management, LLC
7.9%
BlackRock, Inc.
5%
ROYCE & ASSOCIATES LP
0.56%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| George F. Colony |
3/4/5
13D/G
Chairman and CEO, Director, 10%+ Owner
|
39%
Reported 13D/G
· 30 Jun 2025
|
$132,773,594
7,380,411 shares
|
— | 12 Jun 2024 |
| Portolan Capital Management, LLC |
13F
13D/G
Company
|
7.9%
Reported 13D/G
· 31 Mar 2026
|
$13,657,209
1,623,925 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
5%
Reported 13D/G
· 31 Dec 2024
|
$9,500,260
946,241 shares
|
$0 | 31 Dec 2024 |
| ROYCE & ASSOCIATES LP |
13D/G
|
0.56%
Reported 13D/G
· 30 Sep 2025
|
$1,127,809
106,387 shares
|
-$10,759,061 | 30 Sep 2025 |
| Nantahala Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$6,420,581
763,446 shares
|
— | 30 Jun 2026 |
| Tieton Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$6,370,000
757,476 shares
|
— | 30 Jun 2026 |
| FIRST MANHATTAN CO. LLC. |
13F
Company
|
—
denominator unverified
|
$6,307,500
750,000 shares
|
— | 30 Jun 2026 |
| Pacific Ridge Capital Partners, LLC |
13F
Company
|
—
denominator unverified
|
$5,931,943
705,344 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$198,863.
Buys
$0
Insiders: 0
Sells
$198,863
Insiders: 3
Net
-$198,863
Shares: -17,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 17,000
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 17,000 | $0 | $198,863 | -$198,863 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to FORRESTER RESEARCH, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
George F. Colony
Net 12M change
-$198,864
Latest report
01 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| George F. Colony | Chairman and CEO, Director, 10%+ Owner | $132,773,594 | Mixed | 12 Jun 2024 | ||
| Kelley Hippler | Chief Sales Officer | $914,182 | Mixed | 12 Aug 2022 | ||
| Carrie Johnson | Chief Product Officer | $719,554 | -$57,550 | -7.4% | Mixed | 13 Aug 2026 |
| Leo Christian Finn | Chief Financial Officer | $717,989 | -$82,433 | -10% | Mixed | 20 Aug 2026 |
| Ryan Darrah | Chief Legal Officer | $523,622 | -$58,881 | -10% | Mixed | 20 Aug 2026 |
| Robert Galford | Director | $489,796 | Mixed | 03 Jun 2024 | ||
| Yvonne Wassenaar | Director | $475,350 | Mixed | 03 Jun 2024 | ||
| Sharyn Leaver | Chief Research Officer | $467,888 | Mixed | 01 Apr 2026 | ||
| Gretchen Teichgraeber | Director | $462,871 | Mixed | 01 Jun 2023 | ||
| Nathaniel Swan | Chief Sales Officer | $459,804 | Mixed | 01 Apr 2025 | ||
| Steven P. Peltzman | Cbto | $429,716 | Mixed | 01 Aug 2024 | ||
| David Boyce | Director | $366,312 | Mixed | 03 Jun 2024 | ||
| Jean Birch | Director | $359,525 | Mixed | 01 Jun 2022 | ||
| Michael Kasparian | Chief Information Officer | $308,870 | Mixed | 01 Jun 2024 | ||
| Shirley Macbeth | Chief Marketing Officer | $295,612 | Mixed | 01 Aug 2024 | ||
| Sherri Kottmann | Chief People Officer | $282,742 | Mixed | 01 Aug 2021 | ||
| Scott Chouinard | Chief Accounting Officer | $269,678 | Mixed | 01 Aug 2026 | ||
| Neil Bradford | Director | $258,107 | Mixed | 01 Jun 2026 | ||
| Michael Facemire | Chief Technology Officer | $255,416 | Mixed | 01 Aug 2026 | ||
| Jobina Gonsalves | Chief People Officer | $245,101 | Mixed | 01 Jun 2026 |
Recent insider transactions for FORRESTER RESEARCH, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Christophe Favre | FORR | Common Stock | Tax liability | -1.76% | -257 | 14,366 | 01 Sep 2026 | Direct | ||
| Christophe Favre | FORR | Common Stock | Options Exercise | 3.92% | 552 | 14,623 | 01 Sep 2026 | Direct | ||
| Christophe Favre | FORR | Restricted Stock Units | Options Exercise | -50% | -552 | 552 | 01 Sep 2026 | Direct | ||
| Ryan Darrah | FORR | Common Stock | Sale | -15.5% | $58,880 | $11.78 | -5,000 | 27,244 | 20 Aug 2026 | Direct |
| Leo Christian Finn | FORR | Common Stock | Sale | -16.9% | $82,433 | $11.78 | -7,000 | 34,476 | 20 Aug 2026 | Direct |
| Carrie Johnson | FORR | Common Stock | Sale | -12.4% | $57,550 | $11.51 | -5,000 | 35,409 | 13 Aug 2026 | Direct |
| Christophe Favre | FORR | Common Stock | Tax liability | -2.09% | -301 | 14,071 | 01 Aug 2026 | Direct | ||
| Christophe Favre | FORR | Common Stock | Options Exercise | 4.61% | 634 | 14,372 | 01 Aug 2026 | Direct | ||
| Christophe Favre | FORR | Restricted Stock Units | Options Exercise | -50% | -634 | 634 | 01 Aug 2026 | Direct | ||
| Scott Chouinard | FORR | Common Stock | Tax liability | -1.74% | -271 | 15,264 | 01 Aug 2026 | Direct | ||
| Scott Chouinard | FORR | Common Stock | Options Exercise | 6.33% | 925 | 15,535 | 01 Aug 2026 | Direct | ||
| Scott Chouinard | FORR | Restricted Stock Units | Options Exercise | -50% | -925 | 925 | 01 Aug 2026 | Direct | ||
| Michael Facemire | FORR | Common Stock | Tax liability | -12% | -1,102 | 8,109 | 01 Aug 2026 | Direct | ||
| Michael Facemire | FORR | Common Stock | Options Exercise | 39.4% | 2,605 | 9,211 | 01 Aug 2026 | Direct | ||
| Michael Facemire | FORR | Restricted Stock Units | Options Exercise | -80.4% | -2,605 | 634 | 01 Aug 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Tax liability | -1.83% | -106 | 5,675 | 01 Aug 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Options Exercise | 5.63% | 308 | 5,781 | 01 Aug 2026 | Direct | ||
| Andrew Cox | FORR | Restricted Stock Units | Options Exercise | -50% | -308 | 308 | 01 Aug 2026 | Direct | ||
| Neil Bradford | FORR | Common Stock | Tax liability | -0.43% | -198 | 45,602 | 01 Jun 2026 | Direct | ||
| Jobina Gonsalves | FORR | Common Stock | Tax liability | -12.4% | -1,441 | 10,230 | 01 Jun 2026 | Direct | ||
| Jobina Gonsalves | FORR | Common Stock | Options Exercise | 72.7% | 4,913 | 11,671 | 01 Jun 2026 | Direct | ||
| Jobina Gonsalves | FORR | Restricted Stock Units | Options Exercise | -33.3% | -4,913 | 9,825 | 01 Jun 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Tax liability | -22.3% | -1,568 | 5,473 | 01 Jun 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Options Exercise | 153.6% | 4,264 | 7,041 | 01 Jun 2026 | Direct | ||
| Andrew Cox | FORR | Restricted Stock Units | Options Exercise | -25% | -4,264 | 12,792 | 01 Jun 2026 | Direct | ||
| Anthony J. Friscia | FORR | Common Stock | Award | 23.6% | 8,000 | 41,938 | 12 May 2026 | Direct | ||
| Neil Bradford | FORR | Common Stock | Award | 21.2% | 8,000 | 45,800 | 12 May 2026 | Direct | ||
| Cory Munchbach | FORR | Common Stock | Award | 54.3% | 8,000 | 22,737 | 12 May 2026 | Direct | ||
| Warren N. Romine | FORR | Common Stock | Award | 36.9% | 8,000 | 29,702 | 12 May 2026 | Direct | ||
| Robert Paul Bennett | FORR | Common Stock | Award | 41.4% | 8,000 | 27,305 | 12 May 2026 | Direct | ||
| Scott Chouinard | FORR | Restricted Stock Units | Award | 6,800 | 6,800 | 15 Apr 2026 | Direct | |||
| Christophe Favre | FORR | Common Stock | Tax liability | -10% | -1,532 | 13,738 | 01 Apr 2026 | Direct | ||
| Christophe Favre | FORR | Common Stock | Options Exercise | 26.3% | 3,177 | 15,270 | 01 Apr 2026 | Direct | ||
| Christophe Favre | FORR | Restricted Stock Units | Options Exercise | -61.7% | -3,177 | 1,972 | 01 Apr 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Tax liability | -20.7% | -723 | 2,777 | 01 Apr 2026 | Direct | ||
| Andrew Cox | FORR | Common Stock | Options Exercise | 107.8% | 1,816 | 3,500 | 01 Apr 2026 | Direct | ||
| Andrew Cox | FORR | Restricted Stock Units | Award | 25,000 | 25,000 | 01 Apr 2026 | Direct | |||
| Andrew Cox | FORR | Restricted Stock Units | Options Exercise | -65.4% | -1,816 | 960 | 01 Apr 2026 | Direct | ||
| Jobina Gonsalves | FORR | Common Stock | Tax liability | -20.4% | -1,732 | 6,758 | 01 Apr 2026 | Direct | ||
| Jobina Gonsalves | FORR | Common Stock | Options Exercise | 143.3% | 5,000 | 8,490 | 01 Apr 2026 | Direct | ||
| Jobina Gonsalves | FORR | Restricted Stock Units | Award | 25,000 | 25,000 | 01 Apr 2026 | Direct | |||
| Jobina Gonsalves | FORR | Restricted Stock Units | Options Exercise | -25% | -5,000 | 15,000 | 01 Apr 2026 | Direct | ||
| Scott Chouinard | FORR | Common Stock | Tax liability | -9.91% | -1,608 | 14,610 | 01 Apr 2026 | Direct | ||
| Scott Chouinard | FORR | Common Stock | Options Exercise | 40.1% | 4,645 | 16,218 | 01 Apr 2026 | Direct | ||
| Scott Chouinard | FORR | Restricted Stock Units | Options Exercise | -61.7% | -4,645 | 2,880 | 01 Apr 2026 | Direct | ||
| Leo Christian Finn | FORR | Common Stock | Tax liability | -9.21% | -4,207 | 41,476 | 01 Apr 2026 | Direct | ||
| Leo Christian Finn | FORR | Common Stock | Options Exercise | 45.7% | 14,335 | 45,683 | 01 Apr 2026 | Direct | ||
| Leo Christian Finn | FORR | Restricted Stock Units | Award | 50,000 | 50,000 | 01 Apr 2026 | Direct | |||
| Leo Christian Finn | FORR | Restricted Stock Units | Options Exercise | -41.3% | -8,447 | 12,001 | 01 Apr 2026 | Direct | ||
| Carrie Johnson | FORR | Common Stock | Tax liability | -11.7% | -5,353 | 40,409 | 01 Apr 2026 | Direct |
* marks a reported price that did not pass the local price check.